Radf Studio 45toshiba

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File No. 31100005


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Copyright 2000

TOSHIBA TEC CORPORATION


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General Precautions for Installation/Servicing/Maintenance for the MR-3011/3012

The installation and service should be done by a qualified service technician.

1. When installing the MR-3011/3012 to the Plain Paper Copier, be sure to followthe instructions described in the "Unpacking/Set-Up Procedure for the MR-3011/3012" booklet which comes with each unit of the MR-3011/3012.

2. The MR-3011/3012 should be installed by an authorized/qualified person.3. Before starting installation, servicing or maintenance work, be sure to turn off

and unplug the copier first.4. When servicing or maintaining the MR-3011/3012, be careful about the rotating

or operation sections such as gears, pulleys, sprockets, cams, belts, etc.5. When parts are disassembled, reassembly is basically the reverse of disassem-

bly unless otherwise noted in this manual or other related materials. Be carefulnot to reassemble small parts such as screws, washers, pins, E-rings, toothed

washers to the wrong places.6. Basically, the machine should not be operated with any parts removed or disas-

sembled.7. Delicate parts for preventing safety hazard problems (such as breakers,

thermofuses, fuses, door switches, sensors, etc. if any) should be handled/installed/adjusted correctly.

8. Use suitable measuring instruments and tools.9. During servicing or maintenance work, be sure to check the serial No. plate and

other cautionary labels (if any) to see if they are clean and firmly fixed. If not,take appropriate actions.

10. The PC board must be stored in an anti-electrostatic bag and handled carefully

using a wristband, because the ICs on it may be damaged due to static electric-ity. Before using the wrist band, pull out the power cord plug of the copier and

make sure that there is no uninsulated charged objects in the vicinity.11. For the recovery and disposal of used MR-3011/3012s, consumable parts and

packing materials, it is recommended that the relevant local regulations/rulesshould be followed.

12. After completing installation, servicing and maintenance of the MR-3011/3012,return the MR-3011/3012 to its original state, and check operation.


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PREPARATION FOR TRANSPORTATION OF COPIER

Before transporting a copier on which mounts the MR-3011/3012, take off the MR-

3011/3012 or insert a gaggers underneath the MR-3011/3012 as shown in thefollowing figures.1. Use pieces of the corrugated board came in the package of MR-3011/3012 or

equivalent as the gaggers. Insert the gaggers as shown in the figure, then closethe MR-3011/3012.

2. Make sure that the height positioning stud is not in contact with the originalglass.

Height positioningstud

Gagger

Gagger

Gagger The height positioning stud is notin contact with the original glass.


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iOctober 2000 TOSHIBA TEC MR-3011/3012 CONTENTS

CONTENTS

1. SPECIFICATION ......................................................................................... 1-1

2. CONFIGURATION ....................................................................................... 2-1

3. SECTIONAL VIEW AND DRIVE SYSTEM.................................................. 3-13.1 Sectional View ....................................................................................... 3-13.2 Drive System ......................................................................................... 3-2

4. SYMBOLS AND LAYOUT OF ELECTRICAL PARTS /DIAGRAM OF SIGNAL BLOCKS ................................................................ 4-1

4.1 Symbols ................................................................................................. 4-14.2 Layout of Electrical Parts ....................................................................... 4-34.3 Diagram of Signal Blocks....................................................................... 4-44.4 Description of Interface Signals ............................................................. 4-5

5. DESCRIPTION OF OPERATIONS .............................................................. 5-15.1 Single Side Feeding .............................................................................. 5-15.2 Duplex Feeding...................................................................................... 5-55.3 Single Side Feeding (for Mixed Sized Originals).................................... 5-14

6. JAMMING .................................................................................................... 6-1

6.1 Feeding Jam .......................................................................................... 6-16.2 Transport Jam ........................................................................................ 6-16.3 Exit Jam................................................................................................. 6-26.4 Reversing Jam ....................................................................................... 6-2

7. ORIGINAL SIZE DETECTION..................................................................... 7-17.1 Method of Original Size Detection (for Standard Sized Originals) ..... 7-17.2 Relation between Status of Sensor and Original Size

(for Standard Sized Originals) ........................................................... 7-37.3 Method of Original Size Detection (for Mixed Sized Original) ............ 7-47.4 Relation between Status of Sensor and Original Size

(for Mixed Sized Originals) ................................................................ 7-5

8. FLOW CHART ............................................................................................. 8-1

9. TIMING CHART........................................................................................... 9-1

10. DESCRIPTION OF CIRCUITS .................................................................... 10-110.1 Input Circuits for Original Length Sensor, Read Sensor

and Reverse Sensor .............................................................................. 10-110.2 Irruptive Current Control Circuit ............................................................. 10-210.3 Drive Circuit for Read Motor .................................................................. 10-310.4 Drive Circuit for Reverse Motor .............................................................. 10-4


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iiOctober 2000 TOSHIBA TEC MR-3011/3012 CONTENTS

10.5 Drive Circuit for Feed Motor ................................................................... 10-510.6 Current Control Circuit for Feed Motor ................................................... 10-610.7 Drive Circuit for Fan Motor ..................................................................... 10-6

10.8 Drive Circuit for Reverse Solenoid ......................................................... 10-710.9 Reset Circuit .......................................................................................... 10-710.10 EEPROM Circuit .................................................................................... 10-8

11. DESCRIPTION OF INPUT/OUTPUT SIGNALS .......................................... 11-111.1 REQ Signal, ACK Signal and TxD Signal .............................................. 11-111.2 DF-ACK Signal, DF-REQ Signal and RxD Signal.................................. 11-211.3 Input Circuits for Sensors ...................................................................... 11-3

12. DISASSEMBLY AND ADJUSTMENT .......................................................... 12-112.1 Pickup Roller and Feed Roller ............................................................... 12-1

12.2 Separation Roller ................................................................................... 12-212.3 Reverse Solenoid .................................................................................. 12-312.4 Drive System ......................................................................................... 12-4

12.4.1 Fan motor .......................................................................................... 12-412.4.2 Read motor(MR-3011) ...................................................................... 12-512.4.3 Read motor(MR-3012) ...................................................................... 12-712.4.4 RADF open/close switch ................................................................... 12-812.4.5 Feed motor ........................................................................................ 12-912.4.6 Reverse motor ................................................................................... 12-1012.4.7 RADF open/close sensor .................................................................. 12-1012.4.8 PC board ........................................................................................... 12-10

12.4.9 Jam access cover switch ................................................................... 12-1012.4.10 Feed motor clock sensor .................................................................. 12-11

12.5 Tray sensor ............................................................................................ 12-1112.6 Empty Sensor, Registration Sensor, Original Width Sensor and

Original Length Sensor .......................................................................... 12-1212.7 Read Sensor.......................................................................................... 12-1312.8 Exit Sensor ............................................................................................ 12-1312.9 Reverse Sensor ..................................................................................... 12-1412.10 Adjustment of registration ...................................................................... 12-1512.11 Adjustment of original registration for reversing operation ..................... 12-1612.12 Adjustment of reverse solenoid ............................................................. 12-1712.13 Adjustment of RADF open/close switch ................................................. 12-18

12.14 Adjustment of RADF open/close sensor ................................................ 12-1912.15 Adjustment of image skew..................................................................... 12-2012.16 Adjustment of height (RADF)................................................................. 12-2112.17 Initialization of EEPROM and Adjustment of Sensors ........................... 12-2212.18 Attachment of Mylars ............................................................................. 12-23

13. SERVICE ..................................................................................................... 13-113.1 Troubleshooting for Mechanical Errors .................................................. 13-113.2 Troubleshooting for Electrical Errors ...................................................... 13-3


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iiiOctober 2000 TOSHIBA TEC MR-3011/3012 CONTENTS

14. ASSEMBLY OF PC BOARD ........................................................................ 14-1

15. PERIODIC MAINTENANCE ........................................................................ 15-1

16. CIRCUIT DIAGRAM / HARNESS DIAGRAM .............................................. 16-116.1 Circuit Diagram (MR-3011) .................................................................... 16-1

16.2 Circuit Diagram (MR-3012) .................................................................... 16-216.3 Control PC Board Circuit ....................................................................... 16-316.4 Harness Diagram (MR-3011)................................................................. 16-416.5 Harness Diagram (MR-3012)................................................................. 16-5


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1-1October 2000 TOSHIBA TEC MR-3011/3012 SPECIFICATION

1. SPECIFICATION

*Specification and appearance are subject to change without notice due to enhancedment of product quality.

