(E82/E72 Lite)
The Trainer’s Reference is prepared as a source of reference for Sales Companies to help prepare for training
on a new product.
Trainer’s Reference
for
iR5000/6000
Use of this reference should be strictly supervised.
CONFIDENTIAL
Date: June, 2000
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
CONTENTS
Chapter 2 Outline of New Functions
System Construction ..............................................................................................2-1Outline of Electrical Circuitry ..................................................................................2-3Image Processing by the Main Controller ............................................................2-15Controlling the Power Supply for the Main Controller ..........................................2-20Original Exposure System ....................................................................................2-25Identifying the Size ...............................................................................................2-26Image Processing in the Reader Unit ...................................................................2-30Laser Exposure System .......................................................................................2-33Image Formation ..................................................................................................2-36Pickup/Feed System ............................................................................................2-44Fixing System .......................................................................................................2-48Soft Counters .......................................................................................................2-50
Chapter 1 Outline of the Product
External View .........................................................................................................1-1Features .................................................................................................................1-2Outline of the Product .............................................................................................1-4Features in Service ................................................................................................1-5General Specifications ...........................................................................................1-7Additional Functions ...............................................................................................1-9Types of Accessories ........................................................................................... 1-13
Chapter 3 Maintenance and Inspection
Maintenance and Inspection ..................................................................................3-1Soft Counters .........................................................................................................3-6Downloading .........................................................................................................3-10
Chapter 4 Accessories
DADF-D1................................................................................................................. 4-1Finisher-F1/Saddle Finisher-F2 ............................................................................. 4-21
Cha
pter
1 O
utlin
e of
the
Pro
duct
1-1
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
External View
1. External View of the E82/E72
Figure 1-101
[1] Finisher
[2] Copy tray
[3] Shift tray
[4] E82/E72 (for both, ADF comes as standard)
[5] Side paper deck
[1]
[2]
[3]
[5]
[4]
1-2
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Features
Figure 1-102 Cross Section of the E82/E72
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]
[26]
[27]
[30]
[28]
[29]
[31]
[33]
[32]
[34]
[35]
[36]
[37]
[38]
[39]
[40]
[41]
[42]
[43]
[44]
[45]
[46]
1-3
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Features
[1] ADF reading glass
[2] No. 1 mirror
[3] Scanning lamp
[4] Copyboard glass
[5] Feed assembly
[6] Fixing web
[7] Feeding assembly
[8] Laser mirror 3
[9] Laser mirror 2
[10] Laser mirror 1
[11] Drum cleaner assembly
[12] Primary charging assembly
[13] Photosensitive drum
[14] Laser mirror 4
[15] CCD unit
[16] Laser unit
[17] Developing cylinder
[18] Pre-transfer charging assembly
[19] Manual forwarding roller
[20] Manual feed roller
[21] Manual separation roller
[22] Registration roller
[23] Transfer charging assembly
[24] Separation charging assembly
[25] Right deck feed roller
[26] Right deck separation roller
[27] Right deck pickup roller
[28] Right deck
[29] Cassette 3 pickup roller
[30] Cassette 3 feed roller
[31] Cassette 3 separation roller
[32] Cassette 4 pickup roller
[33] Cassette 4 feed roller
[34] Cassette 4 separation roller
[35] Cassette 4
[36] Cassette 3
[37] Left deck
[38] Left deck separation roller
[39] Left deck feed roller
[40] Left deck pickup roller
[41] Fixing lower roller
[42] Internal delivery roller
[43] External delivery roller
[44] Fixing upper roller
[45] No. 3 mirror
[46] No. 2 mirror
1-4
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Outline of the Product
1. Background of the Product
a. Market Environment
The black-and-white digital copier market is expanding rapidly led by
15- to 30-cpm machines. The competition have started to shift their efforts
to 40- to 65-cpm machines, introducing a full line of machines and
realizing reduced cost with the aim of replacing analog machines (e.g.,
NP6050).
In addition, most companies are making efforts in the field of
networking, and a shift from CV to PV is becoming conspicuous in
keeping with a shift to high-speed machines.
b. Objectives
• To introduce a full line of digital machines by brining in a 60-cpm
machine with schedule/cost and the moves of the competition in mind.
• To bring in a machine with a competitive edge in terms of cost
performance, serving as an office printer.
• To bring in a machine capable of accommodating various scanner/
printer combinations based on a standardized interface.
• To enable separation of a scanner and a printer (IP-STD model only)
while at the same time to enable the integration of various types of
scanners and printers.
2. Features
High speed: 50 cpm (E82), 60 cpm (E72)
High image quality: read resolution of 600 × 600 dpi, print resolution of 1200
(equivalent) × 600 dpi
Hard disk: comes as standard (6.4 GB), enabling electronic sorting
Paper source: large-capacity holding as many as 7,650 sheets of paper
3. Estimated Life of the Product
3,000,000 sheets or 5 yr.
4. Recommended Copy/Print Volume
30,000 to 50,000 sheets/month
5. Types of Chemical Products
1. Photosensitive Drum
A new type of drum specially designed for digital machines is used (A-Si/
80-dia.); it has an estimated life of 3,000,000 sheets.
2. Toner
It is used in common with the NP6050 (1.65 kg/bottle); it is capable of
processing 30,000 sheets (6% line originals; 0.055 g/A4).
1-5
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Features in Service
Figure 1-104 Scanning Lamp
2. Use of a Xenon Lamp
A xenon lamp does not have a filament, in principle making it free of breakage
caused by vibration and, ultimately, offering a long life.
Figure 1-103 Controller Unit
1. Integrated Controller
The controller unit governing the entire system is integrated to the back of the
machine, facilitating replacement work.
When a high-frequency voltage is
applied across terminals of a xenon
lamp, electric discharge occurs within
the xenon gas, causing the fluores-
cent material inside the lamp to emit
light.
1-6
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Features in Service
Figure 1-105 Cassette/Front Deck
3. Pickup Mechanism for the Cassette/Front Paper Deck
The machine's pickup mechanism for the cassette/paper deck is from the
GP605 so that individuals having experience with the GP605 can easily
replace the feed roller and separation roller.
4. Construction of the Process Unit
The construction of the process unit consisting of the photosensitive drum,
primary charging assembly, and cleaner is more or less the same as that of the
NP6050 so that individuals having experience with the NP6050 can easily
service the parts associated with the process unit.
Figure 1-106 Process Unit
1-7
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
General Specifications
Console
Fixed
Xenon lamp
Lens array (fixed focal point; F3.7)
Amorphous silicon drum (80-dia.)
1. Type
Body
Copyboard
Light source
Lens
Photosensitive medium
Indirect electrostatic reproduction
Corona
Laser
Auto or manual
Dry, single-component toner projection
Front paper deck (2 cassettes, auto)
Front cassette (2 cassettes; auto)
Manual tray (about 50 sheets of 80 g/m2)
Corona
Corona (static separation)
Blade
Heat roller
230 V: 600 W (main) + 600 W (sub)
2. Mechanisms
Reproduction
Charging
Exposure
Copy density adjustment
Development
Pickup
Transfer
Separation
Cleaning
Fixing
600 × 600 dpi
1200 (equivalent) × 600 dpi
E72: 60 cpm (A4/LTR, 1-on-N, from cassette/
deck)
E82: 50 cpm (A4/LTR, 1-on-N, from cassette/
deck)
Leading edge: 4.0 +1.5, -1.0 mm (4.5 ± 8 mm)*1
Trailing edge: 2.0 ± 1.5 mm (2.0 ± 1.8 mm)*1
Left/right: 2.5 ± 1.5 mm (2.5 ± 2.0 mm)*1
*1:The value in parentheses indicate when the
ADF is in use.
Universal cassette*2: A3, B4, A4, B5, A5R, A4R,
B5R, 279.4×431.8 mm (11×17), LGL, LTR,
LTRR, STMT (vertical feeding)
*2:In the case of cassette 4 of the 230-V model,
fixed to a single size.
Capacity:550 sheets (approx.; 80 g/m2)
3. Functions
Read resolution
Print resolution
Copying speed
Image margin
Cassette
1-8
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
General Specifications
A3, B4, A4, B5, A5R, A4R, B5R, 27.94×431.8
mm (11×17), LGL, LTR, LTRR, STMT (vertical
feeding)
Capacity: 50 sheets (approx.; 80 g/m2)
Capacity: 250 sheets (approx.; 80 g/m2 equivalent)
6.4 GB
Manual feed tray
Delivery tray
Hard disk capacity:
Temperature: 15° to 30°C
Humidity: 5% 80%
Atmospheric pressure:810.6 to 1013.3 hpa (0.8 to
1.0 atm)
E72: 1.5 KW max.
E82: 1.5 KW max.
In Standby E72: W E82: W
During copying, E72: 78 dB max., E82: 71 dB max.
In standby, E72: 55 dB max., E82: 50 dB max.
(sound power level, impulse mode)
0.05 ppm or less (after 250,000 sheets)
mm (W) × mm (D) × mm (H)
200 kg (approx.)
4. Others
Operating environment
Power consumption
Noise
Ozone
Dimensions (mm)
Weight
1-9
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Additional Functions
1. Extension Mode
Description
Copies both left and right pages (as of an open book) on separate sheets in a single
operation.
Inserts a sheet between transparencies when copies are made on transparencies.
Reproduces an original by moving the entire image to the center or a corner.
Prints a front/back cover and interleaves on paper different from paper used for the
body.
Accepts originals of mixed sizes (different in breadthwise dimension or different
sizes) to print on appropriate sheet sizes.
Creates a margin on the side of copies.
Erases frame images or hole images of the original from copies.
Prints 2, 4, or 8 originals on a single sheet of paper by automatically reducing them.
Reproduces a single original on sheets of a selected size by automatically enlarging
them by 200% or 400%.
Reproduces an original by reversing its black and white areas.
Reproduces an original by increasing its contrast (black and white).
Stores or retrieves a copying mode.
Recalls up to three most recently stored copying modes for printing.
Reproduces single- or double-sided originals so that the prints will be in the form of
a book when folded.
Prints a single image a specific number of times vertically/horizontally.
Prints an image as it is reflected in a mirror.
Reproduces originals placed at intervals in a single session.
Reproduces an original of extra length (needs settings in service mode).
Mode
Two-Page Separation
Transparency Interleaving
Shift
Cover/Sheet Insertion
Different Size Originals
Margin
Frame Erase
Image Combination
Image Separation
Nega/Posi
Sharpness
Mode Memory
Recall
Booklet
Image Repeat
Mirror Image
Job Build
Extra-Length Mode
1-10
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
2. User Mode
Additional Functions
COMMONSETTINGS
INITIAL FUNCTION
AUTO CLEAR SETTING
AUDIBLE TONES
INCH ENTRY
DRAWER ELIGIBILITYFOR APS/ADS
STORE PAPER TYPE
ENERGY SAVER MODE
LTRR/STMT ORIGINALSELECTION
TRAY DESIGNATION
PRINTING PRIORITY
MANUAL PAPER STANDARDSETTINGS
LOCAL PRINT STANDARDMODE
INITIALIZE COMMONSETTING
Use it to select either Copy*, Box, or Other.
Use it to select either Return* or Do Not Return.
Use it to turn on/off the buzzer. (input sound, warning, job end; foreach, on*/off)
Use it to select or de-select inch input. (on/off*; however, if USA,off)
Use it to select Auto Select for each cassette; for the copier and theprinter. (for manual feed, on/off*; for each cassette, on*/off)
Use it to register a paper type for the front paper deck, each cassette,or side paper deck. (plain paper*, letterhead, thick paper, coloredpaper)
Use it to change the level of power save mode. (-10%*, -25%, -50%,no return time)
Use it to specify distinction between LTRR and STMT. (manual*,LTRR, STMT)
Use it to select a function for the finisher tray. (tray A: copier*,printer, other; tray B: copier, printer*, other)
Use it to set priority of printing. (copier*, printer, other)
Use it to specify storage of standard mode for manual feed paper.(yes, no*).
Use it to set standard mode for local printing. (paper select, quantity,sort, double-sided printing, delete file after printing, delete file)
Use it to initialize common settings to factory settings. (yes, no)
*: At time of shipment.
1-11
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Additional Functions
COPYSETTINGS
STANDARD KEY 1/2SETTINGS
AUTO ORIENTATION
AUTO COLLATE
JOB DURATION DISPLAY
IMAGE ORIENTATIONPRIORITY
PHOTO MODE
MANUAL FEED PAPER STAN-DARD MODE REGISTRATION
STANDARD SETTINGS
INITIALIZE COPY SETTING
Use it to register a preference key to be displayed on the Basicscreen; use each mode key on the Extension Mode screen and eachmemory key in mode memory.
Use it to automatically rotate an image by computation of originalsize and reproduction ratio to copy it on a selected sheet. (on*, off)
Use it to switch to sort mode upon placement of originals in thefeeder. (on*, off)
Use it to specify whether copy wait time should be displayed. (on,off*)
Use it to select priority on image orientation. (on, off*)
Use it to select film photo mode. (on, off*)
Use it to register manual feed paper standard mode. (yes, no*)
Use it to change the copying mode registered as standard. (register,initialize)
Use it to initialize the copier settings to factory settings. (yes, no)
TIMERSETTING
DATE/TIME SETTINGS
CHANGE AUTO SLEEP TIME
CHANGE AUTO CLEAR TIME
LOW POWER MODE TIME
TIME UNTIL UNIT QUIETSDOWN
DAILY TIMER SETTING
Use it to set the current date and time.
