mgcs040711g0

ORDER NO. MGCS040711G0

Digital Imaging SytemsDP-1520P/1820P/1820E

Please file and use this mOrder No. MGCS040101

This service information is dIt does not contain warningsProducts powered by electrior repair the product or prod[ Version 1.0 ]

anual together with the DP-1520P/1820P/1820E service manual and parts manual, C0.

esigned for experienced repair technicians only and is not intended for use by the general public. or cautions to advise non-technical individuals of potential dangers in attempting to service a product.city should be serviced or repaired only by experienced professional technicians. Any attempt to service ucts dealt within this service information by anyone else could result in serious injury or death.

WARNING

2004 Panasonic Communications Co., Ltd. All rights reserved. Unauthorized copying and distribution isa violation of law.

The contents of Published in Jap

General Annotations1. Panasonic Digital Document Company and other Panasonic Sales Companies reserve the right to change any information enclosed herein without prior notification. (This includes, but is not limited to, parts pricing, availability, and text)

2. Electrical parts supplied may include previously used components.

3. Important Safety Notice Components i When replacin

4. In Remarks co the discontinu a specific perio assembly, and After the end o

5. This Product Information re

Distinction oPCBs (mthe PCB

Caution: Pb free

point is control a tempera or dama

Pb free ECO SO

URL: httthis Parts Manual are subject to change without notice.an.

dentified by a mark, have special characteristics important for safety.g any of these components, use only manufacturers specified parts.

lumn, "RTL" indicates that the Retention Time is limited for this item. After ation of this assembly in production, the item will continue to be available for d of time. The retention period of availability is dependant on the type of in accordance with the laws governing part and product retention. f this period, the assembly will no longer be available.

Uses Lead (Pb) Free Solder Printed Circuit Boards (PCBs).garding Lead-Free (PbF) solder;

f PbF PCB:anufactured) using lead free solder will have a mark following part numbers in a label on the PCB.

solder has a higher melting point than standard solder; typically the melting 50 - 70 F (30 - 40 C) higher. Please use a soldering iron with temperaturend adjust it to 700 20 F (370 10 C). Exercise care while using higher ture soldering irons, do not heat the PCB for too long to prevent solder splashge to the PCB.solder will tend to splash when heated too high (about 1100 F/600 C).LDER M705 (available from Senju Metal Industry Co., Ltd.;

p://www.senju-m.co.jp) is recommended when repairing PbF PCBs.

Table of Contents

3

System Description .................................51.1. System Block Diagram .............................5

Electrical Circuit Explanation .................72.1. SC PC Board

(System Control Circuit)............................72.2. SPC PC Board

(Scanner and Printer Circuit) ....................92.3. PNL PC Board Block Diagram

(Panel PCBs) .........................................132.4. Shut Down / Sleep Mode .......................142.5. Option PC Board.....................................14

Signal Waveform....................................153.1. Glossary of Electrical

Abbreviations ..........................................153.2. SC PC Board ..........................................223.3. SPC PC Board........................................293.4. PNL1 PC Board ......................................483.5. PS PC Board ..........................................583.6. ADF PC Board ........................................593.7. CST2 PC Board ......................................643.8. CST3 PC Board ......................................683.9. FXB PC Board ........................................743.10. MJR PC Board........................................76

Schematic Diagram ...............................774.1. General Circuit Diagram .........................774.2. SC PC Board ..........................................784.3. SPC PC Board........................................914.4. PNL1 PC Board ....................................1004.5. ADF PC Board ......................................1054.6. CST2 PC Board ....................................1074.7. CST3 PC Board ....................................1084.8. FXB PC Board ......................................1114.9. MJR PC Board......................................115

Electrical Circuit Diagram & Parts List ..............................................117

5.1. Destination Codes ................................1175.2. SC PC Board [RTL/PbF].......................1185.3. SPC PC Board [RTL/PbF] ....................1395.4. PNL1 PC Board [RTL/PbF]...................1565.5. ADF PC Board [RTL/PbF].....................1635.6. CST2 PC Board [RTL/PbF]...................1655.7. CST3 PC Board [RTL/PbF]...................1665.8. FXB PC Board [RTL/PbF].....................170

5.9. MJR PC Board [RTL/PbF] .................... 177

DP-1520P/1820P/1820E

SEP 2004Ver. 1.

11.1.

LCD128x32

Control Panel

System

PNL1

V850ES/KG1PNL Control

CPU

8MHz

kup

100Base-Tx

CST3

32.768KHz

BATTERY

SC

(Program)bit16

SC PCB

LVPS

S/P

OPTION

CL2

DCM

POW

+3.3V

2.5V REG300mA

+2.5V(PPC)

+5V

+24V

1.5V REG300mA

+1.5V(ISIS2)

1.8V REG300mA

+1.8V(SP2)

r

r

r

Intermediate Roller ClutchPaper Feed Clutch

3

Jam Cover SensorRegistration Sensor

2

CL2

3

2

CST2

3rd PAPER TRAY

4th PAPER TRAY

LED

KEY

PNL4(One-Touch Key for Fax Option)

KEY

+5V

+5V

p+2

4V

FXB (option)

Speaker

MJR

Line

Telephone

CODECMN86065

MODEM195006

RJ11

RJ11

Ring

Analog

DAAFAXOPTION

RTC

Controller

3rd Tray Drive Motor

DCM 3rd Tray Lift Motorr DCM

PNL2,3

TouchBuzzer

+5VD

+5Vp

BZ

t (Japan only)

2nd Tray Detection SensorNo Paper SensorUpper Limit Sensor

Intermediate Roller ClutchPaper Feed Clutch

Jam Cover SensorRegistration Sensor

4th Tray Lift Motor

2nd Tray Detection SensorNo Paper SensorUpper Limit Sensor50

System DescriptionSystem Block Diagram

DP-1520P/1820P/1820E System Block Diagram

Power Supply

Scanner

Mechanical Controli-ADF

Power PC405PM200MHz

APPIDZAC000332

SIO3ch

PCIC

INTC

USB1.1

MAC

1284C

ISIS2

PCICPCI BUS 33MHz

PRINT

ATC

DRAMC

DRAMC

SCAN

SDRAM256Mbit16

SDRAM128Mbit16

DRAMCARD

16/64/128MB OPTION

SuperPYXION2

PWMPM1075

UDMA66

INTC

CCD

AFELM98513

RESET

M16C/80Mech Sub CPU

26.74758MHz

LVPS

FROM PROGRAM

4Mbit

SPC

8

DRAMC

FROM (Image)16Mbit16

FROM(BOOT)4Mbit8

FROM (Program)32Mbit16

FROM(Program)64Mbit16

EXBUS

PLCC SOCKET

16

16

16

8

Image/System Bac

Main

32

Fax ImageDownload

OPTION

PLL

10Base-T/

72P SO-DIMM

SOLSOL STAMP Solenoid (OPTION)

Home Position Sensor

ADF/Cover Open Detection Sensor

Angle Sensor

LM

Scannig Motor

HVPS

Duplex Sensor

CSS REMOTE

SIO2ch

RJ45

ASICMech Control

PLLSYSTEM

JTAG

1284

Page Memory

Sort Memory

PLLIMAGE

PRINTER I/F

RST

HDD40P

PCICLK3

OPTION Sort Memory

nINTSIO0

nINTISISnINTSIO1

Modulated

GPIO

IIC

PS +5V+24V

+5V+5VD

+24V

EEPROM(MAC)FM93C46

JTAG JTAG

RS-232 BUFFER

RS-232 BUFFER

PC for Debug

FRM8FROM

64M

16

FRM8

SDRAM256Mbit16 Standard

64MB

4MB

2MB

PS/PCLPCL Program(Japan only)

16MB

32MB

18.5MHz

+5V 12V REG +24V

5V REG+5VL

Power WS

LVDSSN65LVDS1DBV

CCD

16P

Risc Trace

CSS REMOTE

DONGLE1-3

clock syncro

+5Vp

SDRAM256Mbit16

USB1.1

USB-B

Printer I/F

16

SYSTEMRESET

20P

CL2

DUPLEX

FANHTC

SOL Duplex Solenoid

Registration Roller SensorPaper Exit Sensor

Main Unit

ADF

ADM

PANEL DOWNLOAD

I/O

FIFO

HDD

ATA 80GB

PSU(5V/12V)

DC12

+24V+5VD

33.1776MHzCLOCK GEN

CY2581216.5888MHz CLK

BUFFER

FROM CARD4/8MBOPTION

PCMCIA SOCKET

CLOCK GENCY2581116.5888MHz

16.5888MHz

LAMP

INVERTER

CL3

Original Length Sensor 2

Eject SensorDuplex Eject SensorADF Exit Cover SensorOriginal Detection SenosrADF Cover Open Detection SensorRead Point Sensor

Inverting Roller ClutchADF Roller ClutchFeed2 Roller Clutch

Release Lever Plate SolenoidReversing Guide1 SolenoidDuplex2 Guide SolenoidSTAMP Solenoid (OPTION)