Model NameCapacity of Original Feeding TrayFeed Speed

Acceptable Original Size

Power SourcePower ConsumptionDimensionsWeight

MR-3011/MR-3012Up to 100 sheetsMR-3011:

Approx.16 sheets/min. (A4 or Letter, feed widthwise) [DP1600]Approx.20 sheets/min. (A4 or Letter, feed widthwise) [DP2000]Approx.25 sheets/min. (A4 or Letter, feed widthwise) [DP2500]

MR-3012:Approx.35 sheets/min. (A4 or Letter, feed widthwise) [DP3500]Approx.45 sheets/min. (A4 or Letter, feed widthwise) [DP4500]

Smallest...A5-RLargest...A3Thickness...50g/m2~127g/m2 (13.3lb~33.8lb)Power supplied from the copier48WW557 D497.3 H165 (W22 inches D19.6 inches H6.5inches)Approx.13.6kg or 29.9lb


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2-1October 2000 TOSHIBA TEC MR-3011/3012 CONFIGURATION

2. CONFIGURATION

Electrical parts Empty sensor Original length sensor

Registration sensor Original width sensor Read sensor Reverse sensor Exit sensor

Tray sensor Feed motor Read motor Reverse motor Reverse solenoid RADF open/close sensor RADF open/close switch Jam access cover switch

PC board

Mechanical Jam access cover Pickup roller

Feed roller Separation roller Registration roller Read roller Reverse roller Exit roller Original feeding tray

Feeding/transportation section

Original feeding tray sectionDrive/control section

Feeding/transportation section

Original receiving tray

Original feeding tray

Drive/control section

Jam access cover


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3-1October 2000 TOSHIBA TEC MR-3011/3012 SECTIONAL VIEW

3. SECTIONAL VIEW AND DRIVE SYSTEM

3.1 Sectional View

Orig

ina

lw

idthsensor

Rea

d

sensor

3

Sma

llro

ller1

Flapp

erR

eg

istra

tionro

ller

Orig

ina

lle

ng

th

sensor

Reg

istra

tionsensor

Separat

ionro

ller

Fee

dro

ller

Emp

tylever

Pickupro

ller

Traysensor

Reversegu

ide

Reversero

ller

Ex

itro

ller

Ex

itsensor

Sma

llro

ller2

Sma

llro

ller3

Sma

llro

ller4

Rea

dro

ller

Reversesensor

Revers

eflapper

Ex

itflapper


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3.2 Drive System(1) Feed motor rotating clockwise (as seen from the front side)

(2) Feed motor rotating counterclockwise (as seen from the front side)

One-way clutch (locked)

Spring clutch(Stops the drive for the clutch when thepickup roller reaches its upper limit position)

Pickup roller (lifted up)

Front side

Rear side

Feed motor

Motor rotating clockwise to transport original

Motor rotating counterclockwise to transport original

One-way clutch (slipped)Pickup roller (Down)

Front side

Rear side

Feed motor


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(3) Read motor rotating clockwise (as seen from the front side)

(4) Read motor rotating counterclockwise (as seen from the front side)

Transportation, scanning and original exit(read motor rotating clockwise)

Read roller

One-way gear

Exit roller

Reverse roller

Reverse motor rotating clockwiseto carry original to the reverse path.

Read motor

Reverse motor

Rear side

Front side

Read motor rotating counterclockwiseto transport mixed sized originals.

Read roller

One-way gear

Exit roller

Reverse roller

Reverse motor rotating counterclockwisefor back side registration and original discharge.

Read motor

Reverse motor

Rear side

Front side


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4-1October 2000 TOSHIBA TEC MR-3011/3012 SYMBOLS

4. SYMBOLS AND LAYOUT OF ELECTRICAL PARTS / DIAGRAMOF SIGNAL BLOCKS

4.1 Symbols(1) Motors

(2) Solenoid

Remarks

Pulse motor

Pulse motor

DC motor

Fan motor

Function

Drives transportation roller and exit roller

Drives reverse roller

Drives pickup roller, feed roller and registrationroller

Cools down read motor

Name

RDMOT(Read motor)

RVMOT(Reverse motor)

FMOT(Feed motor)

FAN(Fan motor)

Symbol

RDMOT

RVMOT

FMOT

FAN

RemarksDC solenoid

FunctionSwitches flapper

NameRSOL(Reverse solenoid)

Symbol

RSOL


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(3) Switches and Sensors

FunctionSwitch to detect if jam access cover for feedingunit is opened/closedSwitch to detect if RADF unit is opened/closed

Sensor to detect original on original tray

Sensor to detect original at registration position

Sensor to deteat original at exit area

Original width detection sensor 1



Sensor to detect length of original on originaltraySensor to detect if RADF unit is opened/closed

Detection sensor for feed motor clock

Sensor to detect length of original

Sensor to detect leading edge of original atscanning positionSensor to detect original at reverse position

RemarksMicroswitch

Microswitch

Semiconductive

optical sensorSemiconductiveoptical sensorSemiconductiveoptical sensorSemiconductiveoptical sensorSemiconductiveoptical sensorSemiconductiveoptical sensorSemiconductiveoptical sensorSemiconductive

optical sensorSemiconductiveoptical sensorSemiconductiveoptical sensorSemiconductiveoptical sensorSemiconductiveoptical sensor

NameJAM-SW(Jam access cover switch)RADF-OPN-SW(RADF open/close switch)EMP-SNS

(Empty sensor)REG-SNS(Registration sensor)EXIT-SNS(Exit sensor)SIZE-SNS 1(Original width sensor 1)SIZE-SNS 2(Original width sensor 2)SIZE-SNS 3(Original width sensor 3)TRY-SNS(Tray sensor)RADF-OPN-SNS

(RADF open/close sensor)MCLK-SNS(Feed motor clock sensor)LENG-SNS(Original length sensor)Read-SNS(Read sensor)RVR-SNS(Reverse sensor)

Symbol

JAMSW

OPNSW

EMPS

REGS

EXITS

SIZES1

SIZES2

SIZES3

TRYS

OPNSN

MCLK

LENGS

READS

RVRS

(4) PC board

Function

Drives feeding and transportation

RemarksName

PWA-LGC-RADF(PC board)

Symbol

PWA-DF


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4.2 Layout of Electrical Parts

RDMOT Read motor

RVMOT Reverse motorFMOT Feed motorFAN Fan motorRSOL Reverse solenoidJAMSW Jam access cover switchOPNSW RADF open/close switchEMPS Empty sensorREGS Registration sensorEXITS Exit sensorSIZE 1 Original width sensor 1SIZE 2 Original width sensor 2SIZE 3 Original width sensor 3TRYS Tray sensorOPNS RADF open/close sensor

MCLK Feed motor clock sensorLENGS Orignal length sensorREADS Read sensorRVRS Reverse sensor

MCLK

JAMSW

OPNSW

FMOT

RVMOT

EMPS

SIZES1

OPNS

SIZES3

SIZES2

RSOL

TRYS

REGS

EXITS

RDMOT

FAN

READS

RVRS

LENGS


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4.3 Diagram of Signal Blocks

JAMSWJAM-SW

OPNSWRADF-OPN-SW

EMPSEMP-SNS

REGSREG-SNS

EXITSEXIT-SNSSIZES1SIZE-SNS1

SIZES2SIZE-SNS2

SIZES3SIZE-SNS3

TRYSTRY-SNS

OPNSRADF-OPN-SNS

MCLKMCLK-SNS

LENGSLENG-SNS

READSREAD-SNS

RVRSRVR-SNS

PWA-LGC-F513

Sensorinputcircuit

RADF (Reversing Automatic Document Feeder)

ACK

VARID

EMPTY

RxD

SGND

TxD

SGNDDF-ACK

DF-REQ

REQ

RADFCNT

Commu-nication

circuit

Irruptivecurrentcontrolcircuit

DC+24V

DC+24V

(Supplied from copier)

(Supplied from copier)P+5V

P+5V

(Supplied from copier)DC+5V

DC+5V

*1

Driver

RVMOT RVMOT

RDMOT RDMOT

FMOT FMOTDriver

CPU FANDriver FAN

RSOLDriver RSOL

EEPROM

ROM

*1 Available only for MR-3011

PPC (copier)


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4.4 Description of Interface Signals

The following 6 lines are used to send/receive signals between the copier and the RADF.REQ .............Communication request signal (from copier to RADF)DF-REQ ....... Communication request signal (from RADF to copier)DF-ACK........ Response signal for communication request signal (from RADF to copier)ACK .............. Response signal for communication request signal (from copier to RADF)TxD ..............Data sent from copier to RADF

RxD ..............Data sent from RADF to copier

Data communication (RxD and TxD) between the scanner and RADF has adopted the serial communicationsystem which does not allow checking using testing devices to see whether the signals are sent/receivedproperly in the field.