Use it to turn off the control panel power switch to start sleep state atthe end of operation. (0, 30 min; 1*, 2 to 24 hr)
Use it to set the time after which the touch panel display returns tothe Basic screen at the end of operation. (0, 1, 2* through 9 min)
Use it to set the time after which a shift is made to low power modeat the end of operation. (0, 10, 15*, 20, 30, 40, 50, 60, 90 min; 2 to 4hr)
Use it to set the time after which silent mode is started at the end ofoperation. (0, 1* to 9 min)
Use it to set the time at which the control panel power switch turnsoff automatically on a weekly basis. (every day from Sunday to Sat-urday; 00:00 to 23:59; 1-min interval)
CLEANING/ADJUSTMENT
ZOOM FINE ADJUSTMENT
FEEDER CLEANING
WIRE CLEANING
SADDLE STITCH STAPLEREPOSITIONING
SADDLE STITCH POSITIONADJUSTMENT
Use it to make fine-adjustments when a small discrepancy occurs insize between original and copy for vertical and horizontal ratios.(-1.0% to +1.0%; 0.1% interval)
Use it to remove dirt from the pickup roller assembly by setting pa-per and moving it in the ADF.
Use it to clean the charging wires.
Use it to edge out the staple band in the middle binder unit.
Use it to adjust the middle position adjustment. (-2.0 to 0.0% to +2.0mm; 0.1-mm intervals)
*: Factory setting.
1-12
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
MAIL BOXSETTINGS
BOX SET/STORE
STANDARD SCAN SETTINGS
Use it to register/set a box. (up to 100 boxes; box selection, ID num-ber, file storage period, name, box initialize)
Use it to change the standard mode used for read settings. (register/initialize)
Additional Functions
REPORTSETTING
USER MODE SETTING Use it to print out the user mode settings.
SYSTEMSETTING
ADMINISTRATOR INFOSETTING
MACHINE INFO SETTING
DEPARTMENT IDMANAGEMENT
NETWORK INITIALIZATION
REMOTE UI SETTING
(ACCESSORY SUPPORT)
Use it to register system control information. (control ID register, IDnumber set, administrator name register, administrator mail addressregister, administrator contact address register, administrator com-ment register)
Use it to register the name of a device and its location.
Use it to select or de-select group ID control, register an ID number,and set count control.
Use it to make settings for TCP/IP, NetWare, AppleTalk, andEthernet drivers.
Use it to specify the use of a remote user interface. (use*, do not use)
*: Factory setting.
1-13
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Type Product name Remarks
Document handling DADF-D1 New
Pickup handling 3.5k Side Paper Deck New
Delivery handling Finisher-F1 New
Saddle Finisher-F2 New
Shift Tray New
Communications control Copy Data Controller-A1 Common
Remote Diagnostic Device II Common
Control Card-IV Common
Accessory board NA
1. Types of Accessories
Types of Accessories
2. DADF-D1
The DADF-D1 has been newly developed exclusively for stream reading, and
it comes as standard.
The machine is equipped with a reversal mechanism, capable of making
double- or single-sided copies of double-sided originals.
3. 3.5k Side Paper Deck
It is based on the Side Paper Deck-C1 (for the GP605), with modifications to
the deck main motor, sensor arrangement, and mounting kit.
4. Finisher/Saddle Finisher
It is based on the Finisher-C1/Saddle Finisher-C2 for the GP405 with modifi-
cations; it allows the addition of a specially designed reciprocating punch
unit as an accessory.
5. Shift Tray
The shift tray has been designed exclusively for the machine. Its construction
is made simple, and it is capable of accommodating about 500 sheets of paper
(80 g/m2).
6. Copy Data Controller-A1/Remote Diagnostic Device II
The existing controllers may be used as they are.
7. Control Card-IV
The existing control card may be used as it is.
8. ACC Board
A new network board kit, LIPS board kit, and PDL board kit are being devel-
oped and are expected for release.
Cha
pter
2 O
utlin
e of
New
Fun
ctio
ns
2-1
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
System Construction
1. Functional Construction
The functional construction of the machine is as follows:
a. Controller Unit
It controls the system as a whole, control panel, and digital image
processing; it also stores image data and communicates with external
devices.
b. Reader Unit
The machine's reader unit has been developed newly.
Most image processing is done by the controller unit, and the reader unit
mainly controls the following:
• Scanner sequence
• Scanning lamp
• Original size detection
• Shading correction
• Communication with ADF
c. Printer Unit
It is based on the NP6251, which is already on the market. A laser unit has
been added to the NP6251, and its duplexing unit uses a newly designed
through-path duplexing mechanism.
d. Control Panel
It uses 1/4 VGA LCD.
2-2
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
System Construction
Figure 2-101
Control panel
DC controller PCB
DC powersupply PCB
Main controller PCB
CCD/APPCB
Laser driver PCB
Reader controller PCB
Laser scanner
Original
Originalillumination
Optical path
Charging
Development
Trans-fer
Pickupcontrol
Manualfeed tray
Cleaning
Lower feeding assembly
Cassette 3
Deliverytray
Feeding
Sep-ara-tionFixing
Photo-sensitivedrum
Cassette 4
Hard disk
[Original exposuresystem]
[Image processing system]
[Laser exposure system]
[Pickup/feeding syste]
[Image formation system]
[Control system]
Accessory boards
Right deckLeft deck
Side paper deck (accessory)
Controller block
2-3
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Outline of Electrical Circuitry
1. Reader Controller PCB
2. DC Controller PCB
Name Description
CPU Controls the scanning lamp, controls the original size
detection mechanism, controls shading correction,
controls the CCD, controls the scanner sequence, controls
the copier sequence, controls communication with the
ADF, controls service mode
ROM Stores the control program
RAM Stores control data, stores service mode data, stores
user mode data
EEPROM Backs up RAM data
Name Description
CPU Controls jobs, controls operation state, controls fixing
temperature, controls high voltage, controls potential,
controls toner supply, controls paper feed, controls
printer sequence, controls output, controls motors,
controls the finisher (accessory), controls communica-
tion with the controller unit, controls service mode
DIMM ROM Flash memory for storing the control program
RAM Stores RAM data, stores service mode data, stores
user mode data
EEPROM Backs up RAM data
ROM Mask ROM for the control program (for future use)
2-4
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Figure 2-102
Outline of Electrical Circuitry
DC
con
trol
ler
PC
B
HV
T P
CB
Pot
entia
lco
ntro
lP
CB
CC
D/A
PPC
B
BD
PC
B
AD
F
Sca
nner
mot
or
Rea
der
cont
rolle
r P
CB
Mai
n co
ntro
ller
PC
B
Con
trol
pane
l
Inve
rter
PC
B
LA2
Lase
rsc
anne
rm
otor
M15
M3
IC12
5(C
PU
)
IC12
1IC
122
(RA
M)
DC
load
• C
lutc
h •
Sol
enoi
d •
Mot
or •
Sen
sor
• F
an
Etc
.
Insi
de c
asse
ttepa
per
leve
lde
tect
ion
PC
B
Dup
lexi
ngdr
iver
PC
B
DC
load
• C
lutc
h •
Sol
enoi
d •
Mot
or •
Sen
sor
Etc
.
IC12
0(I
PC
com
mun
-ic
atio
n 2)
IC50
21(I
PC
com
mu-
nica
tion
2)
DIM
M/R
OM
(IC
117)
IC50
16(R
OM
)
• F
inis
her
(ac
cess
ory)
Acc
esso
ry b
oard
s
(har
d di
sk)
IC65
01(C
PU
)
IC50
25(C
PU
) IC50
08IC
5009
(RA
M)
IC50
27(E
EP
RO
M)
AC
driv
erP
CB
IC10
4,10
5IC
109,
110
IC12
7,13
0(E
EP
RO
M)
2-5
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Outline of Electrical Circuitry
3. Main Controller PCB
a. Outline
The machine's main controller PCB is the result of integrating some of the
functions of the IP (image processor) PCB used in existing digital copiers
and some of the functions of the MFC (multi-function controller) PCB and
DC controller PCB; in addition to these, it also has newly expanded
functions.
The main controller PCB has the following functions:
• Image processing of the image data sent from the reader unit
• Image processing of the image data sent to the printer unit
• Handling input/output for the control panel
• Handling of memory image data
• Controlling the image server (HDD)
If a network accessory is installed, the following functions will also be
available:
• PDL data (PS, PCL) rasterization
• Network communication
• Interfacing with the host computer
The main controller PCB consists of a CPU core and various interfaces
(network interface, memory interface, scanner/printer interface); the
integration of these has enabled and facilitated flexible handling of image
data.
2-6
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Outline of Electrical Circuitry
b. Construction of the Main Controller PCB
The following shows the construction of the main controller PCB:
Figure 2-103
IPC5V
IP ASIC(MUSIGNY)
5V
CPU
3.3VB
SDRAM DIMM 3.3VB
SRAM(4Mbit)3.3VA
Primarybattery1000mA
RTC3.3VA
IPC I/F
ROM bus
I 2C bus
OSC System(90MHz)OSC PCI(30MHz)
OSCPRINTER
I/O chip(Spinoa)3.3VB
SD
RA
M b
us
MII bus
3.3VB(All-Night) 3.3VA 5V
5VR(All-Night
Serial I/F
BAT. I/F
External BUS
Font ROM(16Mbit)
5V
PC
I exp
ansi
on S
lot
PC
I exp
ansi
on S
lot
PC
I exp
ansi
on S
lot
LCX2453.3VA
PM-225V
SRAM 5V
SRAM 5V
PM-22 bus
SDRAM DIMM(32,64,128,256MB/slot)
DDI-S I/FReceiver
3.3VA
DDI-P I/FDriver3.3VA
DDI-PI/F
DDI-SI/F
ROM DIMM 8MByte 3.3VB
1 2 3 4
PM-225V
SRAM 5V
SRAM 5V
PCI bus
DII-
P b
us
DII-
S b
us
Reset(3.3VB)
Reset(3.3VA)
Reset(5V)
All-NightReset
Non-All-NightReset
Reset circuit
IEE
E12
84(p
erip
hera
l)
RIS
ER
I/F
E-I
DE
I/F
UI I
/F
HDD
OptionRiser card
Power supply I/F[Option]
Ethernet I/F
PHY
LAN
I/F
MACAddress
IEEE1284Buffer5VR
Serialport I/F
PCI Arbiter(PANDA)
3.3VB
COIN ROBOT I/F
2-7
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The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Outline of Electrical Circuitry
c. Internal Buses
The major buses of the main controller PCB are as follows:
c-1 SDRAM Bus
It connects the CPU and an SDRAM. It is synchronized with the system
clock (90 MHz), and its width is 64 bits. As many as two SDRAM DIMMs
(dual inline memory module) may be installed, and these DIMMs may be
of different capacities. The type of an installed SDRAM DIMM is
automatically identified by obtaining the SPD ROM information from the
I2C bus, explained later.
c-2 ROM Bus
It is a 32-bit width data bus connecting the CPU with a ROM DIMM. Its
timing of access is based on the system clock (90 MHz), and the clock
pulses may be set so that they are multiples of 90 MHz.
It is used not only for reading from a ROM but also for writing to a flash
ROM installed to a ROM DIMM slot and for setting of PM-22 registers; in
other words, it is a bi-directional bus.
c-3 PCI Bus
It serves as an internal bus connecting the CPU with an I/O chip (SPINOA)
within the main controller PCB.
Attachment of a raiser card to the controller will enable installation of
three PCI expansion slots (expansion bus).
The PCI bus of the main controller PCB complies with PCI Rev. 2.1
specifications: 32 bits, 33 MHz max. (30 MHz actual).
The power supplied to the expansion slots is as follows:
Slot 3: +3.3 V 3A, +5 V
Slots 2 and 1 combined:+3.3 V 4A, +5 V
c-4 MII Bus
It is used to connect to the network interface (Ethernet card; accessory). It
can connect the CPU to PHY on the network interface card.
c-5 DII-S/P Bus
It is used to connect the CPU to an IP ASIC. The DII-S bus is used for scan
data sent from the reader unit, while the DII-P bus is used for print data
sent to the printer unit.
+12 or -12V are not supplied.
2-8
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Outline of Electrical Circuitry
c-6 External Bus
It is used to connect the input/output control I/O chip and an image
processing IP ASIC or an SRAM serving as a backup memory (storing
user settings, parameters); it is a 16-bit wide data bus.
The I/O chip serves as a bridge between the PCI bus and the IP ASIC
setting bus.
c-7 E-ID Bus
It is used to connect the input/output I/O chip and the hard disk.
It supports a data transfer mode of up to Ultra DMA 33.
c-8 PM-22 Bus
It is used to connect the CPU and a PM-22.
c-9 I2C Bus
It is an I2C specification serial bus, and is used to connect the CPU and the
following devices:
Device Description
SPD ROM 0 SPD of SDRAM DIMM0
SPD ROM 1 SPD of SDRAM DIMM1
MAC ROM For MAC address
(on the network interface card)
Clock pulse generator Controls clock pulses.
2-9
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Outline of Electrical Circuitry
DIMM
It stands for "Dual-Inline Memory
Module."
CL=2, CL=3
These notations indicate the perfor-
mance level of SDRAM (number of
clock pulses for CAS wait); the smaller
the value, the faster the response.
d. Functions of the Major Parts
The major parts of the main controller PCB have the following functions:
d-1 CPU (IC1010)
It is Canon's proprietary CPU, and holds a CPU core, network interface,
DMA controller, PCI interface, ROM/RAM interface, and the like.
d-2 SDRAM (J1003/J1004)
It is used as the main memory, serving to temporarily store all image data
and program-related data.
As many as two SDRAM DIMM may be installed, and these DIMMs may
be of different capacities. The type of an installed DIMM is automatically
identified by obtaining the SPD ROM information from the I2C bus.
The total capacity of the SDRAM DIMMs must be 256 MB max.; if only
one DIMM is used, it must be installed to J1003.