ADF Motor

3

ADF

ADM

CL

Original Length Sensor 2

ADF Roller Clutch

ADF Motor

ADF

Scanner Motor Driver

SLA7044

LSU

PM

BD

LD

SLA7042

MotorDriver

MotorDriver

SLA7042

SNS

6

5

2 2

SRAM256kbit

SRAM256kbit

16.588MHzSSCG

Unmodulated

DRUM

D/AConvert

DCM Main Motor

DCMBottle Motor

CLorSOL

Bypass Feed Solenoid

PCLLED

Total Counter

99 9

CL2

Paper Feed ClutchRegistration Roller Clutch

WTS

Waste Toner FullBottle Detect

2nd Tray DetectionSensorNo Paper SensorUpper Limit Senso

Thermistor

3

Toner Density Sensor

SNSSize Sensor 22

SNSSize Sensor 22

SSN

Size Sensor2

Bypass Feed No Paper SensorBypass Feed Sensor

MULTI FEED

Intermediate RolleClutch

Paper Feed Clutch

3

Jam Cover SensorRegistration Senso

2

1st Tray Detection SensorNo Paper SensorUpper Limit Sensor

3

key Counter

CST2

2nd PAPER TRAY

ADF

Original Detect

RLB

SW

Heater

SWINLET

ADF Motor Dr

PHYDP83847

25MHz

DCM1st Tray Lift Motoe

DCM 2nd Tray Lift Moto

CODEC

+3.3V

SYSCLK

PCICLK1PCICLK3

nINTPCIOnINTATA

48.0MHz

MCLKI

Toner Bottle Home Position Sensor

FAN

4P

PCL Fon

Heater

Size Sensor3 (Japan)

Open Detect

t

o

S

P

C

t

o

S

P

C

LevelChange

DP-1520P/1820P/1820E

SEP 2004Ver. 1. 60

memo

DP-1520P/1820P/1820E

Ver. 1.0

2 Electrical Circuit Explanation2.1. SC PC Board (System Control Circuit)

1. System CPUThe System CPU (PPC405PM) is a 32-bit RISC (Reduced Instruction Set Computer) type of CPU andEBC Control (ROM/SRAM), PC100 SDRAM Control, PCI Control, DMA Control, Serial Communication Port, Timer, Interrupt Control, Ethernet MAC and IIC Control are integrated into 1 chip. The EBC is connected to the Power-on Boot space. The 405 processor will begin with an initial fetch to address 0xFFFFFFFC. The EBC is setup to respond to this Boot address and the request is directed to bank 0. This bank must have a ROM attached with the Boot code to begin the processor execution.

EBC ControlA 7-port peripheralBoot ROM (IC12)Main Program F-RSystem Backup F-API (IC11)Option Card Slots Option FAX Board

SDRAM ControlGenerates High Sp

PCI ControlA 6ch PCI control bImaging ASIC (ISIS

Serial CommunicA 3ch Serial CommCPU: Panel Unit (PCPU: Sub CPU forCSS Debug Port fo

Timer ControlUsed to program th

Interrupt ControlControls receipt &

I/O Port (DZAC00Used to control line

Ethernet MACSupports Auto-sen

IIC ControlA 1ch IIC Port, use7SEP 2004

bus control, used to transfer data between the following devices.

OM (IC2)ROM (IC3)

(CN62)

eed SDRAM Control Signal and Refresh Control when the power is ON.

us, used to transfer data between the following devices.2)

ation Portunication Port, used to interface the following devices.anel CPU) Scanning and Printing (M16C/80)r PC

e standard timer.

transfer to CPU the interrupt from ISIS2, Modem, LSI, Option, etc.0332)s and reset control around LSI, etc.

sing 10Base-T/100Base-TX, Full / Half Duplex modes.

d to interface for SPC Program Download.

DP-1520P/1820P/1820E

Ver. 1.0

2. System MemoryConsists of the following memory.

F-ROM (IC2: 4MB) used for Main programming. F-ROM (IC3: 2MB) used for System Backup and Data Image Memory.

During a Blackout, backs up the image data. SDRAM (IC13~16) contains the Programs for System Backup and Data Image Memory.

Boot Program and the Main Program execute this Memory. F-ROM (FRM8: 8MB) used for Optional PCL or PS/PCL Programming. F-ROM (FRM8: 8MB) used for Optional Internet Fax Programming.

During a Blackout, backs up the Program.This program can be rewritten via a Network.

3. Optional System MThe Optional Memo

F-ROM (Card) FDuring a Blackout,This program can bThe program can b

F-ROM (FRM8) Memory for expanThis program can b

4. Image Control GatDZAC000331 (ISIS

Scan Data ControUsed to control daScan Control LSI (

Print Data ControUsed to control daPrint Control Drive

Image ControlControls receipt & Conversion.

USB Interface CoUSB 1.1 is support8SEP 2004

emoryries are:-ROM Card (4/8MB) Image Data Memory expansion

backs up the image data.e rewritten by rebooting the main program from this card.e backed up to this card. FRM8 Expansion Memory Board (8MB, 1Slot) Option Program and Font sion e rewritten via a Network.

e Array (ISIS2)2) is a New Image Control Gate Array and provides the CPU peripheral function.lta transfer via the following devices.Super PYXION 2, IC28) Scannerlta transfer a via the following devices.r IC (IC36 and 38) LSU

transfer with ISIS2 for Image Sort and GDI Driver, which includes the JBIG

ntroled.

DP-1520P/1820P/1820E

Ver. 1.0

2.2. SPC PC Board (Scanner and Printer Circuit)1. System Configuration

The SPC PC Board controls all mechanical drivers for the Scanner and Printer.The 16-bit CPU consist of Gate Array, F-ROM for Programming and SRAM for Work area.

2. SC PC Board InterThe Serial and Para

Serial InterfaceSPCRXD: Sends dSPCTXD: ReceiveIICSDA: Sends anIICSCL: Sends and

Parallel InterfacepSENTIM: Main ScpVREQ: Sub ScannSREQ: Scan EnanSACK: Request S

Parallel InterfacenPRDY: Print ReadnVRDY: Request PnPACK: Ready fornATT : Printer StatnDUPACK: ReadynPVSYNC: VerticapPRNT: Print DatapBD_A: Line SyncpSPCRST: Reset SnPRGDWN: Progr

CPUIC2

M30802

GATE ARRAYIC6

DZAL000349

FLASH ROMIC3

MX29F400BTC(512kB)

A0~718,19

A0~19

D0~15

A1~18

D0~15

D0~15

nRDnWRLnWRHnCS0nCS1nCS2nCS3

nRDnWRLnWRHnCS

nOEnWEnCE9SEP 2004

facellel Communication Ports used to interface the following devices.

ata to SC PCBs data from SC PCBd Receives data for Program Updating Receives data clock for Program Updating for Scanneran Synchronous Signal Synchronous Signalble Signalhading Signal for Printeryrint Ready

Paper Feedus Signal for Duplex Paper Feed l Synchronous Signal

hronous Dataignal

am Download Signal

SRAMIC4

LC35256(32kB)

SRAMIC5

LC35256(32kB)

A1~15

A1~15

D0~7

D8~15

nOEnWEnCE

nOEnWEnCE

DP-1520P/1820P/1820E

Ver. 1.0

3. Reset CircuitThis Circuit is controlled by the Reset of IC9 (PST575E) and pSPCRST Signal from the SC PCB.If the 5 VDC Power Supply Voltage drops below 3.9 VDC, this circuit generates a Reset Signal. If the pSPCRST signal from the SC PCB is Low, this Circuit also generates a Reset Signal.

IC9PST575E

pSPC

IC2M30802

R57

C62

R60

Q7

+5V10SEP 2004

RST

5V3. 9V

td tdtd =12.5ms

DP-1520P/1820P/1820E

Ver. 1.0

4. Fuser Control CircuitThe DP-1520P/1820P/1820E Fuser is controlled by the Thermistor and the Fuser Lamp.

CN7211

IC2 +-

RRC D

R

RIC

CN7212R

C

QQ

Q R

R

R DR11SEP 2004

IC5

CN7044QA QA

R

CN70219R

R R R

CR

Q CN7022122 CN702

+24VD

DP-1520P/1820P/1820E

Ver. 1.0

5. LSU Control CircuitConsist of Laser and Polygon Motor Control Circuits.

IC6GATE ARRAY

CN701

pSH_A

pLDEN

nHSYNC

BDCNT

SPC

L+5V

+24VHL

R

R

Q

Q

Q

R

R R

D

3

5

4

6

IC6GATE AR

IC2CPU12SEP 2004

IC1CPU

DA1 +-

LSU

Laser Control

IC8

L+5V

RRRIC

CCC

R

R

R

81

2

RAY

pPMCNT

pPMRDY

nPMCLK

+5V

RR

Q

Q

CN701 LSU+24VHL13

12

10

11

9

PM

PolygonMotor

DP-1520P/1820P/1820E

Ver. 1.0

2.3. PNL PC Board Block Diagram (Panel PCBs) The PNL1 PCB consist of Panel Control CPU, Real Time Clock and other peripherals. It has no decision making functions, which are controlled by Command Signals from the SC PCB.The PNL2 and 3 consist of LED and Switches, which are controlled by PNL1.