RxD

RADF Copier

ACK

DF-REQ

TxD

DF-ACK

REQ


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5-1October 2000 TOSHIBA TEC MR-3011/3012 DESCRIPTION OF OPERATION

5. DESCRIPTION OF OPERATIONS

5.1 Single Side Feeding(A4, registration ratio 100%)

(1) Setting original

The original is set on the tray and the empty sensor is turned ON.The original set signal becomes ON.

(2) Start of pre-feeding operation Completion of pre-feeding operation

A feed signal is sent from the main unit, and the feed motor rotates the pickup roller and feed motor to startfeeding the original (pre-feeding operation).

(3) Start of feeding operation Original length sensor OFF

The feed motor starts to rotate in reverse and the read motor rotates forward to rotate the registration roller andthe read roller while the original is waiting in front of the registration roller and read roller starts to be transported.The feed motor is stopped after the original length sensor is turned OFF.


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(4) Original length sensor OFF Completion of sending operation

If the next original is waiting in the tray, the pickup roller is lowered after the feed motor which has started torotate forward rotates for a certain number of pulses. (The pickup roller waits for the next pre-feeding operation inthat lowered position.)The read motor rotates for a certain number of pulses and stops after the read sensor is turned ON. (The leadingedge of the original reaches the pre-scanning position.)

(5) Start of scanning operation Start of pre-feeding operation for next original

The original transport signal is sent from the main unit, and the read motor starts to rotate forward. The readroller and exit roller are rotated to start scanning the original. The feed motor rotates the pickup roller and feed

roller after the trailing edge of the original has passed the registration roller to start the pre-feeding operation forthe next original.

(6) Start of pre-feeding operation for next original Completion of pre-feeding operation

After the registration sensor has detected the leading edge of the original. The feed motor transports the originalfor a certain number of pulses, performs registration and stops.


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(7) Start of feeding operation for next original Completion of scanning operation

The feed motor starts to rotate in reverse, it rotates the registration roller to feed the next original waiting in frontof the registration roller and read roller.The original set signal is reset when the empty sensor is turned OFF. The feed motor is stopped after the originallength sensor is turned OFF.The scanning operation is completed when the trailing edge of the original being scanned has passed thescanning position.

(8) Completion of scanning operation Completion of feeding operation for next original

The read motor rotates for a certain number of pulses and stops after the read sensor is turned ON.

(The leading edge of the next original reaches the pre-scanning position.)

(9) Start of scanning operation for next original Completion of original discharge

The read motor starts to rotate forward, it rotates the read roller and exit roller to start scanning the next original.Original discharge is completed when the trailing edge of the original has passed the exit roller.


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(10)Completion of scanning operation for next original

Scanning is completed when the trailing edge of the next original has passed the scanning position and theoriginal is carried toward the receiving tray.

(11)Exit sensor OFF (next original)

After the exit sensor is turned OFF, the feed motor rotates for a certain number of pulses till the original iscompletely discharged.

(12)Completion of original discharge (next original)

The read motor is stopped when the next original is completely discharged into the receiving tray.


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5.2 Duplex Feeding(A4, reproduction ratio 100%)


The original is set on the tray and the empty sensor is turned ON.The original set signal becomes ON.


A feed signal is sent from the main unit, and the feed motor starts to rotate forward and rotates the pickup roller

and feed roller to start the pre-feeding operation. After the registration sensor detected the leading edge of theoriginal, the feed motor transports the original for a certain number of pulses, performs registration and stops.

(3) Start of feeding operation Original length sensor OFF

The feed motor starts to rotate in reverse and the read motor starts to rotate forward to start feeding the originalwaiting in front of the registration roller and the read roller. The feed motor is stopped after the original lengthsensor is turned OFF.


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(4) Original length sensor OFF Completion of feeding operation

If the next original is waiting on the tray, the pickup roller is lowered after the feed motor started to rotate forwardrotates for a cer tain number of pulse. (The pickup roller waits for next pre-feeding operation in that loweredposition.)The read motor rotates for a certain number of pulses and stops after the read sensor is turned ON. (The leadingedge of the original reaches the pre-front side scanning position.)

(5) Start of front side scanning operation Start of pre-feeding operation for next original

An original transport signal is sent from the main unit, and the read motor and reverse motor start to rotateforward. The read roller, exit roller and reverse roller are then rotated. The reverse flapper is switched toward the

reverse position by turning ON the reverse solenoid and the front side of the original, starts to be scanned.The feed motor rotates the pickup roller and feed roller after the trailing edge of the original has passed theregistration roller, to start the pre-feeding operation for the next original.

(6) Start of pre-feeding operation for next original Completion of pre-feeding operation Completion of front-side scanning operation

After the registration sensor has detected the leading edge of the next original, the feed motor transports theoriginal for a certain number of pulses, performs registration and stops. Scanning of the front side of original iscompleted when the trailing edge of the original being scanned has passed the scanning position.


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(7) Completion of transport operation for front side of original (original paused at reverse position)

The read motor and reverse motor are stopped after the reverse sensor is turned OFF to complete transporta-tion of the front side of the original.

(8) Start of back side registration operation Completion of registration

The reverse motor starts to rotate in reverse and rotates the reverse roller in reverse to start the registrationoperation for the back side of the original pausing at the reverse position.After the reverse sensor has detected the trailing edge of the original, the feed motor transports the original for acertain number of pulses, performs registration and stops.

(9) Start of reverse feeding operation Completion of reverse feeding operation

The read motor star ts to rotate forward and the reverse motor starts to rotate in reverse. The read roller, exitroller and reverse roller are rotated to start the reverse feeding operation for the original waiting at the back sideregistration position. The read motor and reverse motor rotate for a certain number of pulses and stop after theread sensor is turned ON. (The leading edge of the original reaches the pre-back side scanning position.)


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(10)Start of back side scanning operation Original passing reverse position

An original transport signal is sent from the main unit, and the read motor starts to rotate forward and reversemotor starts its reverse rotation activated by read rotate in reverse to rotate the read roller, exit roller and reverseroller. The reverse flapper is switched toward the reverse position by turning ON the reverse solenoid to startscanning the back side of the original.The reversal motor rotates for a certain number of pulses and stops after the trailing edge of the original haspassed the reverse roller.

(11)Original passing reverse position Completion of back side scanning operation

The reversal motor starts to rotate forward and rotates the reverse roller to be ready for the leading edge of the

original to come into the reverse position.The scanning operation for the back side of the original is completed when the trailing edge of the original haspassed the scanning position.

(12)Completion of transport operation for back side of original (original paused at reverse position)

The read motor and reverse motor are stopped after the reverse sensor is turned OFF to complete transporta-tion of the back side of the original.The reverse flapper is switched to the exit side by turning OFF the reverse solenoid.


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(13)Start of reverse discharge Start of feeding operation for next original Original length sensor OFF

The read motor star ts to rotate forward and the reverse motor starts to rotate in reverse. The read roller, exitroller and reverse roller are rotated to start reverse discharge of the original paused at the reverse position. Thefeed motor rotates for a certain number of pulses after the reverse sensor is turned ON. It then starts to rotate inreverse to rotate the registration roller, and starts the feeding operation for the next original waiting in front of theread roller and registration roller.The original set signal is reset when the empty sensor is turned OFF.The reverse motor is stopped after the reverse sensor is turned OFF.The feed motor is stopped after the original length sensor is turned OFF.

(14)Original length sensor OFF Completion of feeding operation for next original

The read motor rotates for a certain number of pulses and stops after the read sensor is turned ON. (The leadingedge of the next original reaches the pre-scanning position for front side of original.)