The SDRAM DIMMs must comply with the following specifications:
• PC100-compatible
• CL=2 or CL=3 (if mixed, operates as CL=3)
• Unbuffered type
• 3.3V-compatible
• SDRAM Chip on DIMM
16 Mbit ×4, ×8, ×16 type
64 Mbit ×4, ×8, ×16 type
128 Mbit ×4, ×8, ×16 type
d-3 ROM DIMM (J1007, J1008, J1009, J1010)
There are four slots for ROM DIMMs. The ROM DIMM data bus is a 32-
bit bus, and ROM DIMMs may be installed independently of one another.
(At least one ROM must be installed for booting.)
Each ROM DIMM must be one equipped with a flash ROM or a mask
ROM, and the maximum capacity of each must be 8 MB.
Normally, a DIMM equipped with a flash ROM is installed; the type
(including the capacity) is identified by reading the ROM information
(electronic signature).
The installed flash ROM DIMM must comply with the following
specifications:
• Access time of 90 nsec
• 3.3V-compatible
• Maximum capacity per DIMM of 8 MB
• Data bus width of 32 bits
• ×16 type flash ROM (mounted in DIMM)
2-10
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Outline of Electrical Circuitry
Uses of SST and RST
SST is used when smoothing print
images from the PC, while RST is
used when smoothing reader images
(text or text/photo mode).
d-4 IP ASIC (Musigny; IC1005)
The IP ASIC is an image processing ASIC used for both input images from
the laser unit and output images to the printer unit.
It is connected to the reader unit by DDI-S and to the printer unit by DDI-
P, each connected to the scanner interface and the printer interface,
respectively.
Of the DDI-S and DDI-P signals, those related to communication are not
sent to the IP ASIC; they are directly sent to the CPU, with the remaining
signals sent to the IP PASIC.
The following are the functions that relate to reader input images:
1. Enlargement/reduction in main scanning direction
ratio settings between 6.25% and 819,200%
2. Enlargement/reduction in sub scanning direction
reduction to 1/2, 1/4, 1/8
3. Edge emphasis
filter size of 7×7; 16 types of filter coefficient
4. Binary processing
TBIC, dither (200-line, 7-value), screen
processing, simple binary (including notch processing)
5. Editing
blanking, framing, negative/positive reversal, slant, mirror,
fold, repeat
The following are the functions that relate to printer output images:
6. Binary density conversion
density conversion of binary images
7. Binary enlargement/reduction
SST, RST, WPD, toner save
8. Thickening
thickens lines or characters when generating a print image
Other functions include the following:
9. PG generation
generation of reader PG and printer PG
d-5 I/O Chip (Spinoa; IC1006)
The I/O chip (Spinoa) is an ASIC that handles inputs to and outputs from
the CPU, and also has the following:
1. PCI bus controller
2. External bus bridge
3. E-IDE HDD controller
4. RTC controller
2-11
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Outline of Electrical Circuitry
5. Black-and-white LCD controller
It has a built-in LCD controller for a 1/4 VGA (320×240), 640×240,
VGA (640×480) black-and-white binary LCD as well as a RAM for
the LCD controller.
6. IEE-2284 controller
7. GPI0
8. Interrupter Controller
It has a built-in external input interrupt controller, functioning to
coordinate multiple external interruptions and internal interruptions; it
also can mask individual interrupt factors and read the states of
interrupt factors.
d-6 PCI Arbiter (PANDA; IC1009)
It is an ASIC that can arbitrate one bus master of the PCI bus.
d-7 PM-22 (IC1011, IC1016)
PM-22 is a CODEC LSI from Pixel Magic used for image processing
(compression, expansion, and rotation); two of them are used.
PM-22 and the CPU are connected with a dedicated PN-22 bus interface,
and image data is exchanged with the SDRAM.
Its major functions include the following: compression/expansion of
binary images (for electronic sorting), rotation of images, and conversion
of resolution. A total of four 256-Kbit SRAMs (two for each PM-22 work
area) are mounted on the main controller PCB.
d-8 RTC
It is an RTC (real-time clock) used to keep track of time; it is RTC-4574SA
from SEIKO Epson (accuracy of 30 sec or less per month).
It also has an alarm function, capable of generating an interrupt at a
specific time.
It will continue to keep track of time in the absence of AC power by
resorting to the primary battery. If the voltage of the primary battery drops,
bits from the register are used to detect a drop in voltage.
d-9 SRAM (IC1002)
The SRAM is 4-Mbit (512 kB) in size, and is used to retain the various
parameters when the power is removed by resorting to the primary battery.
d-10 Hard Disk
It is a 6.4-GB, 3.5-inch hard disk with an E-IDE interface; it allows the use
of PIO, DMA, and Ultra DMA/33 access modes.
The hard disk retains the system software and the image data stored in a
mail box when the power is removed.
2-12
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Outline of Electrical Circuitry
d-11 OSC
The following clock generators are found on the main controller PCB:
1. IC1014
90 MHz: system clock
30 MHz: PCI clock
24 MHz: I/O-chip IEEE-1284 core clock
2. X1003
50 MHz: IP ASCI clock
d-12 User Interface
It is used for the LCD panel signals and the input/output signals (serial
communication) between the CPU and the control panel. The LCD panel
signals are sent to the I/O chip, while the serial communication signals are
sent to the CPU.
The LCD drive signals are sent from the I/O chip to the black-and-white
LCD.
The LCD panel is equipped with a backlight; it remains off unless the
machine is in standby state. The LCD controller stops the drive to the LCD
to turn off LCD indication; the controller serves to monitor only those
keys requiring attention.
d-13 IPC
The IPC is a serial communication controller built to the microprocessor,
and serves as an interface connecting to a copy data controller.
d-14 Primary Battery
It is a lithium battery used to back up SRAMs and RTCs.
It is designed to back up an SRAM or an RTC for at least 10 years,
including its shelf period (in standby, it consumes about 10 µA).
It does not require control by software, automatically switching to backup
mode when power drops.
The counter stop bit of the RTC may be checked at power-on to detect
exhaustion.
d-15 IEEE-1284 (Peripheral)
It is the interface to the host PC; when the machine is used as a PDL
printer, it can serve to receive PDL data. It is also used when updating the
system program stored on the hard disk.
The interface is the interface of the CPU so that print data may be received
even in soft sleep mode.
2-13
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Outline of Electrical Circuitry
d-16 Reset
It is an IC for generating reset signals. The reset circuit has power supply
monitor ICs belonging to three channels, and two types of reset signals are
generated (all-night reset signal or non-all-night reset signal).
(1) All-Night Reset
IC1026 monitors the +3.3R power supply for generation of the all-
night reset signal.
When the all-night reset signal is generated, the non-all-night reset
signal is also generated.
The +3.3V all-night reset signal is used to reset all-night devices (e.g.,
CPU). When an abnormal drop is detected in the +3.3-V all-night
power supply, the +3.3-V non-all-night devices and +5-V power
supply monitor IC (IC1058) will be reset, imposing a hardware reset
on all devices under the control of the main controller PCB.
The +3.3-V all-night reset signal is 100 msec in length.
(2) Non-All-Night Reset
IC1060 is used to monitor +3.3-V power supply system and, at the
same time, IC1058 is used to monitor the +5-V power supply system; if
the reset signal from ether IC falls short of the reference potential, a
non-all-night reset signal will be generated.
In response, a hardware reset is imposed on the +3.3-V non-all-night
devices and +5-V devices.
The non-all-night reset signal is also sent to the external interrupt
terminal of the CPU, enabling detection of the non-all-night reset
signal during normal operation. (The non-all-night reset signal has a
minimum pulse width of 100 msec, enabling detection as part of
normal detection of an interrupt. Interrupt processing is masked in
advance of removing the non-all-night power supply.)
d-17 LED
The following five LEDs are mounted to the main controller PCB:
LED1001 and LED1002 are connected to the general-purpose output port
of the CPU (used for scanner and printer), and they are designed to flash at
specific intervals when the machine starts up.
LED1003, LED1004, and LED1005 turn on as long as power is being
supplied.
LED location Turned on by
LED1001 SSACNST (scanner start signal)
LED1002 PPRTST (printer start signal)
LED1003 +3.3-V power supply (non all-night)
LED1004 +3.3-R power supply (all-night)
LED1005 +5-V power supply
2-14
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Outline of Electrical Circuitry
d-18 DIP SW (SW1002)
It is used for factory inspection, and all its bits must be at OFF.
d-19 Serial Port Interface (J1006)
It is a serial port connected to the CPU and used when obtaining internal
processing log data of the main controller PCB.
The signals at the connector are 3.3-V signals of the CPU, and require a
service tool (RS232C PCB) for level conversion if connection to an RS-
232C port (e.g., of a PC) is needed.
d-20 Power Supply Interface
The main controller PCB operates using either of three types of power
supplies: +3.3-V all-night, +3.3-V non-all-night, and +5-V non-all-night.
The +3.3-/+5-V non-all-night power supply is controlled by the main
controller itself.
d-21 Font ROM
The font ROM is a 16-Mbit mask ROM containing the following:
• 12-dot font for display
• font for report printing (not for PDL print)
• dictionary for kanji conversion
d-22 DC-DC Converter (IC1082)
The DC-DC converter generates +5R (all-night) from +3.3R (all-night);
the +5R power supply is used to drive the buffer for IEEE-1284 inputs/
outputs.
The specifications of the DC-DC converter are as follows:
Input voltage: 3.0 to 3.6 V
Output voltage: 4.8 to 5.2 V
Output current: 0 to 120 mA
2-15
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The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Image Processing by the Main Controller
Digital image processing by the main controller is performed as follows:
1. Outline
The main controller PCB uses its IC and the hard disk to perform digital image
processing.
a. IP-ASIC
Performs image processing of image data sent from the reader unit.
Performs image processing of image data sent to the printer unit.
b. PUC
Performs memory control of image data.
c. PM-22
Performs compression, expansion, rotation, and enlargement/reduction of
memory images.
d. I/O Chip
Performs image data control between CPU and image server.
e. SDRAM
Retains image data temporarily during image processing.
f. Hard Disk (image server)
Retains image data temporarily during image processing.
Retains image data using the Box function.
2-16
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Image Processing by the Main Controller
Figure 2-104
8
Reader unit
Enlargement/reduction(main scanning direction)
Edit processing
Density conversion (LUT)
Image memorycontrol
8
8
8
8
Edge emphasis
1
SDRAM
I/O control HDD
Image server
2
Smoothing
Copy (Scanning Data)
2
1
Binary-binary densityconversion
Printer unit
Printer PG
1
8
Reader PG
8
Main controller unit
Image data after shading
Binary processing (random error diffusion; text, text/photo, print photo)
Binary processing (dither screen; film photo)
Compression/expansion,rotation, enlargement/reduction
Density conversion (LUT)
Density adjustment (F-value conversion)
Brightness/density conversion(LOG conversion)
Density correction (¡ conversion)
2-51
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Image Processing by the Main Controller
Image Processing by the Main Controller for Print (PDL) Data
Image memorycontrol
SDRAM
I/O control HDD
Image server
4
Thickening
4
Printer unit
Printer PG
Main controller unit
Smoothing
Print (PDL) Data1
NetworkBi-Centronics
RIP1
2-16a
2-17
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Image Processing by the Main Controller
2. Image Processing of Input Images
The input image data from the reader unit is processed as follows:
a. Image Data from the Reader Unit
The image signals from the reader unit are 8-bit, 256-gradation brightness
image signals processed for shading correction.
The signals are sent using two signal lines (for odd-number and even-
number pixels).
b. Enlargement/Reduction (main scanning direction; IP-ASIC)
As in existing machines.
c. Edge Emphasis (IP-ASIC)
Edge emphasis is executed to enhance the images while preventing moire
and limiting the sharpness of images as much as possible in text, text/
photo, print photo, and film photo modes (which otherwise serve to de-
emphasize edges).
Filter size: 7×7
Filter coefficient: 16 types
d. Edit Function 1 (IP-ASIC)
Editing includes the following: blanking/framing, negative/positive
reversal, slant, mirror image, fold, and repeat.
e. Density Conversion (LUT; IP-ASIC)
Brightness image signals are converted into density image signals, and
processing is executed so that an output density curve appropriate to each
mode may be obtained.
e-1 LGO Conversion
A LOG conversion table is used to convert a brightness signal (whose data
is based on reflected light) into a density image signal expressing toner
density data.
e-2 Density Adjustment (F value conversion)
Density is adjusted using an F-value table to suit the setting of the Copy
Density key on the control panel.
However, this processing is not executed in memory copy mode.
e-3 Density Correction (gamma conversion)
The gamma conversion table of each mode is used for density correction
in text, text/photo, print photo, and film photo mode.
2-18
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Image Processing by the Main Controller
f. Binary Processing (random error diffusion: R-ED; IP-ASIC)
Using a random error diffusion method (R-ED), the 8-bit image density
signal of each mode (text, text;photo, film print) is converted into a 1-bit
image density signal (binary).
f-1 Step 1
The 0-255 gradation level is converted into a 16-operation level.
For an image input signal, a random number is added using 8 as the slice
value.
The 0-255 8-bit signal is divided by 17 to convert it into a 0-15 4-bit
signal.
f-2 Step 2
The 0-15 4-bit signal from the error diffusion method is subjected to
binary processing by converting it to a 0-1 1-bit signal.
The slice value is controlled for error diffusion based on the input value,
average density, and patterns resulting from binary processing.
g. Binary Processing (dither screen method; IP-ASIC)
A dither screen method is used to convert an 8-bit image density signal of
print photo mode into a 1-bit image density signal (binary).
Although a binary image, 144 gradations are possible owing to 12×12-
pixel dither screen processing.