CPU (V850)

nWAKUPnSLPKY

PNL SYSTEM DIAGRAM

RTC(REAL TIME

CLOCK)S-3510ANFJ-TF

TXD

BZCLK

RXD

5V

BATLVL

SIO

SCK13SEP 2004

SCN0~11LED0~9

KEYIN0~5

DB[0~7]

LCD Module

PNL3(SW/LED Board)

KEY:26LED:23

LEDCT0,1

A/D

PNL2(SW/LED Board)

KEY:20LED :30

DC/DCConverter

3. 3VIC

3.3V

WR

RD

DP-1520P/1820P/1820E

Ver. 1.0

2.4. Shut Down / Sleep Mode Note:

Shut Down / Sleep Modes can be selected in the User Mode.

This function reduces the power consumption in standby mode. During Shut Down Mode, power is supplied to the Energy Saver Lamp to keep it illuminated, to the circuit that monitors incoming Ringing signals, and to circuits that maintain Deferred communications only. The power is recovered only when an incoming Ringing signal is detected, the time to perform a Deferred communication has lapsed, or the Energy Saver key is pressed.

During Sleep Mode, power is supplied to the Energy Saver Lamp to keep it illuminated, to the circuit that monitors incoming Ringing signals, to circuits that maintain Deferred communications, and to the circuit that monitors incoming PC Pdetected, the time to pePC is detected, or the E

Shut Down Mode

Sleep Mode

2.5. Option PC FXB PC Board

G3 Fax Communicat SDRM PC Board

SDRAM Memory PC16 MB, 64 MB and 12

FRM8 Expansion MeOption Program and

No.

1 When Energy Sa2 Deferred Commu3 Ringing Signal d4 Off Hook (Extern5 When printing fro

6 When an ALARMdisplayed7 When an Origina

No.

1 When Energy Sa2 Deferred Commu3 Ringing Signal d4 Off Hook (Extern5 When printing fro

6 When an ALARMdisplayed7 When an Origina14SEP 2004

rint Data only. The power is recovered only when an incoming Ringing signal is rform a Deferred communication has lapsed, when an incoming print data from a nergy Saver key is pressed.

Board

ion when MJR PCB is installed at the same time.

B Sort Memory.8 MBmory Boad Font Memory for Expansion.

Item Recovers from Shut Down Mode Remark

ver key is pressed Yesnication time has lapsed Yes

etected Yesal Telephone) Yesm a PC No Includes Internet Fax Status indication is No

l is set onto ADF/i-ADF Yes

Item Recovers from Sleep Mode Remark

ver key is pressed Yesnication time has lapsed Yes

etected Yesal Telephone) Yesm a PC Yes Includes Internet Fax Status indication is No

l is set onto ADF/i-ADF Yes

DP-1520P/1820P/1820E

Ver. 1.0

3 Signal Waveform3.1. Glossary of Electrical Abbreviations

Glossary of Electrical AbbreviationsSignal Name Function

+12V +12 VDC Power Supply+24V +24 VDC Power Supply+24VD1 +24 VDC Power Supply+24VFL +20 / +24 VDC Power Supply+24VM +24 VDC Power Supply+24VOPC+24VOPF+3.3V+5v+5VD+5VP+ACT+ALM+DAT+SLPAC(L)AC(N)ACSWADF2ADF3ADF4AGNDBAT+BMCNTBTHPBZ-BZ+C1-C1+C2-C2+C3+C4+CASETCCRMTCPWMCSB1CST2CST3CST4CSTOPCSTOP415SEP 2004

+24 VDC Power Supply+24 VDC Power Supply+3.3 VDC Power Supply+5 VDC Power Supply+5 VDC Power Supply+5 VDC Power SupplyACTIVE Lamp LED Power SupplyALARM Lamp LED Power SupplyDATA Lamp LED Power SupplyEnergy Saver Lamp LED Power SupplyAC Power SupplyAC Power SupplyFuser Relay2nd Paper Tray Feed Roller Drive Signal3rd Paper Tray Feed Roller Drive Signal4th Paper Tray Feed Roller Drive SignalGroundLithium BatteryToner Bottle Motor Control SignalToner Bottle Position Sensor SignalBuzzer SignalBuzzer Signal (+)Capacitor 1 Negative Connection Pin for ConverterCapacitor 1 Positive Connection Pin for ConverterCapacitor 2 Negative Connection Pin for ConverterCapacitor 2 Positive Connection Pin for ConverterCapacitor 3 Positive Connection Pin for ConverterCapacitor 4 Positive Connection Pin for ConverterPaper Tray Detection Signal (1st Feeder)Charge Leak Detection SignalCharge Control DC ON/OFF PWMChip Select Signal2nd Paper Tray Detection Signal3rd Paper Tray Detection Signal4th Paper Tray Detection Signal2nd Paper Feed Module Detection Signal4th Paper Feed Module Detection Signal

DP-1520P/1820P/1820E

Ver. 1.0

DAA1 ADF Motor Current Control SignalDB0 Data SignalDB1 Data SignalDB2 Data SignalDB3 Data SignalDB4 Data SignalDB5 Data SignalDB6 Data SignalDB7 Data SignalDDCPWME_RDBELPCNTF/RFDPCHK2FDPCHK3FDPCHK4FSHGNDGPWMHFSOLHPMBHSYNCHUMISNHVAC1HVAC2IICSCLIICSDAIOUTAIOUTBJAMDOR2JAMDOR3JAMDOR4KCDETKCNTKIN0KIN1KIN2KIN3KIN4KIN5KIN6KIN7L1L2L5VLD

Glossary of Electrical AbbreviationsSignal Name Function16SEP 2004

Development Control DC ON/OFF PWMRead/Write Execution Control SignalDischarge LampDirection of Rotation Signal2nd Paper Tray Paper Registration Detection Signal3rd Paper Tray Paper Registration Detection Signal4th Paper Tray Paper Registration Detection SignalTransfer Gate ClockGroundGrid Control ON/OFF PWMTemp Humidity Sensor SignalLCD Driver Power Control SignalHorizontal Synchronous SignalTemp Humidity Sensor SignalINV PC Board/Lamp SignalINV PC Board/Lamp SignalIIC Transmission ClockIIC Transmission SignalMotor Control SignalMotor Control Signal2nd Paper Tray Jam Access Cover Open Detection Signal3rd Paper Tray Jam Access Cover Open Detection Signal4th Paper Tray Jam Access Cover Open Detection SignalKey Counter Option DetectionKey Counter OptionPNL Key Signal (Key Line)PNL Key Signal (Key Line)PNL Key Signal (Key Line)PNL Key Signal (Key Line)PNL Key Signal (Key Line)PNL Key Signal (Key Line)PNL Key Signal (Key Line)PNL Key Signal (Key Line)Line SignalLine SignalLaser Circuit +5VDC Power SupplyMotor Lock Detection Signal

DP-1520P/1820P/1820E

Ver. 1.0

LDBTHP Toner Bottle HP Sensor SignalLDCST2 Photo Sensor DC Drive VoltageLDCST3 Photo Sensor DC Drive VoltageLDCSTSEN Photo Sensor DC Drive VoltageLDDUX Photo Sensor DC Drive VoltageLDEN Laser ControlLDFPCHK2 Photo Sensor DC Drive VoltageLDFPCHK3 Photo Sensor DC Drive VoltageLDFPCHK4 Photo Sensor DC Drive VoltageLDHEXLDHFPELDI-LDI+LDJAM2LDJAM3LDJAM4LDORILDPEDLDPHK2LDPHK3LDPHK4LDPSENLDRRSENLDSSNLDTFLDUPL2LDUPL3LDUPL4LDUPLSENLDWTBLED0LED1LED2LED3LED4LED5LED6LED7LED8LED9LEDCT0LEDCT1LEDCT2LEDCT3LEDCT4LIFT1


Photo Sensor DC Drive VoltagePhoto Sensor DC Drive VoltageLaser Diode Control -Laser Diode Control +Photo Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePhoto Sensor DC Drive VoltagePNL LED Control SignalPNL LED Control SignalPNL LED Control SignalPNL LED Control SignalPNL LED Control SignalPNL LED Control SignalPNL LED Control SignalPNL LED Control SignalPNL LED Control SignalPNL LED Control SignalPNL LED Control SignalPNL LED Control SignalPNL LED Control SignalPNL LED Control SignalPNL LED Control Signal1st Paper Tray Lift Motor Signal