(15)Start of front side scanning operation pre-scanning position for front side of original Completion ofreverse discharge operation

The read motor and reverse motor start to rotate forward to rotate the read roller, exit roller and reverse roller.The reverse flapper is switched toward the reverse position by turning ON the reverse solenoid to start thescanning of the front side of next original.The reverse discharge operation is completed when the trailing edge of the original has passed the exit roller.


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(16)Completion of front side scanning operation

The scanning operation for the front side of the original is completed when the trailing edge of next original haspassed the scanning position.

(17)Completion of transport operation for the front side of next original (original paused at reverse position)

The read motor and reverse motor are stopped when the reverse sensor is turned OFF to complete the transportoperation for the front side of the original.

(18)Start of back side registration Completion of back side registration

The reverse motor starts to rotate in reverse and the reverse roller rotates in reverse to start the registration of

the next original paused at the reverse position.After the reverse sensor has detected the leading edge of the original, the reverse motor transports the originalfor a certain number of pulses, performs registration and stops.


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(19)Start of reverse feeding operation for next original Completion of reverse feeding operation

The read motor star ts to rotate forward and the revese motor star ts to rotate in reverse. The read roller, exit rollerand reverse roller are rotated to start the reverse feeding operation for the next original waiting at the back sideregistration position. The read motor and reverse motor rotate for a certain number of pulses and stop after theread sensor has been turned ON.(The leading edge of next original reaches the pre-scanning position for the back side of the original.)

(20)Start of back side scanning operation Original passing reverse position

The read motor starts to rotate forward and the reverse motor starts to rotate in reverse to rotate the read roller,exit roller and reverse roller. The reverse flapper is switched toward the reverse position by turning ON the

reverse solenoid to start scanning the back side of the next original.The reverse motor rotates for a certain number of pulses and stops after the trailing edge of the next original haspassed the reverse roller.

(21)Next original passing reverse position Completion of back side scanning

The reverse motor starts to rotate forward and the reverse roller is rotated to be ready for the leading edge of thenext original to come into the reverse position.The scanning of the back side of the original is completed when the trailing edge of the next original has passedthe scanning position.


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(22)Completion of transport operation for back side of next original (original paused at reverse position)

The read motor and reverse motor stop after the reverse sensor is turned OFF to complete transportation of theback side of the original. The reverse flapper is switched to the exit side by turning OFF the reverse solenoid.

(23)Start of reverse discharge operation of next original Start of feeding operation for next original Originallength sensor OFF

The read motor star ts to rotate forward and the reverse motor starts to rotate in reverse. The read roller, exitroller and reverse roller are rotated to start the reverse discharge of the next original paused at the reverseposition. The reverse motor stops after the reverse sensor has been turned OFF.

(24)Exit sensor OFF

After the exit sensor has been turned OFF, read motor rotates for a certain number of pulses till the next originalhas completely discharge.


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(25)Completion of reverse discharge operation for next original

The read motor is stopped when the next original is completely discharged into the original receiving tray toterminate the reverse discharge operation.


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5.3 Single Side Feeding (for Mixed Sized Originals)(Mixture of A4-R and FOLIO (LTR/LG), reproduction ratio 100%)


An original is set on the tray and the empty sensor is turned ON.The original set signal becomes ON.


The feed signal is sent from the main unit, and the feed motor starts to rotate forward. The pickup roller and feedroller are rotated to start the pre-feeding operation. After the registration sensor has detected the leading edge of

the original, the feed motor transports the original for a certain number of pulses, performs registration andstops.

(3) Start of feeding operation Completion of feeding operation

The feed motor starts to rotate in reverse and the read motor starts to rotate forward. The registration roller andread roller, exit roller are rotated to start feeding the original waiting in front of the registration roller and readroller.The feed motor stops and the read motor rotates for a certain number of pulses and stops when the read sensoris turned ON. (The leading edge of the original reaches the pre-scanning position)


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(4) Start of transport operation Original length sensor OFF

The read motor starts to rotate forward and rotates the read roller and exit roller to start transportation of theoriginal paused at the scanning position. (The original is transported to determine its lengthwise size along thefeeding direction.)

(5) Original length sensor OFF Completion of downswing operation of pickup roller

The pickup roller is lowered after the feed motor has started to rotate forward and has rotated for a certainnumber of pulses. (The pickup roller waits for the next pre-feeding operation in the lowered position.)

(6) Completion of downswing operation of pickup roller Pre-reverse position for mixed sized original

The read motor rotates for a certain number of pulse and stops after the original length sensor has been turnedOFF. (The trailing edge of the original reaches the pre-reverse position.)


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(7) Start of reverse operation for mixed sized originals Completion of reverse operation

The gate for the reverse path is switched after a certain period of time. The read motor starts to rotate in reverseand rotates the read roller and exit roller in reverse to start the reverse operation.The read motor rotates for a certain number of pulses and stops after the read sensor has been turned OFF.

(8) Start of transportation Completion of transportation

The read motor starts to rotate forward and rotates the read roller and exit roller to start the transportation of theoriginal to the pre-scanning position.The read motor rotates for a certain number of pulses and stops after the read sensor has been turned ON. (Theleading edge of the original reaches the pre-scanning position.)

(9) Start of scanning operation Start of pre-feeding operation for next original Completion of pre-feedingoperation

A transport signal is sent from the main unit, and the read motor starts to rotate forward. The read roller and exitroller is rotated to start scanning the original. The feed motor rotates pickup roller and feed roller to start the pre-feeding operation for the next original.After the registration sensor has detected the leading edge of the original, the feed motor transports the originalfor a certain number of pulses, performs registration and stops.


34/120


(10)Completion of scanning operation

Scanning is completed when the trailing edge of the original has passed the scanning position.

(11)Exit sensor OFF Start of feeding operation for next original

The feed motor starts to rotate in reverse after the exit sensor has been turned OFF and rotates the registrationroller to start feeding the next original waiting in front of the registration roller and read roller.The original discharge operation is completed when the trailing edge of the original has passed the exit roller.

(12)Completion of feeding operation for next original

The feed motor stops and the read motor rotates for a certain number of pulses and stops when the read sensor

has been turned ON. (The leading edge of the next original reaches the pre-scanning position.)


35/120


(13)Start of transportation of next original Original length sensor OFF

The read motor starts to rotate forward and rotates the read roller and exit roller to transport the next originalpaused at the scanning position.(The original is transported to determine its lengthwise size along the feeding direction.)The original set signal is reset when the empty sensor is turned OFF.

(14)Original length sensor OFF (for next original) Pre-reverse position for mixed sized originals

The read motor rotates for a certain number of pulses and stops after the original length sensor has been turnedOFF. (The trailing edge of the next original reaches the pre-reverse position.)

(15)Start of reverse operation for the next mixed sized original Completion of reverse operation

The gate for the reverse path is switched after a certain period of time. The read motor starts to rotate in reverseand rotates the read roller and exit roller in reverse to start the reverse operation.The read motor rotates for a certain number of pulses and stops after the read sensor has been turned OFF.


36/120


(16)Start of transportation of next original Completion of transportation

The read motor starts to rotate forward and rotates the read roller and exit roller to start the transportation of thenext original to the pre-scanning position.The read motor rotates for a certain number of pulses and stops after the read sensor has been turned ON. (Theleading edge of the next original reaches the pre-scanning position.)

(17)Start of scanning operation for next original

A transport signal is sent from the main unit and the read motor starts to rotate forward. The read roller and exitroller is rotated to start scanning the next original.

(18)Completion of scanning operation for next original

Scanning is completed when the trailing edge of the next original has passed the scanning position.


37/120


(19)Exit sensor OFF Completion of discharge operation for next original

After the exit sensor has been turned OFF, the read motor rotates for a certain number of pulses till the nextoriginal is completely discharge into the tray. The read motor is stopped when the next original is completelydischarge into the receiving tray to complete the original discharge operation.None: (Duplex feeding of mixed-sized originals)

The reverse mechanism detects the size of the mixed-sized originals consisting of A4-R/FOLIO or LT-R/LG, then the scanning operation is started.


38/120

6-1October 2000 TOSHIBA TEC MR-3011/3012 JAMMING

6. JAMMING

6.1 Feeding Jam(1) Original not reaching registration sensor

Jam detection:Jam detection is performed after the feed motor starts to rotate forward to start the pre-feeding operation,until the leading edge of the original has reaches the registration sensor.