EX: GP605 (256 gradations by 16×16-pixel dither screen processing)
3. Image Memory Control
The binary image data is controlled as follows:
a. Compression/Expansion, Rotation, and Enlargement/Reduction
(CPU-PM-22)
The functions include compression/expansion of binary images (for
electronic sorting), rotation of images, and conversion of resolution.
b. SDRAM (CPU-SDRAM)
The image data used for image memory control are stored temporarily in
memory.
c. Hard Disk (CPU-I/O; chip-HDD)
Image data is retained using the Box function, with the hard disk serving
as an image server.
2-19
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The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Image Processing by the Main Controller
4. Image Processing of Output Images
The output images sent to the printer unit are processed as follows:
a. Smoothing (IP-ASIC)
In the case of text or text/photo mode, 600 × 600-dpi input images are
subjected to smoothing for conversion into 1200 (equivalent) 600-dpi
images.
In smoothing, the image data is checked against 7×7-pixel pattern
matrixes (288 templates), by which each pixel in question is processed.
Notch processing is also executed as part of smoothing for patterns unique
to scanned images.
b. Thickening (IP-ASIC)
Fine lines are thickened to improve reproduction.
Scanned images are subjected to thickening by binary-binary density
conversion (binary image data is corrected after conversion into 256-value
data and then connected back to binary data once again).
PDL output images are processed for thickening by adding a 1/2 pixel
(1200 dpi) above each horizontal line and a 1/2 pixel (1200 dpi) to the
right of each vertical line.
2-20
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Controlling the Power Supply for the Main Controller
Figure 2-105
The machine's power supply is controlled as follows:
1. Distribution of Power
The following diagram shows how the machine distributes power.
Lea-kagebreaker
ELC
B
Linenoisefilter
LF1
ACdriverPCB
Drum heater (H3)
Cassette heater (H4)Main relay (RLY1)
Environmentswitch(SW3)
DC controller PCB
Reader controller PCB
Controller block
(SW1)
Heaterswitch(SW4)
Drumtempe-raturecontrolPCB
ACinput
3.3VA/5V12VU/24VU
24VU
3.3VA13.3VA23.3VB/5V
Harddisk
Fixing/feedingPCB
Inver-terPCB
Control Card IV (accessory)
24V
24V
U 5V
24V
3.3V
A24
V
24V
U
5V
LaserdriverPCB
Laserscannermotor
24VU3
Finisher(accessory)
24VA
ADF 24VU
Paper deck(accessory)
24VU2ASSIST(accessory)
5V24VU2
5V12VU
MotordriverPCB
Mainmotor(M2)
Drummotor(M1)
24V
5V24
V
24V
U1
5V5V
Main heater(H1)
Thermalswitch(TP1)
Sub heater (H2)
120V Not used230V Accessory
DuplexingdriverPCB
ControlpanelCPU PCB
Control panel switch
Accessoriespowersupply PCB
Deck heater (H5)
Mirror heater (H7)
Lens heater (H6)
DC powersupply PCB
Anti-rush currentPCB
Manual feeddoor switch(MSW)
Front coverswitch(SW2)
Main powerswitch
Clutchsolenoid
24V
5V
BDPCB
24V
5V 12V
InverterPCB
CCD/APPCB
A12
V
C
A
B
B
Fuse PCB
12V
C
PotentialcontrollerPCB
High-voltagePCB
Note: Thick lines indicate AC lines.
2-21
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Controlling the Power Supply for the Main Controller
2. State of Power
a. Power Supply Mode
The machine may be in any of the following five modes for its various
power supplies: +3.3-V all-night (3.3 VB), +3.3-V non-all-night (3.3 VA),
+5-V non-all-night (5V), and +24-V:
In both hard sleep and power-off modes, the power supply is not
controlled using software (as by the power supply control port).
In hard sleep mode, the power supply is controlled by the KILL 3.3 (SPO
[2]) port of the CPU.
3. Standby Mode (normal operation)
In standby mode, the machine may be operating or may be ready to operate,
and almost all loads are supplied with power. Not only the main controller
PCB, but also the reader unit, printer unit, and control panel are all ready for
communication/control.
b. Controlling the Power Supply
The main controller PCB controls power supply control mechanisms
except for the power-off mode initiated by turning off the main power
switch.
In each mode, the power supply is controlled using the power supply
control ports PWR1 (1-pin) and PWR2 (2-pin) of the power supply control
connector J1021 on the main controller PCB as follows:
Mode +3.3-V all-night +3.3-V non-all night +5-V non-all night+24-V
Standby Y Y Y Y
Low power Y Y Y N
Soft sleep Y N N N
Hard sleep N N N N
Power supply off N N N N
Mode PWR1 PWR2 Remarks
Standby H(x) H Set at reset
Low power H L
Soft sleep L L
Hard sleep X X KILL3.3=L
Power off X X
(for X, no software control)
2-22
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Controlling the Power Supply for the Main Controller
4. Low Power Mode
In low-power mode, the +24-V power supply remains off. The power con-
sumption of the reader unit and the printer unit are reduced to save power used
by the machine.
a. Shift from Standby Mode (to low power mode)
The shift from standby mode to low-power mode is executed by the
software of the CPU on the main controller PCB (PWR1=H, PWR2=L).
The shift from standby mode to low-power mode is initiated for the
following:
• Low-power mode is selected on the control panel.
• Standby mode continues in excess of a specific time (may be changed
in user mode).
• A shift is specified using a remote user interface (command) from the
parallel port (IEEE-1284) or the network.
b. Return to Standby Mode (from low-power mode)
A shift from low-power mode to standby mode is initiated by the software
of the CPU on the main controller PCB (PWR2=H, PWR1=H).
A shift from low-power mode to standby mode is initiated for the
following:
• The power switch (soft switch) on the control panel is turned on.
• PDL data is received from the parallel port (IEEE-1284) or the
network.
5. Soft Sleep Mode
In soft sleep mode, only the +3.3-V all-night (3.3 VB) power supply remains
on.
The CPU on the main controller PCB is in wait for an interrupt; it turns off the
program, thus saving on power.
This mode is used only in an MFP configuration, in which a network print
option or a PDL print option is installed.
a. Shift from Standby Mode (to soft sleep mode)
A shift from standby mode to soft sleep mode is executed by the software
of the CPU on the main controller PCB (PWR1=L, PWR2=L).
A shift from standby mode to soft sleep mode is initiated for the following:
• The power switch (soft switch) on the control panel is turned off.
• Standby mode continues in excess of a specific time (may be changed
in user mode).
• A shift is specified using the remote user interface (command) from the
parallel port (IEEE-1284) to the network.
2-23
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Controlling the Power Supply for the Main Controller
b. Shift from Low-Power Mode (to soft sleep)
A shift from low-power mode to soft sleep mode is executed by the
software of the CPU on the main controller PCB (PWR1=L, PWR2=L).
A shift from standby mode to soft sleep mode is executed for the
following:
• The power switch (soft switch) on the control panel is turned off.
• Standby mode continues in excess of a specific period of time (may be
changed in user mode).
• A shift is specified using a remote user interface (command) from the
parallel port (IEEE-1284) to the network.
c. Return to Standby Mode (from soft sleep)
A shift from soft sleep mode to standby mode is executed by the software
of the CPU on the main controller PCB (PWR1=H, PWR2=H).
A shift from soft sleep mode to standby mode is executed for the
following:
• The power supply switch (soft switch) on the control panel is turned
on.
• PDL data is received from the parallel port (IEEE-1284) to the
network.
6. Hard Sleep Mode
In hard sleep mode, the CPU itself turns off, leaving a minimum number of
logic circuits on the main controller PCB powered.
This mode is used only in a configuration in which the network print option or
the PDl print option is not installed.
a. Shift from Standby Mode (to hard sleep)
A shift from standby mode to hard sleep mode is executed by the software
(KILL3.3=L) of the CPU on the main controller PCB; the +3.3-V all-night
(3.3 VB) power supply is cut at the start of the main controller PCB,
thereby cutting off the power to almost all elements of the PCB including
the CPU.
A shift from standby mode to hard sleep mode is executed for the
following:
• The power switch (soft switch) on the control panel is turned off.
• Standby mode continues in excess of a specific time (may be changed
in user mode).
• A shift is specified using a remote user interface (command) from the
parallel port (IEEE-1284) to the network.
2-24
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Controlling the Power Supply for the Main Controller
b. Shift from Low-Power Mode (to hard sleep)
A shift from low-power mode to hard sleep mode is executed by the
software (KILL3.3=L) of the CPU on the main controller PCB; the +3.3V
all-night (3.3 VB) power supply is cut off at the start of the main controller
PC, cutting off the power to almost all elements of the PCB including the
PCU.
A shift from low-power mode to hard sleep mode is initiated for the
following:
• The power switch (soft switch) on the control panel is turned off.
• Standby mode continues for a specific period of time (may be changed
in user mode).
• A shift is specified using a remote user interface (command) from the
parallel port (IEEE-1284) to the network.
c. Return to Standby Mode (from hard sleep)
In hard sleep mode, auto return to standby by means of an external event is
not possible; standby mode may be resumed by turning off/on the power
supply switch (soft switch) on the control panel or the main power switch.
The operation upon return is exactly the same as the operation at power-
on.
7. Power-Off Mode
In this mode, the main power switch remains off. To return from power off-
mode, the main power switch must be turned on (at which time standby mode
will start automatically).
2-25
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Original Exposure System
1. Turning On and Off the Scanning Lamp
a. Turning On and Off
The machine's scanning lamp is a xenon lamp.
The scanning lamp is turned on/off in response to the drive signal
(LAMP_ON) from the CPU of the reader controller PCB. When the signal
is generated, the inverter PCB uses the activation control circuit to
generate a high-frequency voltage using the drive voltage (+24 V) from
the reader controller PCB to control the activation of the xenon lamp.
b. Detecting an Error
If an error occurs (e.g., output release, short-circuit, leakage) in the
inverter circuit, the error signal (INV_ERR*) is sent to the controller
circuit. An error relating to the lamp (low intensity, activation failure) is
identified as an activation error when the lamp is first turned on.
Figure 2-301
Inverter PCB
Xenon lampActivationcontrolcircuit
J5101 J5007+24V
Reader controller PCB
1
3
4
2
5
3
2
4
LAMP_ON
INV_ERRLA2
CPU
Xenon Lamp
When a high-frequency voltage is
applied across terminals of a xenon
lamp, electric discharge occurs within
the xenon gas, causing the fluorescent
material inside the lamp to emit light.
2-26
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
The machine's original size detection
combines reflection type sensors with
CCDs, so that it requires fewer
sensors compared with the existing
machines (ultimately resulting in lower
cost of production).
Identifying the Size
1. Outline
The machine identifies the size of an original based on the measurements
taken of the intensity at specific points using reflection type sensors and CCD:
Main scanning direction: CCD (4 points for AB-configuration)
Sub scanning direction: reflecting photosensor (1 location)
2. Points of Detection
For main scanning direction, the No. 1 mirror mount is moved to the follow-
ing CCD original detection points; the intensity at each location is measured
to identify the size of an original. For sub scanning direction, on the other
hand, original sensors (fixed in position) are used to identify the size of an
original.
3. Mechanism of Detection
The machine identifies the size of an original in the following two steps:
1. Detecting External Light (main scanning direction only)
While keeping the scanning lamp off, the CCD level at each point of
detection is measured in main scanning direction. The absence of an
original is identified if external light is detected, thereby enabling the
identification of the width of an original.
2. Detecting the Output Level of the Sensors
The scanning lamp is turned on, and the CCD level of each point of
detection in main scanning direction is measured. The LEDs of the
reflecting type photosensors in sub scanning direction are turned on to
measure the outputs of the sensors.
The size of the original is identified based on specific combinations of the
states of the sensors. For specific operations, see the next page.
Figure 2-302
Original sensor
Point of originaldetection 3Point of originaldetection 4
Point of originaldetection 1Point of originaldetection 2
B5
A4
B5R
A4R
B4
A3
CCD point of original detection
2-27
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Identifying the Size
a. Book Mode (1 original; with ADF open)
Original (A4R)
Point of original detection
Copyboard glass
Xenon lampOriginal sensor
Reader unit
Copyboard coverPoint of original detection 1
Point of original detection 2
Point of original detection 3
Point of original detection 4
(external light)
(external light)
1. The machine is in wait sate.
No. 1 mirror mount: at home position
Xenon lamp: off
Original sensor: invalid
2. The copyboard cover is opened.
A check is made for external light in main
scanning direction.
No. 1 mirror mount: moves to point of detection
Xenon lamp: off
Original sensor: invalid
3. An original is placed.
The external light will be blocked if there is an
original; therefore, detection of external light is
identified as indicating the absence of an original.
In the case of the example cited, B5, B4, A4, and
A3 are excluded at this point.
4. The Start key is pressed.
The original size detection is started in response
to a press on the Start key. For main scanning di-
rection, the xenon lamp is turned on, and a check
is made for reflected light using the CCD (4
points); for sub scanning direction, the original
sensors become ready for detection. The absence
of reflected light is identified as the absence of an
original.
The size of the original is identified based on spe-
cific combinations of the results of detection.
Figure 2-303
AB-Configuration
Original size
Original sensor
CCD point of detection
A3
B4
A4R
A4
B5
B5R
None
1 2 3 4
:Reflection detected. :Reflection not detected.
2-28
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Identifying the Size
Original (A4R)
Point of detection
Point of detection 1Point of detection 2Point of detection 3Point of detection 4
Copyboardglass
Xenon lampOriginal sensor
30˚
Reader unit
Copyboard cover
(external light)
(external light)
b. Book Mode (1 original; with ADF closed)1. The machine is in wait state.