DP-1520P/1820P/1820E

Ver. 1.0

LIFT2 2nd Paper Tray Lift Motor SignalLIFT4 4th Paper Tray Lift Motor SignalLIFTM2 2nd Paper Tray Lift Motor Drive SignalLIFTM4 4th Paper Tray Lift Motor Drive SignalMGND GroundMRCLH2 2nd Paper Tray Intermediate Roller Clutch Drive SignalMRCLH3 3rd Paper Tray Intermediate Roller Clutch Drive SignalMRCLH4 4th Paper Tray Intermediate Roller Clutch Drive SignalN.C. No ConnectionnA3SENnA5SENnAA3SnAA3SNnAADL1nAADL2nAAPNTnAB1SNnAB2SNnAB4SnAB4SNnACLH1nACLH2nACLH3nACLOCKADnAEJCnAKEEP1nAKEEP2nANGnAOACnAPACHGnAPICRnAREVnASTAMPnASTROAD1nATTnB4SENnBDOORnCCLH1nCCLH2nCCLH3nCST2nCTCNTnCTONnDADFONnDUPACKnDUPSEN


Sheet Bypass Paper Size Detection SignalSheet Bypass Paper Size Detection SignalOriginal Width Detection SignalOriginal Width Detection SignalOriginal Length Detection SignalOriginal Length Detection SignalOriginal Detection SignalRead Point Detection SignalDuplex Eject Detection SignalOriginal Width Detection SignalOriginal Width Detection SignalFeed 2 Roller Clutch Control SignalPaper Feed Roller Clutch Control SignalInverting Roller Clutch Control Signal

1 ADF Motor Control Clock SignalOriginal Eject Detection SignalReversing 1 Guide Solenoid Control SignalReversing 1 Guide Solenoid Control SignalPlaten Cover AngleADF Cover Open Detection SignalRelease Lever Plate Solenoid Control SignalRelease Lever Plate Solenoid Control SignalADF Exit Cover Open Detection SignalStamp Control SignalADF Motor Control Strobe SignalAttention SignalSheet Bypass B4 Paper Detection SignalPlaten Cover Open Detection SignalFeed 2 Roller Clutch Control SignalADF Roller Clutch Control SignalInverting Roller Clutch Control Signal2nd Paper Tray Detection SignalCounter Drive SignalRing Detection SignalADF Option Detection SignalDuplex Print Acknowledge SignalADU Sensor Signal

DP-1520P/1820P/1820E

Ver. 1.0

nDUREQ Duplex Print RequestnDUXSOL ADU Solenoid Control SignalnFLON Inverter GroundnFNRDT Fan Ready SignalnFNRDTP PS Fan Ready SignalnHEXSEN Paper Exit Sensor SignalnHFPESEN Bypass Feed Sensor SignalnHKOF External Phone Off-Hook Detection SignalnLEDACT ACTIVE Lamp LED Control SignalnLEDALMnLEDDATnLEDSLPnLIFTM3nLPOW1nLPOW2nMMCKnMMONnMMRDYnOPDUPnOPTnORInOUTAnOUTBnPACKnPCHK4nPEDSENnPHY1nPHY2nPHYCPnPHYRnPNLRSTnPRDYnPRGDWNnPVSYNCnSACKnSADFONnSCNWUPnSLPKYnSREQnSTAMPnTFSENnVCNTnVRDYnWAKEnWTBSENOP3CLK


ALARM Lamp LED Control SignalDATA Lamp LED Control SignalEnergy Saver Lamp LED Control Signal3rd Paper Tray Lift Motor Drive SignalPower ControlPower ControlMain Motor ClockMain Motor Rotation Control SignalMain Motor Ready SignalDuplex Unit Detection SignalPNL4 DetectionHome Position Detection SignalMotor Control SignalMotor Control SignalPrinter ACK Signal4th Paper Tray Paper Detection SignalSheet Bypass Paper Detection SignalCCD CLOCKCCD CLOCKCCD CLOCKCCD CLOCKPanel Reset SignalPrinter Ready SignalF-ROM RewritePrint RegistrationScan ACK SignalADF Detection SignalEnergy Saver SignalEnergy Saver Key SignalScanner Request SignalStamp Control SignalToner Waste Sensor+24 VDC Power Supply Control SignalVSYNC Reset SignalFAX Wake Up SignalToner Waste Container Detection Sensor Signal3rd Paper Tray Motor Clock

DP-1520P/1820P/1820E

Ver. 1.0

OP3ENB Option Feed FIFO EnableOP3FCK Option Feed FIFO ClockOP3FDIN Option Feed FIFO InputOP3FLD Option Feed FIFO LoadOP3FLT Option Feed FIFO LatchOP3FOT Option Feed FIFO OutputOP3RST Option Feed FIFO ResetOUTA Motor Control SignalOUTB Motor Control SignalP/SpADATA1ApADATA1BpBDAPCHK1PCHK2PCHK3PCHK4pCMLDPFCLCNTPMCKPMONPMRDYPNLRXDPNLTXDPOWCNTVpPHY1pPHY2pPHYCPpPHYRPSpSENTIMpSPCRSTpSPKOTpVREQRESETBRETRACERRCLCNTRSRSENRW_WRBS/HSCN0SCN1SCN10SCN11SCN2


Motor Start/StopADF Motor Control SignalADF Motor Control SignalPrint BDA Signal1st Paper Tray Paper Detection Signal2nd Paper Tray Paper Detection Signal3rd Paper Tray Paper Detection Signal4th Paper Tray Paper Detection SignalLine Switching Relay Drive SignalPaper Feed Clutch Drive SignalPolygon Motor ClockPolygon Motor Rotation SignalPolygon Motor Ready SignalPNL Reception Data SignalPNL Transmission Data SignalLaser Power Control SignalCCD CLOCKCCD CLOCKCCD CLOCKCCD CLOCKParallel / Serial Data Input Select SignalScanner LSYNC SignalSPC Reset SignalLine Dial Tone SignalPrint ACK Request SignalLCD Driver Reset SignalLaser ControlRegistration Roller Drive SignalRegister Selection Control SignalRegistration Sensor SignalLCD Control SignalSample Hold SignalPNL Key Signal (Scan Line)PNL Key Signal (Scan Line)PNL Key Signal (Scan Line)PNL Key Signal (Scan Line)PNL Key Signal (Scan Line)

DP-1520P/1820P/1820E

Ver. 1.0

SCN3 PNL Key Signal (Scan Line)SCN4 PNL Key Signal (Scan Line)SCN5 PNL Key Signal (Scan Line)SCN6 PNL Key Signal (Scan Line)SCN8 PNL Key Signal (Scan Line)SCN9 PNL Key Signal (Scan Line)SMCNT Toner Motor Control SignalSPCRXD SPC Reception Data SignalSPCTXD SPC Transmission Data SignalSSRTCTDREFTDSENTEMPSNTHERM1THERM2TPWMUPLIMITUPLIMIT2UPLIMIT3UPLIMIT4UPLMT2UPLMT4V0V1V2V3V4VCLVDDVOUTVOUT1VOUT2VSSZCRS


Heater Control SignalTransfer Control Cleaning OutputToner Density Reference SensorToner Density Sensor SignalTemp Humidity Sensor SignalThermistor Output SignalGroundTransfer Control Transfer Output1st Paper Tray Paper Level Signal2nd Paper Tray Paper Level Signal3rd Paper Tray Paper Level Signal4th Paper Tray Paper Level Signal2nd Paper Tray Paper Level Signal4th Paper Tray Paper Level SignalLCD Driver Supply VoltagesLCD Driver Supply VoltagesLCD Driver Supply VoltagesLCD Driver Supply VoltagesLCD Driver Supply VoltagesLCD Power Supply+3.3 VDC Power SupplyVoltage Converter Input / OutputGraphic Data OutputGraphic Data OutputGroundHeater Control Signal