Jam timer settingThe setting value of thrice the amount of time after the original turns on the empty sensor till it reaches theregistration sensor is set for the jam timer.

6.2 Transport Jam(1) Original jamming at registration sensor

Jam detection for single-sided/duplex originals:Jam detection is performed after the read motor starts to rotate forward to start scanning the front side ofthe original, until the trailing edge of the original has passed the registration sensor.

Jam pulse setting[In the normal mode]Assume that the longest original (LD) is at the pre-scanning position. The setting value of an added+30mm to the distance till the trailing edge of the original has passed the registration sensor is set as thejam pulse.

[In the length is irregularly long mode]Assume then the longest original (original length approx. 1m) is at the pre-scanning position. The settingvalue of an added +50mm to the distance till the trailing edge of the original has passed the registrationsensor is set as the jam pulse.

(2) Original not reaching read sensor (1) Jam detection for single-sided/duplex originals:

Jam detection is performed after the leading edge of the original reaches the first small roller of the readroller during the pre-feeding operation, until it has reached the read sensor.

Jam pulse settingThe setting value of an added +60mm to the distance from the first small roller of the read roller to theposition where the read sensor is turned ON is set as the jam pulse.

(3) Original not reaching read sensor (2) Jam detection for duplex originals:

Jam detection is performed after the read motor starts to rotate forward to start switchback feeding, untilthe leading edge of the original has reached the read sensor.

Jam pulse settingThe setting value of an added +30mm to the distance from the back side registration position (= theposition where the 4th small roller of the read sensor is located) till the read sensor is turned ON is set asthe jam pulse.

(4) Original jamming at read sensor (1) Jam detection for single-sided/duplex originals:

Jam detection is performed after the trailing edge of the original has passed the registration sensor duringthe pre-feeding operation, until it has passed the read sensor.

Jam pulse setting

The setting value of an added +30mm to the distance from the position where the registration sensor isturned OFF till the read sensor is turned OFF is set as the jam pulse.

(5) Original jamming at read sensor (2) Jam detection for duplex originals:

Jam detection is performed after the original waiting at the back side registration position reaches the readsensor during the reverse feeding operation, until the trailing edge of the original has passed the readsensor during scanning.

Jam pulse settingThe setting value of an added +30mm to the distance till the longest original (LD) passes the read sensoris set as the jam pulse.


39/120


(6) Original not reaching exit sensor (1) Jam detection for single-sided/duplex originals:

Jam detection is performed after the read motor starts to rotate forward to start scanning the originalwaiting at the pre-front side scanning position, until the leading edge of the original has reached the exitsensor.

Jam pulse settingThe setting value of an added +30mm to the distance from the pre-scanning position till the exit sensor isturned ON is set as the jam pulse.

(7) Original not reaching reverse sensor (1) Jam detection for duplex originals:

Jam detection is performed after the read motor starts to rotate forward to start scanning the front side ofthe original, until the leading edge of the original has reached the reverse sensor.

Jam pulse settingThe setting value of an added +30mm to the distance from the pre-scanning position till the reverse sensoris turned ON is set as the jam pulse.

6.3 Exit Jam(1) Original jamming at exit sensor (1)

Jam detection for duplex originals:Jam detection is performed after the trailing edge of original paused at the reverse position has passed the

reverse sensor during the reverse operation, until it has passed the exit sensor. Jam pulse setting

The setting value of an added +60mm to the distance from the position where the reverse sensor is turnedOFF till the exit sensor is turned OFF is set as the jam pulse.

(2) Original jamming at exit sensor (2) Jam detection for single-sided/duplex originals:

Jam detection is performed after the trailing edge of the original waiting at the pre-front side scanningposition has passed the read sensor during the scanning operation, until it has passed the exit sensor.

Jam pulse settingThe setting value of an added +60mm to the distance from the position where the read sensor is turnedOFF till the exit sensor is turned OFF is set as the jam pulse.

6.4 Reversing Jam(1) Original not reaching exit sensor (2) Jam detection for duplex originals:

Jam detection is performed after the leading edge of the original paused at the reverse position hasreached the reverse sensor during the reverse discharge operation, until it has reached the exit sensor.

Jam pulse settingThe setting value of an added +30mm to the distance from the position where the reverse sensor is turnedON till the exit sensor is turned ON is set as the jam pulse.

(2) Original not reaching reverse sensor (2) Jam detection for duplex originals:

Jam detection is performed after reverse motor starts rotating in reverse to start the reverse operation forthe original paused at the reverse position, until the leading edge of the original has reached the reversesensor.

Jam pulse settingThe setting value of an added +30mm to the distance from the pre-reverse position till the reverse sensoris turned ON is set as the jam pulse.

(3) Original jamming at reverse sensor (1) Jam detection for duplex originals:

Jam detection is performed after the trailing edge of the original being scanned has passed the readsensor, until it has passed the reverse sensor.

Jam pulse settingThe setting value of an added +30mm to the distance from the position where the read sensor is turnedOFF till the reverse sensor is turned OFF is set as the jam pulse.


40/120


(4) Original jamming at reverse sensor (2) Jam detection for duplex originals:

Jam detection is performed after the leading edge of the original paused at the reverse position hasreached the reverse sensor during the reverse discharge operation, until the trailing edge of the originalhas passed the reverse sensor.

Jam pulse settingThe setting value of an added +30mm to the distance till the longest original (LD) passes the reversesensor is set as the jam pulse.


41/120

7-1October 2000 TOSHIBA TEC MR-3011/3012 SIZE DETECTION

7. ORIGINAL SIZE DETECTION

Original size is detected when it is sent out of the tray, and informed (unit:mm) to the copier before the start ofthe scanning of the original.

7.1 Method of Original Size Detection (for Standard Sized Originals)1) Width

When the original waiting at the pre-feeding position has started to be fed and its leading edge reaches thefirst small roller of the read roller, its width of the original is detected using the original width sensors 1 and 3and the size data are saved in EPROM.

2) Size along feeding directionWhen the trailing edge of the original (original size: LT of smaller) is detected by the original length sensorbefore the read sensor detects the leading edge of the original, or when the original length sensor hasalready detected the original (original size: B5-R or larger) when the read sensor detects the leading edge ofthe original, the original size along the feeding direction is assumed with the width size data saved inEPROM, then the size data are sent to the copier. At this time, the date for the size along the feedingdirection are sent first.With an original whose length is irregularly long, if the size along the feeding direction is not determined bythe scanning operation is started, the read motor counts the of distance pulses after the scanning operationis started till the trailing edge of the original is detected by original length sensor. Then the motor sends themeasured value to the copier.

Original size: LT or smaller

1) Timing to determine width

2) Timing to determine size along feeding direction


42/120


Size: B5-R or larger

1) Timing to determine width

2) Timing to determine size along feeding direction


43/120


7.2 Relation between Status of Sensor and Original Size (for Standard SizedOriginals)

[For JE](mm)

[For UC](mm)

Originalwidth

sensor 1

OFFOFFOFFOFFOFFOFFOFFONON

Originalwidth

sensor 2

OFFOFFOFFOFFOFFONON

ON/OFFON/OFF

Originalwidth

sensor 3

OFFOFFONONON

ON/OFFON/OFFON/OFFON/OFF

Tray

sensor

ON/OFFON/OFFON/OFF

OFFON


Original length

sensor

OFFONOFFONONOFFONOFFON

Original sizedata

(Widthwisedirection)148182297210210257257297297

Original sizedata

(Feedingdirection)210257210297330182364210420

Originalsize

detected

A5RB5RA4

A4RFOLIO

B5B4A4A3

Originalwidth

sensor 1

OFFOFFOFFOFFOFFOFFOFFONON

Originalwidth

sensor 2

OFFOFFOFFOFFOFFONON

ON/OFFON/OFF

Originalwidth

sensor 3

OFFOFFONONON


Traysensor

ON/OFFON/OFFON/OFF

OFFON


Original length

sensor

OFFONOFFONONOFFONOFFON

Original sizedata

(Widthwisedirection)

140280216216216280258280280

Original sizedata

(Feedingdirection)

216432216280356216356216432

Originalsize

detected

STRLD

8.5 8.5LTRLGLT

COMPUTER

LTLD


44/120


7.3 Method of Original Size Detection (for Mixed Sized Original)1) Width

Width is detected by original width sensors 1,2 and 3 and the size data are saved when an original waitingat the pre-feeding position has started to be fed and its leading edge reaches the first small roller of the readroller.