No. 1 mirror mount: at home position
Xenon lamp: off
Original sensor: invalid
2. The copyboard cover is opened.
A check is made for external light in main scan-
ning direction.
No. 1 mirror mount: to point of detection
Xenon lamp: off
Original sensor: invalid
3. An original is placed.
The external light will be blocked if there is an
original; therefore, detection of external light is
identified as the absence of an original.
In the case of the example cited, B5, B4, A4, and
A3 are excluded at this point.
4. The copyboard cover is closed.
When the copyboard cover is brought down to
30°, the copyboard cover sensor identifies the
"closed" state, starting detection of the size of an
original.
For main scanning direction, the xenon lamp is
turned on, and the reflected lamp is checked by
the CCD (4 points); for sub scanning direction,
the original sensor becomes ready for detection.
5. The copyboard cover is closed fully.
The changes in the output level of each sensor is
monitored until the copyboard cover is fully
closed. The absence of a change in the level is
identified as the absence of an original.
The size of an original is identified based on the
changes in the level at five points. (See the table.)
6. The machine changes into wait state (waiting for
a press on the Start key).
The No. 1 mirror moves to home position, and
waits for a press on the Start key.
2-29
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Identifying the Size
Figure 2-304
AB-Configuration
Original size
Original sensor
CCD point of detection
A3
B4
A4R
A4
B5
B5R
None
1 2 3 4
:Change absent. :Change present.
2-30
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Image Processing in the Reader Unit
1. Functions of the Image Processing Mechanism
The image processing mechanism of the reader unit has the following main
functions:
The following block diagram shows the relationship among the functions re-
lated to image processing.
Figure 2-401
The functions of the PCBs related to image processing are as follows:
Item Description
CCD (image sensor) Number of lines: 1
Number of pixels: 7,500
Size of pixel: 4.7 × 4.7 µm
Shading correction Shading adjustment: in service mode
Shading correction: for each copy
Auto density adjustment (AE) executed for each line in main scanning
direction
CCD/AP PCB
Reader control PCBCCD
A/Dconver-sion
Shading processing
Auto density correction (AE)
Analogimageprocessing
Analog image processing block
Controller unit
Digital image processing
PCB Description
CCD/AP PCB Drives the CCD, performs analog image process
ing, performs A/D conversion
Reader controller PCB Performs shading correction, performs auto
density adjustment (AE)
2-31
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Image Processing in the Reader Unit
2. Analog Image Processing
Analog image processing is performed by the CCD/AP PCB, and consists in
the following:
1. CCD drive
2. CCD output gain correction, offset correction
3. CCD output A/D conversion
The following block diagram shows functions related to analog image pro-
cessing.
Figure 2-402
CCD
Analogsignal processing block
• Gain correction• Offset correction
AP-LD
A/D conversion
A/Dconversion
Analogimage signal
Digital image signal
CCD/AP PCB
CCDdriver control
ReadercontrollerPCB
8
J6002
J6001
J5003
J5002
Even-number pixelOdd-number pixel
Even-numberpixel
Odd-number pixel Digital image signal
8
CCDcontrol signal
3489
1017
1221:
2426:
2931:
3436:
39
3489
1017
1221:
2426:
2931:
3436:
39
14
A24VA5V
14
Gain/offset correction data
2-32
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Image Processing in the Reader Unit
3. Digital Image Processing
a. Functions
Digital image processing is performed by the reader controller PCB, and
consists in the following:
1. Shading correction
2. Auto density adjustment(AE)
The following block diagram shows the functions related to digital image
processing:
Figure 2-404
b. Edge Gain Correction
The intensity at the edges of the scanning lamp is relatively lower than the
intensity at the middle. During shading, the edge gain correction plate
(gray) mounted at the edge of the read position is read in advance, and a
gain is computed so that the intensity will be a specific value for use to
correct the data representing the edges, affected by differences in
intensity.
Figure 2-403
Gain/offset correction data
EEP-ROM
SRAM
CPU
Shading correction
Auto density correction (AE)
Even-number pixel digital image signal
CCD/APPCB
Reader controller PCB
8
Odd-number pixel digital image signal
8
Even-number pixel
8
Odd-number pixel
8
Target value
J6002 J5003
J5004
3489
101712
21:
2426:
2931:
3436:
39
3489
101712
21:
2426:
2931:
3436:
39
Digital image signal
A2123252729313335
B2123252729313335
pixel 0
pixel 7500
Main scanning direction
Edge gains correction plate
Standard white plate (for shading)
Copyboard glass
pixel 0 pixel 7500 pixel 0 pixel 7500
2-33
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Laser Exposure System
1. Construction of the Laser Exposure System
The machine's laser exposure system consists of the following components.
A laser scan is made by a small-diameter 12-facet polygon mirror (designed for high-speed, low-power, low noise),
a wide-angle lens, and 1-beam laser.
Unlike existing machines, the machine's laser beam is directed to areas of an image on the photosensitive drum that
represent white areas (charged to a positive potential), thus forming a latent static image.
Figure 2-501
2. Comparison with the GP605 (laser exposure system)
12-facet polygon mirrorLaser unit
Collimator lens
Imaging lens 3Cylindrical lens
BD mirror
Laser mirror 2
Laser mirror 3
Laser mirror 4
Laser mirror 1
Photosensitive drum
BD PCB
Imaging lens 2
Imaging lens 1
Item Specifications
E82/72 GP605
Process speed 265 mm/sec 300 mm/sec
Laser beam 1 beam 2 beams
Polygon mirror circumcircle diameter 29 mm 65 mm
Polygon mirror facet 12 facets 8 facets
Polygon mirror revolution 31,000 rpm (approx.) 27,000 rpm (approx.)
Laser wave length 655 nm 680 nm
Laser rated output 35 mW 5 mW
Laser mirror 3 mirrors 1 mirror
2-34
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Laser Exposure System
3. Construction of the Laser Exposure System
The laser driver circuit is used to drive the semiconductor laser using the laser
drive signal (LD) from the DC controller PCB, and its functions include the
following:
1. Turning on and off the laser.
2. Controlling the intensity of the laser. (APC control)
3. Controlling the intensity of the laser to suit the drum surface potential.
The following signals and devices are associated with the laser exposure
mechanism:
1. Laser Drive Signal
2. Laser Activation Signal for Sampling
It turns on the laser for sampling the intensity for activation (image expo-
sure) for each single scan.
3. Laser Activation Enable Signal
It goes '0' when the laser is ready to turn on after the Start key is pressed.
4. Laser Write Start Signal
It starts laser writing when paper reaches the laser write start sensor (PS28)
mounted in front of the registration roller.
5. Intensity Monitor
It monitors the intensity of the laser when it is turned on for sampling, and
feeds back an appropriate value to the laser drive circuit.
6. Laser Output Control Signal
It controls the output so that the feedback value and the reference value
from the EEPROM are identical.
7. Laser Intensity Ready Signal
It goes '1' when the laser intensity is as specified. If the laser intensity is not
as specified when it is turned on for sampling, the condition will be identi-
fied as an error.
8. Laser Intensity Reference Signal
It is the laser activation reference value determined by the potential control
signal from the EEPROM.
The machine adjusts its laser power
automatically.
2-35
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Figure 2-502
J117
J113
J121
LD(+) [1]
LHTRD
LD-DT [8]
LD-EN [3]
LSH [2]
LD(-) [1]
GND
GND
LTH
L-RDY [7]
LWRPD [4]
Laser driver PCB
DC controller PCB
J2502[6]
J2501 J2503
Laser unit
Laser
Laser heater (H)
Laser thermistor (TH)
Intensity monitor [5]
Laser drive circuit
EEPROM
3
2
1
B5
20
19
18
16
15
14
12
11
10
8
7
3
2
1
17
1
2
3
5
6
7
9
10
11
13
14
18
19
20
4
43
2
1
2
1
GND
GND
GND
GND
GND
5V
24V
3.3V
Laser write start sensor (PS28)
Laser Exposure System
2-36
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Image Formation
1. Construction of the Image Formation System
The construction of the image formation system is as follows, more or less
identical to that of the NP6251.
2. Major Changes from the NP6251
*:Using digital processing, the surface
layer and photosensitive layer most
appropriate to laser exposure are
used.
**:The extra-strength polishing pad is
intended exclusively for the brown
wire. Do not use it for gold-plated
wires.
Developing assembly
Dust collecting roller
Pre-transfer charging assembly
Transfer guideTransfer charging assembly
Separation charging assembly
Cleaner unit
Pre-exposure
Primary charging assembly
Potential sensor
Item Description Remarks
Photosensitive drum Digital* New drum
Charging wire Brown wire (all) Highly durable
Wire cleaner pad Strengthened polishing type** Primary/transfer only
Potential control Printer control added
APC correction APC correction added
Density adjustment Density adjustment according to mode
Figure 2-601
2-37
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Image Formation
3. Controlling the Potential
a. Outline
The following functions are associated with potential control:
• Controlling the potential for the copier/printer.
• Correcting APC (auto power control)
• Controlling primary current (VD)
• Controlling laser output (VL)
• Determining DC bias (DC)
Figure 2-602
Primary charging wire
Potential sensor
Laser light
Developing cylinder
DC
con
trol
ler
PC
B
Lase
r dr
iver
PC
BH
igh-
volta
ge P
CB
Pot
entia
l con
trol
P
CB
Control signal
Control signal
Det
ectio
n si
gnal
J103 J3
1234B1
B2B3B4
0V
24V
POT-DTPOT-ON
[1][2]
Correction of developing bias (DC)
Correction of laser output
Correction of primary current value
[1] Drum surface potential measurement.
[2] When '1', the potential sensor turns on.
2-38
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
b. Controlling the Potential for the Copier/Printer
The machine's potential control consists in printer potential control and
copier potential control. In printer potential control, the target potential is
set to VD = 420 V, ensuring the reproduction of line width. In copier
potential control, on the other hand, the target potential is set to VD = 370
V, limiting the consumption of toner.
The following is the basic sequence of operations associated with potential
control:
10-, 60-min after main power
switch ON
To accommodate changes in the
sensitivity and charging effi-
ciency caused by changes in the
drum temperature.
At the start of the first job; 10 and
60 min after the main power
switch is turned on.
off: 0 sec
reduced mode: about 5 sec
standard mode: about 10 sec
off/reduce mode/standard mode
OFF
Item
Purpose
Operating
condition
Operating
length
Service
mode
Default
Warm-up
To control the potential for
copier/printer mode.
To set ratings related to
copier/printer mode.
The fixing temperature when
the main power switch is
turned on is 150° or less.
About 10 sec during warm-up
May be enabled/disabled.
on (potential control of both
copier and printer modes)
Image Formation
2-39
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
c. Controlling the Potential (warm-up)
d. Potential Control 10 Min and 60 Min from Power-On (main power
switch)
The following three types are used according to the settings selected in
service mode:
1. OFF (default), in which no potential control is performed.
2. Reduced mode (selected in service mode), in which the period is
reduced by making an estimate of the potential used in the other
control period after potential control.
3. Standard mode, in which two types of potential control (copier and
printer) are performed consecutively.
Figure 2-603
WMUPRWMUP STBY
Fixing assembly temperature 195˚C 200˚C
Drum motor (M1)
Primary charging
Laser
Potential sensor
Printer potential control [1] Copier potential control [2]
VD VD VD VL1 VL2VL1 VD VD VD VL1 VL2VL1
[1] Copier potential control (measures the potential; eight times for VD, eight times for VL1, once for VL2).
[2] Printer potential control (measures the potential; 8 items for VD, 8 items for VL1, and once for VL2).
Image Formation
2-40
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
e. Reduced Mode (selected in service mode)
One type of potential control is performed while making an estimate of the
potential used in the other control period.
During the warm-up period after power-on, the primary current, laser
output, and developing bias DC value are determined for copier and
printer modes, and ratios are stored.
When the Start key is pressed after the power is first turned on, both copier
potential control and printer potential control are executed; when the Start
key is pressed for a second time, however, only one of two is executed
(copier or printer potential control), and an estimate is computed for the
other using the data obtained when control (for both) was first executed.
The following is the sequence of operations used in reduction mode:
Image Formation
Figure 2-604
Figure 2-605
f. Standard Mode (selected in service mode)
Potential control for copier and printer modes are performed
consecutively.
Copier potential control
Printer potential control
Fixing assembly temperature: 195˚C(end of fixing assembly warm-up)
Control panel power switch ON
Start key ON Potential control Potential control
Start key ON
10 sec to less than 60 min 60 min and later
Potential control for copier and printer during first job
Potential control for copier and printer for first job
Sets control ratings for copier and printer
Potential control for copier
Potential control for printer
Fixing assembly temperature: 195˚C(end of fixing assembly warm-up)
Control panel power switch ON
Start key ON Potential control Potential control
Start key ON
10 min to less than 60 min 60 min and later
Estimates other control value based on potential control for copier and printer
Estimates other control value based on potential control for copier and printer
2-41
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Image Formation
g. APC Correction
The VL potential changes becuase of changes in the laser output over time
and in continuous printing. The laser output control value is corrected to
maintain the VL potential to a specific value.
The following types of correction are performed for the laser output
control value:
[sheet-to-sheet APC control]
Purpose: The potential after a laser output is measured between sheets to
correct the laser output control value, thereby maintaining the
VL potential to a constant value without lowering productivity
during a continuous job.
Timing: It is executed between the first and second sheets one minute after
the start of a continuous printing job.
Potential measurement: The potential is subject to irregularities around the
drum; the drum is divided into eight peripheral areas, taking
measurements at least once in each area, and the average drum
potential of the eight measurements is computed. Using the
result, a correction value for the laser output is obtained. If
measurement is not possible (made difficult because
measurements must be taken between sheets), it is continued for
a further one minute.