DP-1520P/1820P/1820E

Ver. 1.0

3.2. SC PC BoardCN51

SC PCBPin No. Signal Name Destination Signal Waveform Function

CN51-1 +24V PS PCBCN11-1

+24 VDC Power Supply

CN51-2 GND PS PCBCN11-2

Ground

CN51-3 +5VP

CN51-4 +5VD

CN51-5 +5v

CN51-6 GND

CN51-7 GND

CN51-8 GND

CN51-9 GND

CN51-10 GND

CN51-11 +3.3V

+24V

0V22SEP 2004

PS PCBCN11-3

+5 VDC Power Supply

PS PCBCN11-4

+5 VDC Power Supply

PS PCBCN11-5

+5 VDC Power Supply

PS PCBCN11-6

Ground

PS PCBCN11-7

Ground

PS PCBCN11-8

Ground

PS PCBCN11-9

Ground

PS PCBCN11-10

Ground

PS PCBCN11-11

+3.3 VDC Power Supply

+5V

+5V

+5V

0V

0V

0V

0V

0V

+3.3V

DP-1520P/1820P/1820E

Ver. 1.0

CN52

CN51-12 +3.3V PS PCBCN11-12


CN51-13 nLPOW1 PS PCBCN11-13

Power Control

CN51-14 nLPOW2 PS PCBCN11-14

Power Control

CN51-15 nVCNT

SC PCBPin No. Signal Nam

CN52-1 +24V

CN52-2 GND

CN52-3 GND

CN52-4 GND

CN52-5 +5VP

CN52-6 +5v

CN52-7 PNLRXD


+3.3V

+24V

0V

+3.3V 23SEP 2004

PS PCBCN11-15

+24 VDC Power Supply Control Signal

e Destination Signal Waveform Function

PNL1 PCBCN220-1


PNL1 PCBCN220-2

Ground

PNL1 PCBCN220-3

Ground

PNL1 PCBCN220-4

Ground

PNL1 PCBCN220-5

+5 VDC Power Supply

PNL1 PCBCN220-6

+5 VDC Power Supply

PNL1 PCBCN220-7

PNL Reception Data Signal

0V

+24V

0V

+24V

0V

0V

0V

+5V

+5V

+5V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN53

CN52-8 PNLTXD PNL1 PCBCN220-8

PNL Transmission Data Signal

CN52-9 nPNLRST PNL1 PCBCN220-9

Panel Reset Signal

CN52-10 nLPOW2 PNL1 PCB Power Control

CN52-11 nLPOW1

CN52-12 nSLPKY

CN52-13 nWAKE

CN52-16 nVCNT


CN53-1 nPRDY

CN53-2 nVRDY

CN53-3 nPACK


+5V

0V

+3.3V

0V RESET

+3.3V 24SEP 2004

CN220-10

PNL1 PCBCN220-11

Power Control

PNL1 PCBCN220-12

Energy Saver Key Signal

PNL1 PCBCN220-13

FAX Wake Up Signal

PNL1 PCBCN220-16

+24 VDC Power Supply Control Signal


ADF PCBCN717-1

Printer Ready Signal

ADF PCBCN717-2

VSYNC Reset Signal

ADF PCBCN717-3

Printer ACK Signal

0V

+24V

0V

+3.3V

0V PRESSED

+3.3V

0V

+24V

0V

+5V READY 0V

+5V

0V

+5V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN53-4 nATT ADF PCBCN717-4

Attention Signal

CN53-5 nDUPACK ADF PCBCN717-5

Duplex Print Acknowledge Signal

CN53-6 pBDA ADF PCB Print BDA Signal

CN53-7 pVREQ

CN53-8 nSACK

CN53-9 nPVSYNC

CN53-10 nDUREQ

CN53-11 pSENTIM

CN53-12 nSREQ

CN53-13 pSPCRST

CN53-14 nPRGDWN


+5V

0V

+5V

0V

+3.3V25SEP 2004

CN717-6

ADF PCBCN717-7

Print ACK Request Signal

ADF PCBCN717-8

Scan ACK Signal

ADF PCBCN717-9

Print Registration

ADF PCBCN717-10

Duplex Print Request

ADF PCBCN717-11

Scanner LSYNC Signal

ADF PCBCN717-12

Scanner Request Signal

ADF PCBCN717-13

SPC Reset Signal

ADF PCBCN717-14

F-ROM Rewrite

0V

+5V

0V

+5V

0V

+5V

0V

+5V

0V

+5V

0V

+5V

0V

+5V

0V

+5V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN55

CN53-15 GND ADF PCBCN717-15

Ground

CN53-16 GND ADF PCBCN717-16

Ground

CN53-17 IICSCL ADF PCBCN717-17

IIC Transmission Clock

CN53-18 IICSDA

CN53-19 GND

CN53-20 nSCNWUP

CN53-21 SPCRXD

CN53-22 SPCTXD


CN55-1 VOUT2

CN55-2 AGND


0V

0V

+5V 26SEP 2004

ADF PCBCN717-18

IIC Transmission Signal

ADF PCBCN717-19

Ground

ADF PCBCN717-20

Energy Saver Signal

ADF PCBCN717-21

SPC Reception Data Signal

ADF PCBCN717-22

SPC Transmission Data Signal


CCDCN850-1

Graphic Data Output

CCDCN850-2

Ground

0V

+5V

0V

0V

+5V

0V

+5V

0V

+5V

0V

0V1V

4 6V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN55-3 VOUT1 CCDCN850-3

Graphic Data Output

CN55-4 AGND CCDCN850-4

Ground

CN55-5 AGND CCD Ground

CN55-6 AGND

CN55-7 +12V

CN55-8 AGND

CN55-9 GND

CN55-10 GND

CN55-11 pPHYCP

CN55-12 nPHYCP

CN55-13 pPHYR

CN55-14 nPHYR


0V1V

4 6V

0V27SEP 2004

CN850-5

CCDCN850-6

Ground

CCDCN850-7


CCDCN850-8

Ground

CCDCN850-9

Ground

CCDCN850-10

Ground

CCDCN850-11

CCD CLOCK

CCDCN850-12

CCD CLOCK

CCDCN850-13

CCD CLOCK

CCDCN850-14

CCD CLOCK

0V

0V

+12V

0V

0V

0V

+3.3V

0V

+3.3V

0V

+3.3V

0V

+3.3V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN57

CN55-15 pPHY2 CCDCN850-15

CCD CLOCK

CN55-16 nPHY2 CCDCN850-16

CCD CLOCK

CN55-17 pPHY1 CCD CCD CLOCK

CN55-18 nPHY1

CN55-19 FSH

CN55-20 +5v


CN57-1 LDI-

CN57-2 LDI+

CN57-3 GND

CN57-4 +3.3V


+3.3V

0V

+3.3V

0V

+3.3V28SEP 2004

CN850-17

CCDCN850-18

CCD CLOCK

CCDCN850-19

Transfer Gate Clock

CCDCN850-20

+5 VDC Power Supply


LSUCN1-1

Laser Diode Control -

LSUCN1-2

Laser Diode Control +

LSUCN1-3

Ground

LSUCN1-4


0V

+3.3V

0V

+3.3V

0V

+5V

+3.3V

0V

+3.3V

0V

0V

+3.3V

DP-1520P/1820P/1820E

Ver. 1.0

3.3. SPC PC BoardCN650

SPC PCBPin No. Signal Name Destination Signal Waveform Function

CN650-1 +5VP ADF PCBCN21-1

+5 VDC Power Supply

CN650-2 MGND ADF PCBCN21-2

Ground

CN650-3 GND

CN650-4 +24V

CN650-5 nAAPNT

CN650-6 N.C.

CN650-7 nAB4SN

CN650-8 nAA3SN

CN650-9 nAADL1

CN650-10 nAADL2

CN650-11 nAB2SN

+5V

0V29SEP 2004

ADF PCBCN21-3

Ground

ADF PCBCN21-4


ADF PCBCN21-5

Original Detection Signal

ADF PCBCN21-6

No Connection

ADF PCBCN21-7

Original Width Detection Signal

ADF PCBCN21-8


ADF PCBCN21-9

Original Length Detection Signal

ADF PCBCN21-10


ADF PCBCN21-11

Duplex Eject Detection Signal

0V

+24V

+5V

DETECT 0V

+5V

0V

+5V

0V

+5V

0V

+5V

0V

+5V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN650-12 nAB1SN ADF PCBCN21-12

Read Point Detection Signal

CN650-13 nAEJC ADF PCBCN21-13

Original Eject Detection Signal

CN650-14 nAREV ADF PCB ADF Exit Cover Open

CN650-15 nAOAC

CN650-16 nAKEEP1

CN650-17 nAKEEP2

CN650-18 nAPACHG

CN650-19 nAPICR

CN650-20 nSTAMP

CN650-21 nACLH1

CN650-22 nACLH2


+5V

0V

+5V

0V

+5V30SEP 2004

CN21-14 Detection Signal

ADF PCBCN21-15

ADF Cover Open Detection Signal

ADF PCBCN21-16

Reversing 1 Guide Solenoid Control Signal

ADF PCBCN21-17


ADF PCBCN21-18

Release Lever Plate Solenoid Control Signal

ADF PCBCN21-19


ADF PCBCN21-20

Stamp Control Signal

ADF PCBCN21-21

Feed 2 Roller Clutch Control Signal

ADF PCBCN21-22

Paper Feed Roller Clutch Control Signal

OPEN 0V

+5V

OPEN 0V

+5V

0V

+5V

0V

+5V

0V

+5V

0V

+5V

0V

+5V

0V

+5V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN650-23 nACLH3 ADF PCBCN21-23

Inverting Roller Clutch Control Signal

CN650-24 nACLOCKAD1

ADF PCBCN21-24

ADF Motor Control Clock Signal

CN650-25 nASTROAD1 ADF PCB ADF Motor Control Strobe

CN650-26 pADATA1A

CN650-27 pADATA1B

CN650-28 +24V

CN650-29 GND

CN650-30 +24V

CN650-31 GND

CN650-32 DAA1

CN650-33 MGND

CN650-34 MGND


+5V

0V

+5V

0V

+5V31SEP 2004

CN21-25 Signal

ADF PCBCN21-26

ADF Motor Control Signal

ADF PCBCN21-27

ADF Motor Control Signal

ADF PCBCN21-28


ADF PCBCN21-29

Ground

ADF PCBCN21-30


ADF PCBCN21-31

Ground

ADF PCBCN21-32

ADF Motor Current Control Signal

ADF PCBCN21-33

Ground

ADF PCBCN21-34

Ground

0V

+5V

0V

+5V

0V

+24V

0V

+24V

0V

+5V

0V

0V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN655

CN650-35 nSADFON ADF PCBCN21-35

ADF Detection Signal

CN650-36 nDADFON ADF PCBCN21-36

ADF Option Detection Signal

CN650-37 +24V ADF PCBCN21-37


CN650-38 MGND

CN650-39 +5v

CN650-40 +5v

SPC PCBPin No. Signal Nam

CN655-1 OUTA

CN655-2 nOUTA

CN655-3 +24V

CN655-4 OUTB

CN655-5 +24V


+5V (For i-ADF)+0V (For ADF)