2) Size along the feeding directionWith original whose width is any of 210mm/216mm, if the original length sensor has already detected theoriginal when the read sensor detects the leading edge of the original, reverse operation is performed to

determine the size along the feeding direction. The read motor counts the pulse of the distance pulses till theoriginal length sensor detects the trailing edge of the original. Original size is determined by the result ofcounting and threshold of size along the feeding direction, then size data are sent to the copier. At this time,data of the size along the feeding direction are sent first.The size along the feeding direction of B5-R or smaller originals is determined as with other standard sizedoriginals. (reverse operation is performed after the size is determined.)

1) Timing to determine the width

2) Timing to determine the size along the feeding direction


45/120


7.4 Relation between Status of Sensor and Original Size (for Mixed SizedOriginals)

[For JE](mm)

[For UC](mm)

Originalwidth

sensor 1

OFF

OFF

Originalwidth

sensor 2

OFF

OFF

Originalwidth

sensor 3

ON

ON

Traysensor

OFF

ON

Originallengthsensor

ON

ON

Original sizedata


216

216

Original sizedata

(Feedingdirection)

280318356

Originalsize

detected

LTR

LG

Threshould size of feeding direction

Originalwidth

sensor 1

OFF

OFF

Originalwidth

sensor 2

OFF

OFF

Originalwidth

sensor 3

ON

ON

Tray

sensor

OFF

ON

Originallength

sensor

ON

ON

Original sizedata


210

210

Original sizedata

(Feedingdirection)

297313.5330

Originalsize

detected

A4R

FOLIO

Threshould of size along feeding direction


46/120

8-1October 2000 TOSHIBA TEC MR-3011/3012 FLOW CHART

8. FLOW CHART

8.1 Power ON Completion of Discharge for Last Original Carried Out

YES

NO

(Feeding Operation)

NO

YES

NO

YES

NO

YES

NO

YES

Standby

Standby

Jam

A

Power ON

completed?

Initialization

started

Initialization

H level?

Feed signal

ON?

Empty sensor

All sensors OFF?

Cover opened?


47/120


NO

YES

(Scanningtwo sides of

original)

NO

YES

(Scanningone side

of original)

NO

YES

NO

NO

YES

YES

NO

YES

NO

YES

YES

NO

YES

NO

Transportsignal

H level?

Duplexmode signalH level?

possible?

Switchback

started?

Switchback

completed?Switchback

Mixedoriginal signal

H level?

Feedingoperation

completed?

Feedingoperation started

Ready for

feeding?

Separation

completed?

Separation

started

is on tray?

Original

E

C

B

D

A

Jam


48/120


(Separation)

YES

YES

NO

NONO

NO

YES

YES

Last original

carried out?

Scanningcompleted?

Ready forseparation?

Next original

is on tray?

Scanning of oneside started

D

B

Standby


49/120


NO

YES

YES

NO

(Feeding operation)

YES

YES

YES

NO

YES

NO

NO

NO

YES

NO

YES

NO

NO

NO

YES

YES

Last original

finished

Is there

a separated

original ?

Reverse discharge

started

Transport signal

H level?

Scanning of backside of original

started

Back side scanningcompleted?

Reverse

feeding completed?

Reverse feeding

started

Back sideregistrationcompleted?

Registration forback side of

original started

Separation

completed?

Separation

started

Scanning offront side

completed?

Ready for

separation?

Next original

is on tray?

Scanning offront side of

original started

Standby

E

C


50/120


8.2 Initialization Control

NO

YES

YES

NO

NO

YES

YES

NO

YES

NO

YES

NO

NO

YES

Jam

Initializationcontrol

completed

Initialization

control

All sensorsOFF?

Exit sensor

ON?

Read sensor

ON?

Reverse sensorON?

Originalwidth sensor

ON?

Original length

sensor ON?

Registrationsensor ON?

Certain period

of time

Certain period

of time Read motor

stopped

Read motorrotates for a certainnumber of pulses

Read motor

forward rotation

Reverse motor

stopped

Reverse motorrotates for a certainnumber of pulses

Reverse motor

reverse rotation

Feed motor

stopped

Feed motor

braked

Feed motor rotatesfor a certain

number of pulses

Feed motor

reverse rotation


51/120


8.3 Control for Operation of Pickup Roller

NO

YES

Control for pickup

roller operation

completed

Control

Feed motor

stopped

Certain period

of time

Feed motor

braked

Feed motor rotates

for a certain

number of pulses

Feed motor

forward rotation

Empty sensor

ON?


52/120


8.4 Control for Feeding Operation

NO

YES

NO

YES

NO

NO

YES

YES

Control for feeding

operation completed

Feeding operation

control

Pickup roller

lowered

Feed motor

stopped

Certain periodof time

Read motor

stopped

Read motorrotates for a certainnumber of pulses

Read sensor

ON?

First page?

Read motor

forward rotation

Feed motor

braked

Original length

sensor OFF?

Feed motor

reverse rotation

Certain period

of time

Feed motor

braked

Feed motorrotates for a certainnumber of pulses

Feed motor

reverse rotation

Feed motor

stopped?


53/120


8.5 Control for Separation

NO

YES

NO

YES

Control separation

completed

Control for

separation

Feed motor

stopped

Certain period

of time

Feed motor

braked

Feed motor rotates

for a certain

number of pulses

Registration

sensor ON?

Feed motor

forward rotation

Feed motor

stopped?


54/120


8.6 Control for Switchback Operation

NO

YES

NO

YES

NO

YES

Control for

switchback

operation completed

Switchback

control

Read motor

stopped

Read motor rotates

for a certain

number of pulse

Read sensor

ON?

Read motor

forward rotation

Read motorstopped

Read motor

rotates for a certain

number of pulse

Certain period

of time

Read sensor

OFF?

Read motor

reverse rotation

Read motor

stopped

Read motor rotatesfor a certain

number of pulse

Original length

sensor OFF?

Read motorforward rotation


55/120


8.7 Control for One Side Scanning

NO

YES

NO

YES

NO

YES

NO

YES

Control for oneside scanning

completed

One side scanningcontrol

Scanning

completed


number of pulses

Read sensor

OFF?

Scanning

started


number of pulses

Read motor

stopped


number of pulses

Exit sensor

OFF?

Last original?

Exit sensor

ON?

Read motor

forward rotation


56/120


8.8 Control for Front Side Scanning

NO

YES

NO

YES

NO

YES

Control forfront side

scanning completed

Front side

scanning control

Read motor rotates

for a certain

number of pulses

Reverse sensor

ON?

Scanning

completed

Read motor rotates

for a certain

number of pulses

Read sensor

OFF?

Scanning

started

Read motor rotates

for a certain

number of pulses

Certain period

of time

Read motor

stopped

Reverse motor

stopped

Reverse motor


number of pulses

Reverse sensor

OFF?

Reverse motor

forward rotation?

Reverse solenoid

ON

Read motor

forward rotation


57/120


8.9 Control for Reverse Feeding

NO

YES

Control for

reverse

feeding completed

Reverse

feeding control

Read motor

and reverse

motor stopped

Read motor and

reverse motor

rotate for a certain

number of pulses

Read sensor

ON?

Reverse motor

reverse rotation

Read motor

forward rotation


58/120


8.10 Control for Back Side Registration

NO

YES

Control for back side

registration completed

Back side

registration command

Certain period

of time

Reverse motor

stopped

Reverse motor


number of pulses

Reverse sensor

ON?

Reverse motor

reverse rotation


59/120


8.11 Control for Back Side Scanning

NO

YES

NO

YES

Control forback side scanning

completed

Control for

back side scanning

Scanning

completed


number of pulses

Read sensor

OFF?

Scanning

started

Read motorrotates for a certain

number of pulses

Certain period

of time

Reverse solenoid

OFF

Reverse motor

stopped

Reverse motorrotates for a certain

number of pulses

Read motor

stopped

Reverse sensorOFF?