Figure 2-606
[Initial Rotation APC Control]
Purpose: The drum potential is measured to correct the laser output control
value, thus correcting the changes in the VL potential of the laser
output caused by changes in temperature after a long time.
Timing: It is performed during initial rotation of the first job executed 60
min after the end of a job.
Potential measurement: The drum is divided into eight peripheral areas,
taking measurements at least once in each area, and the average
drum potential of the eight measurements is computed. Using the
result, a correction value for the laser output is obtained.
Potential control for copier
Potential control for printe
Main power switch ON
Fixing assembly temperature: 195˚C(end of fixing assembly warm-up)
Control panel power switch ON
Start key ON
Correction of laser output
1 min later 1 min later
Continuous
Correction of laser output
2-42
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Image Formation
[Last Rotation APC Controller]
Purpose: If intermittent printing is repeated at short intervals, the absence
of potential control will change the VL potential of the laser out-
put because of changes in temperature. For correction, a correc-
tion value is obtained for laser output control used during last
rotation executed for the last job.
Potential measurement: The drum is divided into eight peripheral areas,
taking measurements at least once in each area, and the average
drum potential of the eight measurements is computed. Using the
result, a correction value for the laser output is obtained.
2-43
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Image Formation
h. Density Adjustment in Each Mode
In the following modes, the developing bias determined as a result of
potential control is corrected, and is used as the target value for each mode
for density adjustment.
1. Density Adjustment in Memory Print Mode
The copy density is lowered (made lighter) by lowering the developing
bias; however, too low a bias will make the image fuzzy, while too
high a density will make the image foggy.
In the uppermost and lowermost range of the developing bias, changes
in the developing bias and image processing (binary-binary
processing) are used when processing images for density.
Purpose: It is performed to obtain a degree of density suited to the
needs of the user.
Method of correction: The developing bias and image processing (bi-
nary density processing) are used according to the setting of
the F value. (For details, see the descriptions of image pro-
cessing by the main controller.)
2. Density Adjustment in Printer Mode
The print density is increased (made darker) by raising the developing
bias; however, too high a developing density will make the images
foggy. In the lowermost range of the developing bias, changes in the
developing bias and image processing (thickening) are used to process
images for density.
Purpose: It is performed to obtain a degree of density suited to the
needs of the user.
Method of correction: The developing bias and image processing
(thickening) are used to suit the setting of the F value. (For
details, set the descriptions of image processing by the main
controller PCB.)
F value Developing DC bias Shift Thickening Image density(V) (V)
1 203 48 No Darker2 190 35 No3 179 24 No4 167 12 No5 155 0 No6 138 -17 No7 122 -33 No8 105 -50 No9 105 -50 Yes Lighter
F value Developing DC bias Shift Image processing Image density(V) (V)
1 240 60 Yes Darker2 220 40 No3 180 0 No4 140 -40 No5 120 -60 Yes Lighter
2-44
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Pickup/Feed System
The machine's manual pickup
assembly uses the feed roller (not the
pickup roller) to pick up paper.
1. Manual Pickup
The presence/absence of paper on the manual feed tray is detected by the
manual feed paper sensor (PS23).
The manual forwading roller is operated by the drive from the main motor
coming through the pickup clutch (CL4). When the clutch is engaged, the
manual feed holding plate solenoid turns on to lift the manual feed holding
plate; as a result, the gear of the pickup roller receives the drive of the main
motor, causing the manual feed pickup roller to make a single rotation to
move the paper.
As the manual feed roller rotates, the paper is moved all the way to the regis-
tration roller.
Figure 2-701
M1
CL2
CL4
SL8
Reg
istr
atio
n ro
ller
clut
ch d
rive
sign
al
Man
ual f
eed
pick
up c
lutc
h dr
ive
sign
al
Mai
n m
otor
driv
e si
gnal
Man
ual f
eed
hold
ing
plat
e re
leas
ing
sole
noid
driv
e si
gnal
Manual feed forwading rollerRegistration roller
Feed roller
Separation roller
Manual feed holding plate
Tray
Sheets
DC controller PCB
2-45
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Pickup/Feed System
2. Double-Sided Print
a. Moving Paper to the Duplexing Reversal Unit
Figure 2-702
PS36
PS38
PS37
PS35PS4
PS46
Reversing flapper
Delivery flapperPS29
M14
SL8 SL5
Rev
ersi
ng fl
appe
r so
leno
id d
rive
sign
al
Del
iver
y as
sem
bly
stat
iona
ry ja
m d
etec
tion
sign
al
Del
iver
y fla
pper
sol
enoi
d dr
ive
sign
al
Inte
rnal
del
iver
y se
nsor
driv
e si
gnal
Cla
w ja
m d
etec
tion
sign
al
Rev
ersa
l det
ectio
n si
gnal
2
Reg
istr
atio
n de
tect
ion
sign
al
Rev
ersa
l mot
or d
rive
sign
al
DC controller PCB
2-46
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Pickup/Feed System
b. Re-Pickup
Figure 2-703
M18 M25
PS38
PS37 PS24
PS35PS29
PS30
PS46
Duplexing outlet roller
Duplexing feed right roller
Feeding large roller
PS31PS34
Duplexing feeding left rollerCurling roller
PS28
M14
SL8
M29
Rev
ersa
l fla
pper
sol
enoi
d dr
ive
sign
al
Rev
ersa
l det
ectio
n si
gnal
1
Rev
ersa
l mot
or d
rive
sign
al
Rev
ersa
l mot
or d
rive
sign
al 2
Dup
lexi
ng fe
ed le
ft m
otor
dr
ive
sign
al
Dup
lexi
ng re
gist
ratio
n si
gnal
Dup
lexi
ng p
icku
p se
nsor
Dup
lexi
ng fe
ed ri
ght m
otor
dr
ive
sign
al
Dup
lexi
ng d
ispl
aced
regi
stra
tion
dete
ctio
n si
gnal
Ver
tical
pat
h du
plex
ing
feed
m
otor
driv
e si
gnal
DC controller PCB
2-47
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Pickup/Feed System
c. Operations
The feed path for the first side of a double-sided print is configured when
the delivery flapper solenoid (SL5) turns off and the reversing flapper
solenoid (SL8) turns on, thereby shifting up the delivery flapper and the
reversing flapper.
When the first side has been printed and the leading edge of the paper
reaches the delivery assembly stationary jam sensor (PS48), the reversing
flapper solenoid turns on.
When the delivery assembly stationary jam sensor (PS48) has turned on
and the paper reaches a specific position, the reversal motor ((M14) starts
to rotate to move the paper to the duplexing reversal unit.
When the paper has reached the reversal sensor 2 and reaches a specific
location, the reversal motor stops rotation and the paper is kept in wait in
the reversal assembly.
When the reversal motor (M14) starts to rotate, this time in reverse, the
paper in the reversal assembly is moved toward the duplexing wait
position by the work of the duplexing feed left/right roller, which receives
drive from the duplexing feed left/right motor (M29/M18).
Paper is butted against the duplexing feed right roller so that it arches,
thereby being made free of the skew. Horizontal registration is executed
during a 100-msec stop period after the paper is made to arch.
Thereafter, the duplexing feed left/right motor (M29/M18) starts to rotate,
moving the paper to the duplexing wait position.
d. Through Path Operation
After fixing, the paper is moved to the reversal unit using the delivery
flapper and the reversing flapper; the paper is then moved to the duplexing
feed assembly, and this whole operation is called "through path"
operation.
The machine reorders images in its memory for printing, not necessarily
printing the originals in their initial order and, ultimately, reducing the
time paper is kept in wait and increasing the speed of double-sided
printing.
As many as two sheets of paper may simultaneously exist between the
registration sensor and the duplexing paper sensor.
The machine's duplexing mechanism
does not "switch back" paper (unlike
the GP605), but uses a large-sized
roller to turn over paper.
2-48
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Fixing System
1. Outline
The following figure shows the major components of the fixing system:
Figure 2-801
Fixing upper roller
Fixing lower roller
PS4
Inte
rnal
del
iver
y de
tect
ion
sign
al
Cla
w ja
m p
aper
det
ectio
n si
gnal
Web
leng
th
dete
ctio
n si
gnal
Mai
n th
erm
isto
r sig
nal
Mai
n he
ater
driv
e si
gnal
Sub
hea
ter d
rive
sign
al
Main thermistor (TH1)
AC power supply
Web guide plate
Fixing web
PS45
PS52
Sub
ther
mis
tor s
igna
l
Mai
n he
ater
det
ectio
n si
gnal
Sub
hea
ter d
etec
tion
sign
al
Sub thermistor (TH2)
AC driver PCB
DC controller PCB
Thermal witch(TP1)
2-49
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
2. Temperature Control
The machine's fixing temperature is controlled as follows:
Fixing System
Description
When the fixing roller is 75°C or less at
power-on.
When the rated voltage is 100 V or 120/
230 V.
If the internal temperature read by the
environment sensor is 18°C or more, H
mode; 12° to 18°C, M mode; less than
12°C, L mode.
To lower the print start temperatures for
reduced print time; for E82, 4 min or
less; for E72, 5 min or less.
To increase the fixing temperature for
switching down sequence by 10°C.
To lower the fixing temperature for
switching down sequence by 10°C.
To use a fixing temperature of 203°C or
higher at the start of printing (for M/L
mode after power-on, 211°C) for im-
proved fixing.
To hold printing until the fixing tempera-
ture is 180°C for special paper.
To prevent fixing faults during continu-
ous printing.
To prevent fixing faults of halftone
images during continuous printing.
To prevent overheating at edges of the
fixing roller when small-size paper is
fed.
When transfer paper is present or absent
in the fixing/feeding unit when a jam
occurs.
To lower the control temperature from
normal to reduce power consumption.
Item
[1] power-on
sequence
[2] site-specific
sequence
[3] environment
temperature
sequence
[4] wait time reduce
mode
[5] priority on fixing
mode
[6] priority on produc-
tivity mode
[7] thick paper mode
(120/230V model
only)
[8] special paper
mode
[9] down sequence
(text mode)
[10] down sequence
halftone mode
(non text mode)
[11] edge overheating
prevention mode
[12] jam recovery
mode
[13] power save mode
Mode
Normal
Service
mode
Others
2-50
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Soft Counters
1. Outline
The machine is equipped with soft counters keeping counts of prints. The
counts are indicated in response to a press on the Check key on the control
panel.
The soft counters consist of a total of 16 modes, eight each for large-size and
small-size sheets.
The flowing are modes of the basic counters:
*1:At time of shipment, B4 or smaller.
To count B4 as an L-size sheet, make
a change in service mode.
*2:The machine does not have a fax
function, and does not count printouts
of messages received by fax.
*3:The counter display may be
changed or disabled in service mode
(however, the setting of counter 1
cannot be changed).
Copier/printer mode Large-size Small-size*1
Local copy A B
PDL print C D
Box print E F
Remote copy print G H
Fax reception print*2 I J
Report print K L
Double-sided print M N
Scan O P
The following are soft counters grouped according to destination (at time of
shipment):
Counter Description Default display Default switching*3
Counter 1 Total (A to L) ON Fixed.
Counter 2 Total large (ACEGIK) ON May be changed.
Counter 3 Copy 1 (ABGH) ON May be changed.
Counter 4 Copy 1 large (AG) ON May be changed.
Counter 5 Print 1 total (CDEF) OFF May be changed.
Counter 6 Fax total (IJ) OFF May be changed.
Modes supported by the basic counter are indicated within parentheses.
Cha
pter
3 M
aint
enan
ce a
nd In
spec
tion
3-1
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Maintenance and Inspection
1. Periodically Replaced Parts
Some parts of the machine must be replaced on a periodical basis to maintain a specific level of performance; they
may be free of external damage or appearance, but can affect the performance once they fail.
It is best to plan the replacement so that it coincides with scheduled servicing.
a. Reader Unit
The reader unit does not have parts that need periodical replacement.
b. Printer Unit
No. Part name Part No. Q'ty Life (sheets) Remarks
1 Primary/pre-transfer/transfer/separation charging wire FB4-3687 AR 500,000 (*)
2 Primary grid wire FY1-0883 AR 500,000
3 Thermistor FH7-7529 1 500,000
4 Sub thermistor FG5-8812 1 500,000
5 Thermal switch FH7-7154 1 1,000,000
*: The old-type wire (gold-plated) must not be used. After replacing the wire, be sure to execute wire cleaning five
times.
3-2
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Maintenance and Inspection
2. Consumables and Durables
Some parts of the machine may require replacement once or more over the period of warranty of the machine because
of wear or damage. Replace them as necessary by referring to the guide below.
a. Reader Unit
The reader unit does not have parts that are classified as durables.
b. Printer Unit
No. Part name Part No. Q'ty Life Remarks
1 Pickup/feed roller (manual feed tray) 1 120,000*
2 Separation roller (manual feed tray) 1 120,000*
3 Pickup roller 8 250,000* Use 2 for each holder.
4 Pickup/feed roller (deck, cassette) 8 250,000* Use 2 for each holder.
5 Separation roller (deck, cassette) 4 250,000*
6 Cleaner separation claw 3 500,000
7 Primary charging wire cleaner 1 2 500,000 Strengthenedpolishing type
8 Primary charging wire cleaner 2 2 500,000 Strengthenedpolishing type
9 Transfer charging wire cleaner 1 1 500,000 Strengthenedpolishing type
10 Transfer charging wire cleaner 2 1 500,000 Strengthenedpolishing type
11 Separation charging wire cleaner 1 500,000
12 Pre-transfer charging wire cleaner 1 500,000
13 Pre-transfer charging assembly scraper 1 500,000
14 Fixing upper roller 1 500,000
15 Fixing lower roller 1 500,000
16 Fixing web 1 500,000
17 Insulating bush (front, rear) 2 500,000 Replace simulta-
neously with fixing
upper roller.