+5V

0V

+24V32SEP 2004

ADF PCBCN21-38

Ground

ADF PCBCN21-39

+5 VDC Power Supply

ADF PCBCN21-40

+5 VDC Power Supply


Scanning Motor-1

Motor Control Signal

Scanning Motor-2


Scanning Motor-3


Scanning Motor-4


Scanning Motor-5


0V

+5V

+5V

+18V

0V

+18V

0V

+24V

+18V

0V

+24V

DP-1520P/1820P/1820E

Ver. 1.0

CN656

CN657

CN655-6 nOUTB Scanning Motor-6



CN656-1 +24V INV PCBCN1-1


CN656-2 +24V

CN656-3 nFLON

CN656-4 MGND

CN656-5 MGND


CN657-1 +5VP

CN657-2 nANG

CN657-3 GND

CN657-4 nBDOOR


+18V

0V

+24V33SEP 2004

INV PCBCN1-2


INV PCBCN1-3

Inverter Ground

INV PCBCN1-4

Ground

INV PCBCN1-5

Ground


SNS PCB-1 +5 VDC Power Supply

SNS PCB-2 Platen Cover Angle

SNS PCB-3 Ground

SNS PCB-4 Platen Cover Open Detection Signal

+24V

+24V

0V

0V

0V

+5V

+5V

ON 0V

0V

+5V

ON 0V

DP-1520P/1820P/1820E

Ver. 1.0

CN701

CN657-5 nORI Home Position Sensor-1

Home Position Detection Signal

CN657-6 GND Home Position Sensor-2

Ground

CN657-7 LDORI Home Position Sensor-3

Photo Sensor DC Drive Voltage


CN701-1 L5V

CN701-2 GND

CN701-3 S/H

CN701-4 HSYNC

CN701-5 LDEN

CN701-6 RETRACE

CN701-7 GND

CN701-8 POWCNTV


+5V

HOME 0V

0V34SEP 2004


LSUCN2-1

Laser Circuit +5VDC Power Supply

LSUCN2-2

Ground

LSUCN2-3

Sample Hold Signal

LSUCN2-4

Horizontal Synchronous Signal

LSUCN2-5

Laser Control

LSUCN2-6

Laser Control

LSUCN2-7

Ground

LSUCN2-8

Laser Power Control Signal

+1.2V

+5V

0V

+5V(H)

0V(L)

+5V

0V

+5V(H)

0V(L)

+5V

0V

0V

+1.1V

DP-1520P/1820P/1820E

Ver. 1.0

CN702

CN701-9 PMCK LSUCN3-1

Polygon Motor Clock

CN701-10 PMRDY LSUCN3-2

Polygon Motor Ready Signal

CN701-11 PMON LSU Polygon Motor Rotation

CN701-12 MGND

CN701-13 +24VM


CN702-1 +24VM

CN702-2 CPWM

CN702-3 GPWM

CN702-4 N.C.

CN702-5 DDCPWM

CN702-6 TPWM


+5V(H)

0V(L)

+5V

Ready 0V

+5V35SEP 2004

CN3-3 Signal

LSUCN3-4

Ground

LSUCN3-5



PS PCBCN500-1


PS PCBCN500-2

Charge Control DC ON/OFF PWM

PS PCBCN500-3

Grid Control ON/OFF PWM

PS PCBCN500-4

No Connection

PS PCBCN500-5

Development Control DC ON/OFF PWM

PS PCBCN500-6

Transfer Control Transfer Output

ON 0V

0V

+24V

+24V

+5V

0V

+5V

0V

+5V

0V

+5V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN702-7 TC PS PCBCN500-7

Transfer Control Cleaning Output

CN702-8 CCRMT PS PCBCN500-8

Charge Leak Detection Signal

CN702-9 MGND PS PCB Ground

CN702-10 +24V

CN702-11 nFNRDTP

CN702-12 MGND

CN702-13 +5VP

CN702-14 +5v

CN702-15 +5v

CN702-16 GND

CN702-17 GND

CN702-18 GND


+5V

0V

+5V

0V 36SEP 2004

CN500-9

PS/LSU Fan-1 +24 VDC Power Supply

PS/LSU Fan-2 PS Fan Ready Signal

PS/LSU Fan-3 Ground

PS PCBCN12-1

+5 VDC Power Supply

PS PCBCN12-2

+5 VDC Power Supply

PS PCBCN12-3

+5 VDC Power Supply

PS PCBCN12-4

Ground

PS PCBCN12-5

Ground

PS PCBCN12-6

Ground

0V

+24V

+5V

0V

0V

+5V

+5V

+5V

0V

0V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN703

CN706

CN702-19 ZCRS PS PCBCN12-7

Heater Control Signal

CN702-20 SSR PS PCBCN12-8

Heater Control Signal

CN702-21 ACSW PS PCB Fuser Relay

CN702-22 +24VD1


CN703-1 MGND

CN703-2 MGND

CN703-3 +24V

CN703-4 +24V

SPC PCBPin No.

Signal Nam

CN706-1 +24VM

CN706-2 LIFT1


+5V

0V

+5V(H)

0V(L)

+24V 37SEP 2004

CN12-9

PS PCBCN12-10



PS PCBCN10-1

Ground

PS PCBCN10-2

Ground

PS PCBCN10-3


PS PCBCN10-4



1st Tray Lift Motor


1st Tray Lift Motor

1st Paper Tray Lift Motor Signal

0V ON

+24V

0V

0V

+24V

+24V

+24V

+24V

ON 0V

DP-1520P/1820P/1820E

Ver. 1.0

CN707


CN707-1 +24VM CST2 PCBCN770-3


CN707-2 MGND CST2 PCBCN770-4

Ground

CN707-3 +5v CST2 PCB +5 VDC Power Supply

CN707-4 GND

CN707-5 OP3FLT

CN707-6 OP3RST

CN707-7 OP3FOT

CN707-8 OP3FCK

CN707-9 OP3FLD

CN707-10 OP3ENB

CN707-11 OP3CLK

+24V

0V38SEP 2004

CN770-5

CST2 PCBCN770-6

Ground

CST2 PCBCN770-7

Option Feed FIFO Latch

CST2 PCBCN770-8

Option Feed FIFO Reset

CST2 PCBCN770-9

Option Feed FIFO Output

CST2 PCBCN770-10

Option Feed FIFO Clock

CST2 PCBCN770-11

Option Feed FIFO Load

CST2 PCBCN770-12

Option Feed FIFO Enable

CST2 PCBCN770-13

3rd Paper Tray Motor Clock

+5V

0V

+5V

0V

+5V

Reset 0V

+5V

0V

+5V

0V

+5V

0V

+5V (H)

0V (L)

+5V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN707-12 OP3FDIN CST2 PCBCN770-14

Option Feed FIFO Input

CN707-13 ADF2 CST2 PCBCN771-1

2nd Paper Tray Feed Roller Drive Signal

CN707-14 MRCLH2 CST2 PCB 2nd Paper Tray

CN707-15 LIFT2

CN707-16 PCHK2

CN707-17 CST2

CN707-18 UPLIMIT2

CN707-19 FDPCHK2

CN707-20 JAMDOR2

CN707-21 CSTOP

CN707-23 +24VM


+5V

0V

+5V

0V

ON

+5V ON39SEP 2004

CN771-2 Intermediate Roller Clutch Drive Signal

CST2 PCBCN771-3

2nd Paper Tray Lift Motor Signal

CST2 PCBCN771-4

2nd Paper Tray Paper Detection Signal

CST2 PCBCN771-5

2nd Paper Tray Detection Signal

CST2 PCBCN771-6

2nd Paper Tray Paper Level Signal

CST2 PCBCN771-7

2nd Paper Tray Paper Registration Detection Signal

CST2 PCBCN771-8

2nd Paper Tray Jam Access Cover Open Detection Signal

CST2 PCBCN771-9

2nd Paper Feed Module Detection Signal

CST2 PCBCN771-11


0V

+5V

0V

ON

+5V

0V

+5V

0V

+5V

0V

+5V(H)

0V(L)

+5V

0V

0V

+24V

DP-1520P/1820P/1820E

Ver. 1.0

CN709


Ground

CN707-25 +24VM CST2 PCBCN770-15



Ground


CN709-1 PCHK1

CN709-2 GND

CN709-3 LDPSEN

CN709-4 UPLIMIT

CN709-5 GND

CN709-6 LDUPLSEN

CN709-7 CASET

CN709-8 GND


0V

+24V40SEP 2004


No Paper Sensor-1

1st Paper Tray Paper Detection Signal

No Paper Sensor-2

Ground

No Paper Sensor-3


Upper Limit Sensor-1

1st Paper Tray Paper Level Signal


Ground



1st Tray Detection Sensor-1

Paper Tray Detection Signal (1st Feeder)