Reverse motor

forward rotation

Reverse motor

stopped

Reverse motorrotates for a certain

number of pulses

Reverse motor

reverse rotation

Read motor

foward rotation


60/120


8.12 Control for Reverse Discharge

NO

YES

NO

YES

NO

YES

YES

NO

NO

YES

Control forreverse discharge

completed

Control for

reverse discharge

Read motor

stopped

Read motor


number of pulses

Exit sensor

OFF?

Last original?

Reverse motor

stopped

Reverse sensor

OFF?

Last original?

Feeding operation

started

Reverse motor


number of pulses

Reverse sensor

ON?

Read motor

forward rotation

Reverse motorreverse rotation


61/120

9-1October 2000 TOSHIBA TEC MR-3011/3012 TIMING CHART

9. TIMING CHART

9.1 DP1600 Three A4 sheets single-side feeding

0.18

0.18

1.68

4.74

0.24

0.21

0.24

0.21

1.68

1.64

0

.45

0.10

2.97

0.55

0.55

4.71

0.08

0.080

.08

0.08

2.93

2.93

0.49

0.08

0.08

0.08

0.08

4.38

4.38

2.00

1.94

1.581

.58

1.58

1.48

1.48

2.94

2.23

1.73

0.74

0.49

0.17

4

.39

3.69

3.19

2.02

1.86

1.66

1.50

1.46

0.93

0.43

0.39

0.17

2.65

4.38

1.97

1.42

1.97

1.42

3.41

2.53

0.09

2.53

0.09

3.99

1.56

3.50

0.72

0.51

2.10

1.95

0.37

2.93

0.56

4.38

2.00

1.46

0.27

CCW(M)

CW(H)

Exposuretime

Exposuretime

CCW(H)

CW(L)

STOP

RDMOT

CCW(H)

CCW(L)

CW(L)

CW(H)

STOP

RVMOT

Exposuretime

OFF

ON

EMP-SNS

OFF

ON

EXIT-SNS

OFF

ON

RVR-SNS

OFF

ON

READ-SNS

OFF

ON

REG-SNS

OFF

ON

LENG-SNS

OFF

ON

RSOL

LHLH LHLHLHLHLH

0

0

SCN-STR

STOP

CCW(L)

CW(H)

CW(L)

FMOT

0

ORG-TR

ORG-FAC

PRE-FED

ORG-STP

DF-ACT

ORG-IN


62/120


9.2 DP1600 Two A4 sheets duplex feeding

2.9

3

2.5

5

2.4

5

2.9

3

0.9

5

2.4

6

0.9

5

1.6

8

1.6

9

1.0

5

0.9

5

0.6

6

4.5

0

2.8

0

1.4

4

2.8

4

1.5

4

1.0

5

0.9

5

0.6

6

4.0

4

2.0

2

2.0

2

1.0

5

0.9

5

0.6

6

4.50

2.8

4

2.8

0

1.5

4

1.4

4

1.0

5

0.9

5

0.6

6

3.2

8

2.4

8

1.0

3

2.8

02

.84

1.5

2

0.9

2

0.9

2

2.4

6

2.4

2

1.0

3

0.9

2

2.8

4

2.8

0

1.5

2

0.9

2

1.6

8

1.6

4

0.4

5

2.5

2

0.9

4

3.1

7

2.8

32.8

3

2.8

3

2.7

3

2.7

3

0.9

4

2.7

8

2.4

52.4

5

2.4

5

2.3

5

2.3

5

0.9

4

3.1

6

0.9

4

2.8

32.8

3

2.8

3

2.7

3

2.7

3

2.0

0

1.9

4

1.5

91.5

9

1.5

9

1.4

9

1.4

9

0

.10

2.3

6

2.0

8

1.5

8

2.1

9

1.9

4

1.6

6

1.5

01

.46

0.9

3

0.4

3

0.3

9

0.1

7

2.2

8

2.3

8

1.5

0

2.3

8

1.5

0

2.0

0

1.1

2

0.9

2

3.9

8

3.1

8

1.1

2

0.9

2

3.5

8

2.0

0

1.1

0

0.9

0

3.98

3.1

8

1.1

2

0.9

2

2.8

0

5.1

6

2.7

4

5.2

4

2.8

6

5.1

6

2.7

4

4.0

0

1.5

8

2.7

5

2.1

8

1.9

7

0.3

7

2.3

6

1.9

8

1.4

7

0

.27

Ex

posu

retime

Ex

posu

retime

Exp

osu

retime

Ex

posu

retime

0

0

0

0

0

CCW(M)

CW(M)

CCW(H)

CW(H)

CW(L)

STOP

RDMOT

CCW(M)

CCW(L)

CCW(H)

CW(L)

CW(H)

STOP

RVMOT

OFF

ON

EMP-SNS

OFF

ON

EXIT-SNS

OFF

ON

RVR-SNS

OFF

ON

READ-SNS

OFF

ON

REG-SNS

OFF

ON

LENG-SNS

OFF

ON

RSOL

LHLH LHLHLHLHLH

SCN-STR

STOP

CCW(L)

CW(H)

CW(L)

FMOT

ORG-TR

ORG-FAC

PRE-FED

ORG-STP

DF-ACT

ORG-IN


63/120


9.3 DP2500 Three A4 sheets single-side feeding

0.1

7

0.1

7

1.6

8

1.5

81

.58

2.1

7

0.0

7

1.7

8

3.4

7

0.0

7

0.0

70

.07

0.0

7

3.6

6

3.6

6

1.7

8

0.3

6

0.0

7

0.0

7

0.0

7

0

.10

3.6

6

3.6

6

1.8

8

1.9

2

1.5

8

1.4

8

1.4

8

3.4

7

0.1

4

0.1

2

0.1

4

0.1

2

1.6

8

1.6

4

0.4

5

3.2

3

1.4

2

1.0

6

1.4

2

1.0

6

2.96

1.8

5

0.0

4

1.8

5

0.0

4

3.3

8

1.5

6

0.5

4

0.5

1

0.3

7

2.0

5

1.8

9

0.3

7

2.1

4

3.6

2

1.9

3

1.4

6

0.2

7

2.1

2

1.6

1

1.0

9

0.5

2

0.3

4

0.1

4

3.6

8

3.6

3

3.1

1

2.6

2

2.0

2

1.8

6

1.6

6

1.5

0

1.4

6

0.9

3

0.4

3

0.3

9

0.1

7

0.4

1

1.9

4

Exposure

time

Exposure

time

Exposu

retime

0

0

0

CCW(M)

CW(H)

CCW(H)

CW(L)

STOP

RDMOT

CCW(H)

CCW(L)

CW(L)

CW(H)

STOP

RVMOT

OFF

ON

EMP-S

NS

OFF

ON

EXIT-S

NS

OFF

ON

RVR-S

NS

OFF

ON

READ-S

NS

OFF

ON

REG-S

NS

OFF

ON

LENG-S

NS

OFF

ON

RSOL

LHLH LHLHLHLHLH

SCN-S

TR

STOP

CCW(L)

CW(H)

CW(L)

FMOT

ORG-T

R

ORG-F

AC

PRE-F

ED

ORG-S

TP

DF-A

CT

ORG-I

N


64/120


9.4 DP2500 Two A4 sheets duplex feeding

1.8

4

0.8

6

0.7

6

0.4

8

2.6

5

3.9

2

2.7

0

1.3

82

.76

2.6

62.6

6

2.2

9

2.3

9

2.2

92.2

9

2.7

5

2.6

52.6

5

0.10

1.6

8

1.5

81.5

8

1.2

60

.86

0.7

6

0.4

8

3.4

6

0.7

4

2.3

1

1.6

8

0.7

4

1.8

4

0.8

6

0.7

6

0.4

8

3

.92

2.7

0

2.6

5

1.3

8

1.2

6

0.8

6

0.7

6

0.4

8

2.8

6

2.3

4

0.7

6

2.9

2

2.6

6

2.5

6

2.5

6

0.7

7

2.5

4

2.9

3

2.2

9

2.1

9

2.1

9

0.7

7

2.6

5

2.5

5

2.5

5

0.7

6

1.9

2

1.8

8

1.5

8

1.4

8

1.4

8

2.1

9

1.9

0

1.4

0

2.0

2

1.8

6

1.6

6

1.5

0

1.4

6

0.9

3

0.4

3

0.3

9

0.1

7

2.1

2

2.2

1

1.3

2

2.2

1

1.3

2

1.8

5

0.9

4

0.7

4

3.5

4

2.9

4

0.9

4

0.7

4

3.1

5

1.8

5

0.9

4

0.7

4

3.54

2.9

4

0.9

4

0.7

6

2.5

3

4.4

1

2.5

7

4.0

1

2.2

4

4.4

1

2.5

7

3.3

9

1.5

7

2.5

3

2.0

5

1.8

9

0.3

7

2.1

8

1.9

6

1.4

7

0

.27

2.3

4

0.9

0

0.7

6

2.6

5

0.7

7 1.3

8

2.7

0

2.3

1

2.2

6

0.9

0

0.7

6

2.7

0

2.6

5

1.3

8

0.7

7

1.6

8

1.6

4

0.4

5

Ex

posu

retime

Ex

posu

retime

Exp

osu

retime

Ex

posu

retime

0

0

0

0

0

CCW(M)