*: Actual sheets processed; may be checked in service mode (COPIER>COUNTER>DURABLE).
3-3
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Maintenance and Inspection
No. Part name Part No. Q'ty Life Remarks
18 Delivery upper separation claw 6 500,000
19 Delivery lower separation claw 2 1,000,000
20 Developing cylinder 1 1,000,000
21 Developing assembly roll 2 1,000,000
22 Cleaning blade 1 1,000,000 Use both edges;
500,000 for each.
Apply toner upon
replacement.
23 Primary charging assembly 1 1,000,000
24 Transfer/separation charging assembly 1 1,000,000
25 Pre-transfer charging assembly 1 1,000,000
c. Side Paper Deck
No. Part name Part No. Q'ty Life Remarks
1 Pickup roller FB4-2033 2 250,000
2 Feed roller FB4-2034 2 250,000
3 Separation roller FB2-7777 1 250,000
3-4
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Maintenance and Inspection
3. Scheduled Servicing Table
a. Reader Unit
b. Printer Unit
: Clean : Replace ×: Lubricate : Adjust : Inspect
Copyboard glass
No. 1 through No. 3 mirror
Dust-proof glass
Light reflecting plate
Standard white plate
Scanner cable
Scanner rail
Remarks
For first 250,000 sheets, perform inspection.
Use silicone oil S20 (FY9-6011).
PartUnit
Optical system
Optical path
×
every250,000
Installa-tion
every500,000
every750,000
every1,000,000
Interval
: Clean : Replace ×: Lubricate : Adjust : Inspect
Grid wire (primary)
Roller electrode
Ozone filter
Dust-proof filter
Charging assembly shield plates
Primary stray toner prevention sheet
Remarks
Remove dust from filter surface.
Remove dust from filter surface.
Perform wire cleaning five times after replacement.
Charging wire (primary, pre-transfer, transfer/separation)
PartUnit
Externals/controls
Charging
every250,000
Installa-tion
every500,000
every750,000
every1,000,000
Interval
3-5
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Maintenance and Inspection
Remarks
Developing cylinder
Developing assembly roll
Anti-stray developer sheet
Inlet guide
Web
Oil receptacle
Thermistor
Sub thermistor
Thermal switch
Feed belt
Feed rollers
Transfer guide
Side scraper
every250,000
Installa-tion
every500,000
every750,000
every1,000,000
Interval
Photosensitive drum
Electrode of slip ring(for drum heater)
Use alcohol (C-17) and drum cleaning powder (CK-0429);
Use alcohol (C-17) to clean the following:1. Electrode2. Protrusions of electrode Apply IMI (FY9-6008) to the following:• Static brush
PartUnit
Photosensitive drum
Developing assembly
Delivery assembly
Cleaner
Fixing assembly
Inspect and remove, as necessary.
Separation claw (upper, lower)
Toner receptacle(front/rear)
Waste toner collection
Pickup/feeding assembly
Waste toner box
Registration roller (upper, lower)
×
3-6
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Soft Counters
1. Outline
The machine is equipped with soft counters used to keep count of the number
of prints made, and readings are indicated in response to a press on the Check
key on the control panel.
The soft counters consist in 16 types of modes, eight each for small-sized and
large-sized sheets.
The following are the modes of the basic counter:
The following are the specifics of the soft counters effective at time of ship-
ment.
*1: At time of shipment, B4 or smaller.
To count B4 as an L-size sheet, make
a change in service mode.
*2: The machine does not have a fax
function.
Copier/printer mode Large-size Small-size*1
Local copy A B
PCL print C D
Box print E F
Remote copier print G H
Fax reception print*2 I J
Report print K L
Double-sided print M N
Scan O P
Counter Description Default display Default switching*3
Counter 1 Total (A though L) ON Fixed
Counter 2 Total large-size (ACEGIK) ON May be changed.
Counter 3 Copy 1 (ABGH) ON May be changed.
Counter 4 Copy 1 large-size (AG) ON May be changed.
Counter 5 Print 1 total (CDEF) OFF May be changed.
Counter 6 Fax total (IJ) OFF May be changed.
The modes supported by the basic counter are indicated within parentheses.
*3: The counter display may be
changed or disabled in service mode
(however, the stetting of counter 1
cannot be changed).
3-7
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Soft Counters
2. Mechanism
As in the case of the CP660 and the CLC1150/1130, the machine uses a soft
counter (CLC1150/1130 type) as a charging counter.
The main controller PCB keeps count of copies/prints based on information
from the reader controller PCB (RCON) and the DC controller PCB (DCON).
The counter information may be checked from the machine’s control panel.
3. Construction of the Soft Counter
a. Construction of Soft Counter-Related Memory
To ensure the reliability of the counters, the following three types of
memories are used:
a-1 SRAM (main controller PCB)
This is a means of backup also used in other models. The SRAM is
soldered to the main controller PCB, and its data is backed up by the
battery on the main controller PCB.
It has two areas for counter information and one area for the serial number
of each specific machine.
a-2 Parallel EEPROM (counter memory PCB)
It is a non-volatile read/write memory which does not require a battery.
It is soldered to the counter memory PCB, which is screwed to the main
controller PCB.
It has one area for counter information, and it also maintains the serial
number information of each specific machine.
Some of the information contained in
this book relating to soft counters are
highly confidential in nature. Be sure
to control it according to the policies of
the Service Department.
Counter Memory PCB (EEPROM)
The counter memory PCB (parallel
EEPROM) is connected by way of a
connector (parallel I/F) on the main
controller PCB.
Main controller PCB
CPU Counter reading/serial No. matching
Counter readingmemory
Primarybattery
Parallel EEPROM
SRAM
Counter memory PCB Serial number PCB
Serial No.
Serial EEPROM
Serial No.
Counterreadingmemory
Counterreadingmemory
Serial No.
Figure 3-101 Construction of Soft Counter-Related Memory
3-8
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Soft Counters
a-3 Serial EEPROM (serial number PCB)
It is a non-volatile memory which does not require a battery.
The serial EEPROM on the serial number PCB found to the rear of the
machine’s hard disk is used to maintain the serial number information of
each specific machine.
The machine’s print speed is switched based on the information from the
serial number PCB, and the PCB is mounted in a location that prevents
easy replacement.
b. Control Mechanism
When a count is incremented and when the machine in standby, a
periodical check is made on counter readings with reference to the serial
number of each specific machine and counter readings.
Serial Number
serial EEPROM data
SRAM data
parallel EEPROM data
Counter readings
SRAM data (2 areas)
parallel EEPROM data
If a mismatch is found in the data items, the memory area in question may
be corrected according to the principle of majority rule or a service call
may be issued.
If one reading (A) is different from the remaining two readings (B, C), the
reading (A) is identified as wrong and corrected so that it will be the same
as the other two (B, C).
2-3 Error Codes
The error codes used in association with the machine's control
mechanisms are as follows:
Code Description
E245 The number of writes made to the counter memory PCB (parallel
EEPROM) has executed a specific number (upper limit of
1,500l,000).
E246 An error has occurred when writing to the counter memory PCB
(parallel EEPROM; a normal counter reading cannot be written).
E247 The three readings, of the SRAM (2 areas) or the main controller
PCB and the counter memory PCB (parallel EEPROM) do not
match.
E350 The serial number PCB is faulty.
3-9
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Soft Counters
d. Differences from the CP660
The following explains how the CLC1150/1130’s method (used by the
machine) differs from the one used by the CP660:
d-1 Serial Number Input
In the CP660, the serial number must be entered in service mode whenever
the reader controller PCB (RCON) is replaced.
In the CLC1150/1130, on the other hand, the serial number is
automatically read from the serial number PCB, not requiring entering the
serial number in service mode when replacing the reader or main
controller PCB.
d-2 Counter Memory PCB
The CP660 is quipped with an IC socket for EEPROM on its reader
controller PCB (RCON).
In the case of the CLC1150/1130, on the other hand, a parallel EEPROM
is soldered to the counter memory PCB. The counter memory PCB is
connected using the connector (parallel interface) of the main controller
PCB, and is secured in place with screws, making illegal manipulation of
counter data difficult (as by copying EEPROM contents).
Main control PCB(E82/E72)
Counter memory PCB Serial number PCB
SRAM
Reader controller PCBCP660
SRAM
EEPROM
Serial number input
Figure 3-102
E354
It is indicated when the main controller
PCB and the counter memory PCB are
replaced simultaneously (prohibited)
or the serial number PCB is replaced.
E355
It is indicated if the main controller
PCB and the counter memory PCB are
replaced simultaneously (prohibited).
E354 The serial number information held by the serial number PCB
does not match the serial number information held by the main
controller PCB (SRAM) or the counter memory PCB (parallel
EEPROM); or, the appropriate serial number has not been entered
to the main controller PCB (SRAM) or the counter and the
counter memory PCB (parallel EEPROM).
E355 The serial numbers of the serial number PCB, main controller
PCB (SRAM), and counter memory PCB (parallel EEPROM) do
not match.
3-10
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
The machine’s ROM version may be upgraded by any of the following ways:
• Using the Download Tool
• Replacing the DIMM ROM
It may be upgraded using the Download Tool as follows:
1. Download Tool
The Service Support Tool, which is a program for downloading, is a modified
(upwardly compatible) version of the one used for the CP660, GP405, or
GP605. The interface, operating system, and operating environment remain
the same.
2. Download Connector
The download connector is located to the right rear of the machine.
Downloading
Figure 3-103
Types of DIMM ROMs in Question
The following types allow re-writing
using the Download Tool:
• ROM on the main controller PCB
• System program within the hard disk
drive.
Download Switch
The machine is not equipped with a
download switch. To switch between
LOAD and COPY, use service mode.
Downloadconnector
Cha
pter
4 A
cces
sorie
s
4-1
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
1. Features
a. Designed Exclusively for Stream Reading
It is exclusively designed for stream reading in all modes.
b. Identifies the Size of Originals
It detects the length (feeding direction) and width of an original, sending
the resulting size information to its host device.
c. Supports Double-Sided Originals
It uses a reversing mechanism to support double-sided originals.
d. Extra-Length Mode
Extra-length* mode may be selected, enabling handling of an original as
long as 630 mm.
e. Supports Mixed Sizes (same or different configurations)
It accepts two different original sizes.
*1: To use extra-length mode,
appropriate settings must be made in
service mode.
4-2
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
2. Specifications
DADF-D1
Auto pickup/delivery
Face-up on original tray
Center reference on original tray
Top separation
Pickup
Original orientation
Original placement
Original separation
100 sheets
Single-sided, double-sided
Yes (default sizes only)
Yes (in conjunction with host)
80 g/m2 paper or less
80 g/m2 paper or less
Original tray capacity
Yes (50 mm or less in thickness)Book original
Original handling mode
Original size identification
Residual original
Yes (same configuration)• If of same configuration,AB: A4/A3, B5/B4, A5/A4RYes (different configurations)• If of different configurations,AB: A3/B4, A4/B5, B4/A4R, B5/A5
Mixed original sizes
Original type
Original delivery tray capacity
100 sheets 80 g/m2 paper or less
Single-sided original: 38 to 18 g/m2
Double-sided original: 50 to 128 g/m2
If length is 432 mm or more, 60 to 90 g/m2.
Item Description Remarks
Original size A5 to A3/STMT to 279.4 × 431.8mm (11"×17")Width: 148 (A5R) to 297 (A3) mmLength: 140 (STMT) to (11"×17") mm
In extra-length mode, up to 630 mm (80 g/m2 paper or less)
4-3
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
24 VDC (from host device)
12.0 kg (approx.)
565 (W) × 508 (D) × 160 (H) mm
xxxx
Power supply
Weight
Dimensions
Communication with host device
IPC communication 2
Item Description Remarks
Operating environment Temperature Humidity
Same as host device
Serial number
DADF-D1
4-4
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
3. External View
Figure 4-101
[1]
[4]
[3]
[5]
[6]
[2]
[1] Upper cover
[2] Rear cover
[3] ADF controller cover
[4] Side guide
[5] Pickup tray
[6] Front cover
4-5
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
4. Cross Section
Figure 4-102
[1] [2] [3] [4] [5] [6]
[13] [11]
[7]
[10]
[8]
[12]
[9]
[1] Feeding large roller
[2] Registration roller 2
[3] Registration roller lower
[4] Registration roller upper
[5] Separation pad
[6] Feed roller
[7] Separation plate
[8] Pickup roller
[9] Delivery tray
[10] Delivery reversing roller lower
[11] Delivery reversing roller upper
[12] Read roll 2
[13] Read roll 1
4-6
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
5. Drive Chart
Figure 4-103
PI1
S1
S3
SL2
M3
CL1
M1
S2
PI5 PI4PI3
M2
Fee
d m
otor
driv
e si
gnal
Orig
inal
det
ectio
n si
gnal
(by
rea
d se
nsor
)
Orig
inal
sen
sor
Lock
ing
sole
noid
driv
e si
gnal
Del
iver
y re
vers
al m
otor
driv
e si
gnal
Reg
istr
atio
n 1
orig
inal
det
ectio
n si
gnal
Pic
kup
mot
or d
rive
sign
al
Pic
kup
clut
ch d
rive
sign
al
Orig
inal
set
sig
nal
A4R
/LT
RR
iden
tific
atio
n si
gnal
Larg
e-/s
mal
l-siz
e id
entif
icat
ion
sign
al
ADF controller PCB
Pos
t-se
para
tion
orig
inal
det
ectio
n si
gnal
4-7
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
6. Operations
a. Outline
The machine executes the following four types of operation modes; it executes each mode according to the
instructions from its host device (see the table for names of modes and corresponding print modes):
The terms “small-size” and “large-size” refer to the following:
[1] CW pickup/delivery
[2] CW pickup/reversal delivery
[3] idle feed/pickup/delivery
[4] idle feed/reversal pickup/delivery
single-sided original to single-sided printsingle-sided original to double-sized printsingle-sided originals of different configurations (small-size) to single-sided printsingle-sided originals of different configurations (small-size) to double-sided print
double-sided original to double-sided printdouble-sided original to single-sided printdouble-sided original of mixed configurations (small-size) to single-sided printdouble-sided originals of different configurations (small-size) to double-sided print
double-sided originals of different configurations (large-size) to double-sided printdouble-sided originals of different configurations (large-size) to single-sided print
single-sided original of different configurations (large-size) to single-side printsingle-sided originals of different configurations (large-size) to double-sided printextra-length original to single-sided print
Picks up an original; after printing, delivers it as it is.