1st Tray Detection Sensor-2

Ground

0V

+5V

0V

0V

+1.2V

+5V

0V

0V

+1.2V

+5V

0V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN712

CN709-9 LDCSTSEN 1st Tray Detection Sensor-3


CN709-10 RSEN Registration Roller Sensor-1

Registration Sensor Signal

CN709-11 GND Registration Roller Sensor-2

Ground

CN709-12 LDRRSEN


CN712-1 LDSSN

CN712-2 nA3SEN

CN712-3 GND

CN712-4 nB4SEN

CN712-5 nA5SEN

CN712-6 nPEDSEN


+1.2V

+5V

0V41SEP 2004

Registration Roller Sensor-3



SSN PCBCN42-1


SSN PCBCN42-2

Sheet Bypass Paper Size Detection Signal

SSN PCBCN42-3

Ground

SSN PCBCN42-4

Sheet Bypass B4 Paper Detection Signal

SSN PCBCN42-5

Sheet Bypass Paper Size Detection Signal

Bypass Feed No Paper Sensor-1

Sheet Bypass Paper Detection Signal

0V

+1.2V

+1.2V

+5V

0V

0V

+5V

0V

+5V

0V

+5V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN715

CN712-7 GND Bypass Feed No Paper Sensor-2

Ground

CN712-8 LDPED Bypass Feed No Paper Sensor-3


CN712-9 nDUPSEN Duplex Sensor-1 ADU Sensor Signal

CN712-10 GND

CN712-11 LDDUX

CN712-14 nHFPESEN

CN712-15 GND

CN712-16 LDHFPE


CN715-1 +24VM

CN715-2 RRCLCNT

CN715-3 +24VM


0V

+1.2V

+5V 42SEP 2004

Duplex Sensor-2 Ground

Duplex Sensor-3 Photo Sensor DC Drive Voltage

Bypass Feed Sensor-1

Bypass Feed Sensor Signal


Ground




Registration Roller Clutch-1


Registration Roller Clutch-2

Registration Roller Drive Signal

Paper Feed Clutch-1


0V

0V

+1.2V

+5V

0V

0V

+1.2V

+24V

+24V

ON 0V

+24V

DP-1520P/1820P/1820E

Ver. 1.0

CN717Refer to SC PC Boar

CN719

CN720

CN715-4 PFCLCNT Paper Feed Clutch-2

Paper Feed Clutch Drive Signal

CN715-5 +24VM Bypass Feed Solenoid-1


CN715-6 HFSOL Bypass Feed Solenoid-2

Temp Humidity Sensor Signal


CN719-1 +24VM

CN719-2 nDUXSOL


CN720-3 +24VM

CN720-4 ELPCNT

CN720-5 +24VM

CN720-6 TDREF


+24V

ON 0V

+24V

+24V43SEP 2004

d CN53.


Duplex Solenoid +24 VDC Power Supply

Duplex Solenoid ADU Solenoid Control Signal


PCL PCB-1 +24 VDC Power Supply

PCL PCB-2 Discharge Lamp

Toner Density Sensor-2


Toner Density Sensor-1

Toner Density Reference Sensor

ON 0V

+24V

+24V

ON 0V

+24V

+24V

0V ON

+24V

9V

4V

DP-1520P/1820P/1820E

Ver. 1.0

CN720-7 TDSEN Toner Density Sensor-3

Toner Density Sensor Signal

CN720-8 GND Toner Density Sensor-4

Ground

CN720-12 GND Waste Toner Sensor-1

Ground

CN720-13 nWTBSEN

CN720-14 nTFSEN

CN720-15 LDWTB

CN720-16 LDTF

CN720-17 +5v

CN720-18 HUMISN

CN720-19 GND

CN720-20 TEMPSN

CN720-21 +24VM


5V

0V

0V44SEP 2004

Waste Toner Sensor-2

Toner Waste Container Detection Sensor Signal


Toner Waste Sensor





Humidity Sensor-1

+5 VDC Power Supply

Humidity Sensor-2


Humidity Sensor-3

Ground

Humidity Sensor-4


Total Counter-1 +24 VDC Power Supply

0V

+5V

0V

+5V

0V

+1.2V

+1.5V

0V

+5V

5V

0V

0V

5V

0V

+24V

DP-1520P/1820P/1820E

Ver. 1.0

CN721

CN722

CN720-22 nCTCNT Total Counter-2 Counter Drive Signal


CN721-1 THERM1 Thermistor-1 Thermistor Output Signal

CN721-2 THERM2

CN721-3 nHEXSEN

CN721-4 GND

CN721-5 LDHEX

CN721-10 +24VFL

CN721-11 nFNRDT

CN721-12 MGND


CN722-1 +24VM


+24V

0V

5V45SEP 2004

Thermistor-2 Ground

Paper Exit Sensor-1

Paper Exit Sensor Signal

Paper Exit Sensor-2

Ground

Paper Exit Sensor-3


Exit Fan-1 +20 / +24 VDC Power Supply

Exit Fan-2 Fan Ready Signal

Exit Fan-3 Ground


Toner Bottle Motor-1


0V

0V

+5V

0V

0V

+1.2V

+24V

+5V

0V

0V

+24V

DP-1520P/1820P/1820E

Ver. 1.0

CN723

CN722-2 BMCNT Toner Bottle Motor-2

Toner Bottle Motor Control Signal

CN722-3 +24VM Toner Motor-1 +24 VDC Power Supply

CN722-4 SMCNT Toner Motor-2 Toner Motor Control Signal

CN722-5 BTHP

CN722-6 GND

CN722-7 LDBTHP


CN723-1 +24VM

CN723-2 +24VM

CN723-3 MGND

CN723-4 MGND

CN723-5 GND


+24V

0V ON

+24V

+24V 46SEP 2004

Toner Bottle Home Position Sensor-1

Toner Bottle Position Sensor Signal


Ground


Toner Bottle HP Sensor Signal


Main Motor-1 +24 VDC Power Supply

Main Motor-2 +24 VDC Power Supply

Main Motor-3 Ground

Main Motor-4 Ground

Main Motor-5 Ground

0V ON

+5V

0V

0V

+5V

0V

+24V

+24V

0V

0V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN726

CN723-6 +5v Main Motor-6 +5 VDC Power Supply

CN723-7 nMMON Main Motor-7 Main Motor Rotation Control Signal

CN723-8 nMMCK Main Motor-8 Main Motor Clock

CN723-9 F/R

CN723-10 nMMRDY


CN726-1 +24VM

CN726-2 KCNT

CN726-3 GND

CN726-4 KCDET

CN726-5 N.C.

CN726-6 N.C.


+5V

+6.5V

0V

+6.5V47SEP 2004

Main Motor-9 Direction of Rotation Signal

Main Motor-10 Main Motor Ready Signal


Key Counter +24 VDC Power Supply

Key Counter Key Counter Option

Key Counter Ground

Key Counter Key Counter Option Detection

No Connection

No Connection

0V

0V

+5V

0V

+24V

+24V

0V

0V

+5V

DETECT 0V

DP-1520P/1820P/1820E

Ver. 1.0

3.4. PNL1 PC BoardCN220

Refer to SC PC Board CN52.

CN223

PNL1 PCBPin No. Signal Name Destination Signal Waveform Function

CN223-1 CSB1 LCD Chip Select Signal

CN223-2 RESETB LCD LCD Driver Reset Signal

CN223-3 RS

CN223-4 RW_WRB

CN223-5 E_RDB

CN223-6 DB0

CN223-7 DB1

CN223-8 DB2

CN223-9 DB3

CN223-10 DB4

+3.3V

0V48SEP 2004

LCD Register Selection Control Signal

LCD LCD Control Signal

LCD Read/Write Execution Control Signal

LCD Data Signal

LCD Data Signal

LCD Data Signal

LCD Data Signal

LCD Data Signal

+3.3V

0V RESET

+3.3V

0V

+3.3V

0V

+3.3V

0V

+3.3V

0V

+3.3V

0V

+3.3V

0V

+3.3V

0V

+3.3V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN223-11 DB5 LCD Data Signal



CN223-14 VDD

CN223-15 VCL

CN223-16 VSS

CN223-17 VOUT

CN223-18 C4+

CN223-19 C3+

CN223-20 C1-

CN223-21 C1+

CN223-22 C2+


+3.3V

0V

+3.3V

0V

+3.3V 49SEP 2004

LCD +3.3 VDC Power Supply

LCD LCD Power Supply

LCD Ground

LCD Voltage Converter Input / Output

LCD Capacitor 4 Positive Connection Pin for Converter


LCD Capacitor 1 Negative Connection Pin for Converter



0V

+3.3V

+3.3V

0V

+12.5V

+12.5V

+12.5V

+9.5V

+3.3V

0V

+6.3V

+3.3V

+9.5V

+6.3V

DP-1520P/1820P/1820E

Ver. 1.0

CN230

CN223-23 C2- LCD Capacitor 2 Negative Connection Pin for Converter

CN223-24 V1 LCD LCD Driver Supply Voltages

CN223-25 V2 LCD LCD Driver Supply Voltages

CN223-26 V3

CN223-27 V4

CN223-28 V0

CN223-29 PS

CN223-30 HPMB

PNL1 PCBPin No. Signal Nam

CN230-1 LED0

CN230-2 KIN7

CN230-3 LED1


+3.3V

0V

+6.7V

+5.3V50SEP 2004

LCD LCD Driver Supply Voltages



LCD Parallel / Serial Data Input Select Signal

LCD LCD Driver Power Control Signal


PNL2 PCBCN250-1

PNL LED Control Signal

PNL2 PCBCN250-2

PNL Key Signal (Key Line)