CW(H)

CCW(H)

CW(L)

STOP

RDMOT

CCW(H)

CCW(L)

CW(L)

CW(H)

STOP

RVMOT

OFF

ON

EMP-SNS

OFF

ON

EXIT-SNS

OFF

ON

RVR-SNS

OFF

ON

READ-SNS

OFF

ON

REG-SNS

OFF

ON

LENG-SNS

OFF

ON

RSOL

LHLH LHLHLHLHLH

SCN-STR

STOP

CCW(L)

CW(H)

CW(L)

FMOT

ORG-TR

ORG-FAC

PRE-FED

ORG-STP

DF-ACT

ORG-IN


65/120


9.5 DP3500/4500 Three A4 sheets single-side feeding

1.2

1

0.0

80.1

8

0.0

8

1.0

6

0

.02

1.0

6

1.9

7

1.1

2

0.0

80

.08

1.2

0

1.2

0

0.2

0

0.2

0

1.2

7

0.1

8

0.0

8

0.1

8

0.0

80.0

8

0.0

8

2.2

4

2.2

4

1.2

4

1.2

3

1.1

31.1

3

1.1

3

1.0

1

1.0

1

0

.10

1.1

7

0.8

7

0.6

0

0.4

2

0.1

8

0.1

5

2.2

3

1.9

3

1.6

6

1.4

3

1.2

4

1.2

1

1.0

5

1.0

1

0.7

0

0.4

3

0.3

9

0.1

7

1.9

7

0.1

0

0

.08

0.1

0

1.1

3

0.0

8

1.1

1

0.4

4

1.83

1.8

2

0.7

9

0.6

1

0.7

9

0.6

1

0.0

2

2.0

7

1.0

4

0.2

2

0.3

3

0.2

2

1.3

8

1.2

4

0.3

6

1.1

6

0.2

5

2.2

1

1.2

8

0.9

9

0.2

7

Exposure

time

Exposure

time

Exposure

time

0

0

0

CCW(H)

CW

STOP

RDMOT

CCW

CW(L)

CW(H)

STOP

RVMOT

OFF

ON

EMP-S

NS

OFF

ON

EXIT-S

NS

OFF

ON

RVR-S

NS

OFF

ON

READ-S

NS

OFF

ON

REG-S

NS

OFF

ON

LENG-S

NS

OFF

ON

RSOL

LHLH LHLHLHLHLH

SCN-S

TR

STOP

CCW(L)

CW(H)

CW(L)

FMOT

ORG-T

R

ORG-F

AC

PRE-F

ED

ORG-S

TP

DF-A

CT

ORG-I

N


66/120


9.6 DP3500/4500 Two A4 sheets duplex feeding

1.8

7

0.2

2

0.2

2

0.2

2

0.2

2

2.1

3

1.9

3

1.9

32.0

3

2.0

3

2.0

32

.03

2.6

8

0.3

8

0.3

8

2.0

3

1.7

8

1.7

3

1.6

3

1.5

3

1.5

31

.63

1.6

3

1.9

9

1.7

3

1.5

31

.531

.63

1.6

3

1.6

3

1.1

3

1.2

1

1.1

11.1

1

1.1

1

0.4

2

0.4

2

0.4

2

0.4

2

1.0

1

1.0

11

.24

1.7

5

2.1

5

1.2

7

1.7

5

2.1

2

0.5

5

0.4

2

1.6

3

1.5

8

0.8

3

0.4

1

2.0

3

2.0

1

0.5

5

0.4

2

1.5

81

.63

0.8

3

0.4

1

1.9

2

1.6

1

1.3

4

1.4

3

1.2

4

1.2

1

1.0

5

1.0

1

0.7

0

0.4

3

0.3

9

0.1

7

1.1

3

1.1

1

0.1

0 0.4

4

1.6

1

0.5

2

0.4

2

1.6

3

1.5

8

0.8

3

0.7

9

0.5

2

0.4

2

1.6

1

0.5

2

0.4

2

1.6

3

1.5

8

0.8

3

0.7

90

.52

0.4

2

1.9

9

0.9

8

1.9

9

0.9

8

1.5

9

1.5

7

0.5

7

0.3

8

2.1

1

1.7

6

0.5

7

0.3

8

2.4

9

1.5

7

0.5

7

0.3

8

2.1

1

1.7

6

0.5

7

0.3

8

2.5

9

1.5

1

2.9

8

1.9

5

2.5

9

1.5

1

2.0

7

1.0

4

2.1

3

1.3

8

1.2

4

0.3

6

1.9

0

1.3

2

0.9

9

0.2

7

Ex

posu

retime

Ex

posu

re

time

0

Ex

posu

retime

Ex

posu

retime

0

0

0

0

CCW(H)

CW

STOP

RDMOT

CCW

CW(L)

CW(H)

STOP

RVMOT

OFF

ON

EMP-S

NS

OFF

ON

EXIT-S

NS

OFF

ON

RVR-S

NS

OFF

ON

READ-S

NS

OFF

ON

REG-S

NS

OFF

ON

LENG-S

NS

OFF

ON

RSOL

LHLH LHLHLHLHLH

SCN-S

TR

STOP

CCW(L)

CW(H)

CW(L)

FMOT

ORG-T

R

ORG-F

AC

PRE-F

ED

ORG-S

TP

DF-A

CT

ORG-I

N


67/120

10-1October 2000 TOSHIBA TEC MR-3011/3012 DESCRIPTION OF CIRCUITS

10. DESCRIPTION OF CIRCUITS

10.1 Input Circuits for Original Length Sensor, Read Sensor and ReverseSensor

Since original length sensor, read sensor and reverse sensor have almost the same circuit configurations (thereference voltage of comparator for read sensor input circuit can be set by D/A output), the input circuits for the

read sensor and reverse sensor are not described. The following is the input circuit for the original length sensor.

This circuit is an input circuit for the original length sensor and consists of a voltage-current conversion circuitwhich adjusts the amount of light of the infrared LED and the voltage comparison circuit which compares thevoltage output from a phototransistor (PTR) with a reference voltage and converts the output voltage into digitalsignals.The original length sensor is a mirror reflection sensor, and consists of a pair of emission elements (infraredLEDs) and a light receiving element (PTR). Both elements have a light axis running in the same direction. Thereis a mirror on the extended light axis of these elements. When there is no original between the elements and themirror, infrared light emitted from LED is reflected by PTR in high reflectance. If there is an original, light emis-sion to the mirror and reflected light from the mirror are blocked by the original, and the reflected light enteringPTR becomes extremely small.When a large amount of light is entering PTR (this means there is no original) the optical current flowing in thePTR is increased, and the voltage of IC3-10pin becomes higher due to a drop in voltage caused by R44. IC3 is acomparator which compares the reference voltage input to 11pin (non-reverse input terminal) with the signalvoltage of 10pin (reverse input terminal). If the voltage of 10pin is higher, the output level (IC3-10pin) is "L". Onthe contrary, when the amount of the incoming light is small (this means there is an original), the voltage of IC3-10pin is low and the level becomes "H". R16, C6 and C7 are noise filters. This circuit has an automatic sensitivityadjustment function to control the unevenness of the sensor sensitivity. Uneven sensor sensitivity is corrected bycontrolling the machine to have a constant PTR voltage when there is no original. The intensity of the infraredlight emitted from the LEDs is changed to adjust the PTR voltage.When the sensor sensitivity adjustment mode is selected, the PTR output voltage (analog value) is measured bythe A/D input terminals of the CPU (scanner side). The D/A output voltage of

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