Picks up an original; after printing, reverses and delivers it.
Feeds an original without printing to identify its size; picks it up once again, and delivers it as it is after printing.
Feeds an original without printing to identify its size; picks it up once again, reverses it, and delivers it as it is after printing.
Operation Outline Corresponding printer mode
Small-size
Large-size
A5R, A4R, B5R, LTRR, A5, A4, B5, LTR, STMT
A3, B4, LGL, 279.4 × 431.8 mm (11"×17")
4-8
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
b. CCW Pickup/Delivery (from single-sided to single-sided)
Figure 4-104 shows the flow of originals.
Figure 4-104
Pickup
Arching 1
Arching 2
Wait for reading
Delivery
Original
Wait for reading
4-9
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
c. CW Pickup/Reversed Delivery (double-sided to double-sided)
Figure 4-105a shows the flow of originals.
Wait for reading
Reading the face
Reversal
Arching
To next page
Arching 2
Original
Pickup
Arching 1
Figure 4-105a
4-10
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
Feeding
Reversal
Delivery
Wait for reading
Reading the back
Feeding
Feeding
Figure 4-105b
4-11
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
Figure 4-106a
d. Idle Feeding/Pickup/Delivery (mixed configurations, double-sided (large-size) to double-sided)
Figure 4-106a shows the flow of originals.
Pickup
Idle feeding
Re-pickup from reversal assembly
Wait for reading
Reading the back
Feeding
To next page
Arching
4-12
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
Figure 4-106b
Delivery
Wait for reading
Reading the face
Reversal
4-13
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
e. Idle Feeding/Reversed Pickup/Delivery (different configurations, single-sided (large-size) to single-
sided)
Figure 4-107 shows the flow of originals.
Figure 4-107a
Re-pickup from reversal assembly
Feeding 1
Wait for reading
Reversal
Feeding 2
To next page
Pickup
Idle feeding
4-14
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
Figure 4-107b
Delivery
Reading the face
4-15
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
7. Detecting Originals
a. Outline
The machine uses one of two methods of detecting an original according to the selected print mode:
• In normal printing mode (other than mixed configurations printing mode and extra-length mode)
• Mixed configurations printing mode and extra-length mode
b. Normal Printing (other than mixed configurations printing mode and extra-length mode)
In normal printing, originals are identified in any of the following three ways:
c. Mixed Configurations Printing Mode and Extra-Length Mode
In mixed configurations printing mode, originals are identified in any of the following two ways:
Detecting the presence/absence of an original
Detecting the initial original size• Feeding direction
• Cross-feeding direction
Detecting the size of the last original• Cross-feeding direction
Original set sensor (PI1)
Large-/small-size distinction sensor (PI3)
Original width volume (VR1)A4R/LTRR distinction sensor (PI4)
Post-separation sensor (S3)
Finds out whether there is an original on the original tray.
Finds out the length of the original set on the original tray (distinction between small size and large size).
Detects the width of the original set on the original tray.
Finds out the length of the original in feeding direction within the feeding path.
Function Description Sensor used (notation)
Detecting the presence/absence of an original
Detecting the length of an original
Original set sensor (PI1)
Post-separation sensor (S3)
Post-separation sensor (S3)
Read sensor (S2)
Finds out the presence/absence of an original on the original tray.
If the post-separation sensor (S3) is off (small-size) at the read wait position,• Computes the length with reference to the feed
distance from where the post-separation sensor turns off (passage of trailing edge) to where it stops at the wait position.
If the post-separation sensor (S3) is off (small-size) at the read wait position,• Computes the length with reference to the feed
distance from where the read sensor (S2) turns on during idle reversal to where the read sensor (S2) turns off.
Function Description Sensor used (notation)
4-16
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
8. Table of Sizes for Identification
The following tables show the default sizes that the machine identifies:
[AB-Configuration]
148 < W <164
164 < W <195
195 < W <235
235 < W <267
267 < W <297
Default size Original width W (mm)
Post-separation sensor (S3)
A5R
B5R
A5
A4R
B5
B4
A4
A3
OFF
ON
OFF
ON
OFF
ON
OFF
ON
4-17
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
Intentionnally blank page
4-18
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
9. Maintenance and Inspection
a. Periodically Replaced Parts
The machine does not have parts that must be replaced on a periodical basis:
b. Consumables and Durables
Some parts of the machine may require replacement once or more over the period of warranty of the machine
because of wear or damage. Replace them as necessary by referring to the guide below.
The number of originals picked up by the machine may be checked in the service mode of the host device.
1
2
3
4
Pickup roller
Feed roller
Separation pad
Separation pale
1
1
1
1
80,000
80,000
80,000
80,000
The number of copies represents the actual number of copies made, which may be checked in the service mode of the host device (COPIER>COUNTER>DURABLE).
No. LifeQ'tyPart No.Part name Remarks
4-19
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
c. Scheduled Servicing Chart
Remarks
: Clean : Replace ×: Lubricate : Adjust : Inspect
Copyboard glass
Copyboard glass retainer
Platen guide
White pale
Vertical size pale
Post-separation sensor
Read sensor
Delivery reversal sensor
Registration roller upper
Registration roller lower
Registration roller 2
Feed large roller
Feed roll 1
Feed roll 2
Delivery reversal roller upper
Delivery reversal roller lower
Pickup roller
Separation pad
Feed roller
Separation plate
-
-
-
-
-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
80,000 sheetsor 6 mo
160,000 copiesor 1 yr
Components of the reader unit
The number of copies represents the actual number of copies made, which may be checked in the service mode of the host device (COPIER>COUNTER>DURABLE).
Part nameRef. No.
Intervals
4-20
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
DADF-D1
Figure 4-108 shows the arrangement of the parts that are serviced on a periodical basis.
Figure 4-108
[2]
[7] [6] [5] [4] [1] [14]
[8] [11]
[15]
[10]
[12]
[9]
[13]
[3]
4-21
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Finisher-F1/Saddle Finisher-F2
1. Specifications
a. Finisher
Tray ascent/descent type (2-level tray)
Face-up/face-down
Stacking method
Stacking direction
64 to 200 g/m2Stack paper weight
Yes
No
Paper detection
Control panel/display
Latching by mounting plate
669 (W) × 582 (D) × 1052 (H) mm (punch width of 744.5 mm)
25 kg (X2); 49 kg (X3); 3.5 kg (punch)
From host device
170 W or less
Mounting
Dimensions
Weight
Power supply
Operating noise
Tray 1L size: 74 mm (equivalent of 500 sheets)S size: 147 mm (equivalent of 1,000 sheets)
Tray 2L size: 74 mm (equivalent of 500 sheets)S size: 147 mm (equivalent of 1,000 sheets)
Stack height (for non-stapling)
Tray 1L size: 500 sheets/30 sets/74 mmS size: 750 sheets/30 sets/110 mm
Tray 2L size: 500 sheets/30 sets/74 mmS size: 750 sheets/30 sets/110 mm
Stacking height (for stapling)
Mixed stacking
Maximum power consumption
Size: 44 mm (equivalent of 300 sheets)Staple: 22 mm (150 sheets, 30 sets)
Overflow A signal is issued if the maximum is exceeded for each size and tray; in staple mode, a signal will also be issued for an excess number of sets and sheets or an excess height.
Item Specifications Remarks
Operating mode
Stack paper size
Stack offset: 30 mmNon-sort stackingSort stacking (stack offset stacking)Staple stacking
AB: A3, A4, A4R, A5, A5R, B4, B5, B5R
Values within parentheses represent 80 g paper.Alignment is not guaranteed if 750 sheets or more.
4-22
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
b. Stapler
Figure 4-201
Punching by rotating cam
See Figure 4-201.
1-point stapling: A4R, LTRR, LGL
Face down staplingStapling method
Stapling position
Paper size
Special cartridge
Special staples
Yes
No
Staple replenishment
Staple
Staple detection
Manual stapling
Stapling capacity Equivalent of 80 g paper.Includes 2 thick sheets (covers).
S size: 50 sheetsL size: 30 sheets
2-point stapling: A3, A4, B4, B5, 279.4×431.8 mm (11"×17"), LTR
Item Specifications Remarks
Angle stapling (rear): A3, A4, B4, B5, 279.4×431.8 mm (11"×17"), LTR
Angle stapling (front): A3, A4, A4R, B4, B5, 279.4×431.8 mm (11"×17"), LGL, LTR, LTRR
Finisher-F1/Saddle Finisher-F2
1 1-pint stapling (front)A3 B4 A4 A4R B5LDR LGL LTR LTRR
2 1-point stapling (rear)A4RLTRR LGL
3 1-point stapling (rear)A3 B4 A4 B5LDR LTR
4 2-point taping
Stapling position accuracy
L2
L1L3
30˚ 30˚
L182.7±462.7±473.7±4
L2202.7±4182.7±4193.7±4
L35±25±25±2
A3 A4B4 B5
LDR LTR
size
Standard width: 6±2Standard width: 6±24.4±2
4.4±2 5±2 4±2
4-23
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Finisher-F1/Saddle Finisher-F2
c. Saddle Stitcher
Figure 4-202
Folding in two, stacking Fixed trayStacking method
A3, B4, A4R, 279.4×431.8 mm (11"×17"), LTRRPaper size
By special cartridge
Special staple
No
A signal will be issued when a maximum stack is exceeded.
From host device.
2,000 staples/cartridge
Same as STS-D1.
Staple replenishment
Staple type
Trimmer
Overflow
Power supply
Item Specifications Remarks
Binding By roller.Middle position may be adjusted.
Middle (stack folded in 2)
Binding position With reference to middleFixed interval
See Figure 4-202.
Paper type No special paper, postcard, or transparency allowed.
64 to 80 (one cover of 64 to 200 g/m2)
Stack thickness Includes one cover.w/o binding: 1 sheetsw/ binding: 2 to 15 sheets
Maximum power consumption
160 W or less
Stack 5 sheets or less: 25 sets6 to 10 sheets: 15 sets11 to 15 sheets: 10 sets
sizeA3B4
A4RLDRLTRR
L188.568.545
79.748
L3±1Feed direction
L2±2
L1±2
L2208.5188.5165
199.7168
L3210182
148.5216
139.7
Binding position accuracy
4-24
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Finisher-F1/Saddle Finisher-F2
d. Puncher
Figure 4-203
Reciprocating method Consecutive handlingPunch
See Figure 4-203.
By finisher
Hole position accuracy
Power supply
Item Specifications Remarks
Paper type No transparency or tracing paper is allowed.
64 to 200 g/m2
Paper size
Hole diameter
2-hole: A3, A4, A4R, B5, B5R3-hole: 279.4× 431.8 mm (11"×17"), LTRR4-hole: A3, A
Maximum power consumption
120 W or less
2-hole: 6.5 mm3-hole: 8.0 mm4-hole: 6.5 mm
Equivalent of 80 g/m2 paper.
Waste paper 2-hole: 10,000 sheets or more3-hole: 5,000 sheets or more4-hole: 5,000 sheets or more
A4/A3B5/B4A4RB5R
X1108.5±388.5±365±351±3
LTR/LDRX1
31.5±3
A4/A3X1
28.5±3
A4/A3X1
92.5±3
1 2-hole (non-USA)
12±3X1
X1
12±3
12±3
12±3
80±1 80±1 80±1 X1
21±1 70±1 21±1 X1
108±1 108±1
80±1
4 4-hole (SWE)
3 4-hole (FRN)
2 3-hole (USA)
4-25
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Finisher-F1/Saddle Finisher-F2
2. Maintenance and Inspection
a. Periodically Replaced Parts
The machine does not have parts that must be replaced on a periodical basis.
b. Consumables and Durables
Some parts of the machine may require replacement once or more over the period of warranty of the machine
because of wear or damage. Replace them as necessary by referring to the guide below.
The number of times each durable of the machine has been used may be checked in the service mode of the host
device (COPIER>COUNTER>DURABLE).
3 Knurled belt FB4-6656 2 2,000,000 times
No. LifeQ'tyPart No.Part name Remarks
1 1 500,000 stapling operations
5,000 staples/cartridgeEB4-5390Stapler (handling tray)
4 2 1,000,000 operations
Paddle unitPaddle rubber only
EG5-8178FB4-6825
Stapler paddle
5 1 1,000,000 operations
2-hole model3-hole model4-hole model4-hole model (SWD)
FG6-6235FG6-6236FG6-6237FG6-6238
Puncher
2 2 100,000 saddle stitching operations
2,000 staples/cartridgeEB3-7860Stapler (saddle stitcher)
4-26
Trainer's Reference
The information contained in the Trainer's Reference is true as of the date indicated on the front cover.<<Note>>
Finisher-F1/Saddle Finisher-F2
3. Scheduled Maintenance Chart
No. Item RemarksIntervals
Knurled belt
Stapler paddle
Penetrating type sensor (punch)
1
2
3
Same as minimum maintenance interval of host device.Cleaning