PNL2 PCBCN250-3


+2.6V

+1.4V

+8V

+3.3V

+3.3V

0V

+3.3V

0V Key

Pressed

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN230-4 KIN6 PNL2 PCBCN250-4


CN230-5 LED2 PNL2 PCBCN250-5


CN230-6 SCN0 PNL2 PCBCN250-6

PNL Key Signal (Scan Line)

CN230-7 LED3

CN230-8 SCN1

CN230-9 LED4

CN230-10 KIN5

CN230-11 LED5

CN230-12 KIN4

CN230-13 LEDCT2

CN230-14 KIN3

CN230-15 LEDCT3


+3.3V

0V Key

Pressed

0V

+3.3V Key51SEP 2004

PNL2 PCBCN250-7


PNL2 PCBCN250-8


PNL2 PCBCN250-9


PNL2 PCBCN250-10


PNL2 PCBCN250-11


PNL2 PCBCN250-12


PNL2 PCBCN250-13


PNL2 PCBCN250-14


PNL2 PCBCN250-15


0V Scan

0V

+3.3V

0V KeyScan

0V

+3.3V

0V Key

Pressed

0V

+3.3V

0V Key

Pressed

+5V LED ON

+3.3V

0V Key

Pressed

+5V LED ON

DP-1520P/1820P/1820E

Ver. 1.0

CN231



CN230-17 LEDCT4 PNL2 PCBCN250-17


CN230-18 BAT+ PNL2 PCBCN250-18

Lithium Battery


CN231-1 +SLP

CN231-2 nLEDSLP

CN231-3 nSLPKY

CN231-4 GND

CN231-5 LEDCT0

CN231-6 BZ+

CN231-7 LEDCT1

CN231-8 BZ-


+3.3V

0V Key

Pressed

+5V LED ON

+3V52SEP 2004


PNL2 PCBCN251-1

Energy Saver Lamp LED Power Supply

PNL2 PCBCN251-2

Energy Saver Lamp LED Control Signal

PNL2 PCBCN251-3

Energy Saver Key Signal

PNL2 PCBCN251-4

Ground

PNL2 PCBCN251-5


PNL2 PCBCN251-6

Buzzer Signal (+)+24V: Loud

PNL2 PCBCN251-7


PNL2 PCBCN251-8

Buzzer Signal+24V: Loud

+5VP

+5VP

0V

+3.3V

0V PUSH

0V

+5V LED ON

+12V(+24V)

+5V LED ON

+12V(+24V)

DP-1520P/1820P/1820E

Ver. 1.0

CN232

CN231-9 LED6 PNL2 PCBCN251-9


CN231-10 SCN2 PNL2 PCBCN251-10




CN231-12 KIN1


CN232-1 SCN4

CN232-2 SCN5

CN232-3 SCN3

CN232-4 SCN6

CN232-5 KIN3

CN232-6 N.C.

CN232-7 KIN2


0V

+3.3V

0V KeyScan

+3.3V Key53SEP 2004

PNL2 PCBCN251-12



PNL3 PCBCN252-1


PNL3 PCBCN252-2


PNL3 PCBCN252-3


PNL3 PCBCN252-4


PNL3 PCBCN252-5


PNL3 PCBCN252-6

No Connection

PNL3 PCBCN252-7


0V Pressed

+3.3V

0V Key

Pressed

+3.3V

0V KeyScan

+3.3V

0V KeyScan

+3.3V

0V KeyScan

+3.3V

0V KeyScan

+3.3V

0V Key

Pressed

+3.3V

0V Key

Pressed

DP-1520P/1820P/1820E

Ver. 1.0

CN233








CN233-1 +DAT

CN233-2 N.C.

CN233-3 +ALM

CN233-4 KIN4

CN233-5 +ACT

CN233-6 KIN5

CN233-7 nLEDACT

CN233-8 KIN6


+3.3V

0V Key

Pressed

+3.3V

0V Key

Pressed

+3.3V Key54SEP 2004


PNL3 PCBCN253-1

DATA Lamp LED Power Supply

PNL3 PCBCN253-2

No Connection

PNL3 PCBCN253-3

ALARM Lamp LED Power Supply

PNL3 PCBCN253-4


PNL3 PCBCN253-5

ACTIVE Lamp LED Power Supply

PNL3 PCBCN253-6


PNL3 PCBCN253-7

ACTIVE Lamp LED Control Signal

PNL3 PCBCN253-8


0V Pressed

+24V

0V

+24V

0V

+3.3V

0V Key

Pressed

+24V

0V

+3.3V

0V Key

Pressed

+3.3V

0V

+3.3V

0V Key

Pressed

DP-1520P/1820P/1820E

Ver. 1.0

CN234

CN233-9 nLEDALM PNL3 PCBCN253-9

ALARM Lamp LED Control Signal

CN233-10 LEDCT0 PNL3 PCBCN253-10


CN233-11 nLEDDAT PNL3 PCBCN253-11

DATA Lamp LED Control Signal

CN233-12 LED9

CN233-13 LEDCT4

CN233-14 LED8

CN233-15 LEDCT3

CN233-16 LED7

CN233-17 LEDCT2

CN233-18 LEDCT1


CN234-1 KIN4


+3.3V

0V

+5V LED ON

+3.3V 55SEP 2004

PNL3 PCBCN253-12


PNL3 PCBCN253-13


PNL3 PCBCN253-14


PNL3 PCBCN253-15


PNL3 PCBCN253-16


PNL3 PCBCN253-17


PNL3 PCBCN253-18



PNL4 PCBCN280-1


0V

0V

+5V LED ON

0V

+5V LED ON

0V

+5V LED ON

+5V LED ON

+3.3V

0V Key

Pressed

DP-1520P/1820P/1820E

Ver. 1.0







CN234-5 KIN2

CN234-6 KIN7

CN234-7 KIN1

CN234-8 SCN11

CN234-9 KIN0

CN234-10 SCN10

CN234-11 SCN8

CN234-12 SCN9

CN234-13 nOPT


+3.3V

0V Key

Pressed

+3.3V

0V Key

Pressed

+3.3V Key56SEP 2004

PNL4 PCBCN280-5


PNL4 PCBCN280-6


PNL4 PCBCN280-7


PNL4 PCBCN280-8


PNL4 PCBCN280-9


PNL4 PCBCN280-10


PNL4 PCBCN280-11


PNL4 PCBCN280-12


PNL4 PCBCN280-13

PNL4 Detection0V: Detection

0V Pressed

+3.3V

0V Key

Pressed

+3.3V

0V Key

Pressed

+3.3V

0V Key

Pressed

+3.3V

0V KeyScan

+3.3V

0V Key

Pressed

+3.3V

0V KeyScan

+3.3V

0V KeyScan

+3.3V

0V KeyScan

+3.3V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN234-14 GND PNL4 PCBCN280-14

Ground


0V57SEP 2004

DP-1520P/1820P/1820E

Ver. 1.0

3.5. PS PC BoardCN10

Refer to SPC PC Board CN703.

CN11Refer to SC PC Board CN51.

CN12Refer to SPC PC Board CN702.

CN500Refer to SPC PC Board CN702.58SEP 2004

DP-1520P/1820P/1820E

Ver. 1.0

3.6. ADF PC BoardCN21


CN22

ADF PCBPin No. Signal Name Destination Signal Waveform Function

CN22-1 OUTA ADF Motor-1 Motor Control Signal

CN22-2 +24V ADF Motor-2 +24 VDC Power Supply

CN22-3 IOUTA

CN22-4 OUTB

CN22-5 +24V

CN22-6 IOUTB

CN22-7 +24VOPF

CN22-8 nCCLH2

CN22-9 +24VOPF

CN22-10 nCCLH1

+24V

0V59SEP 2004

ADF Motor-3 Motor Control Signal


ADF Motor-5 +24 VDC Power Supply


ADF Roller Clutch-1


ADF Roller Clutch-4

ADF Roller Clutch Control Signal

Feed 2 Roller Clutch-1


Feed 2 Roller Clutch-4

Feed 2 Roller Clutch Control Signal

+24V

+24V

0V

+24V

0V

+24V

+24V

0V

+24V

+24V

0VON

+24V

+24V

0VON

DP-1520P/1820P/1820E

Ver. 1.0

CN24

CN25

CN26


CN24-1 +24VOPF Inverting Roller Clutch-1


CN24-2 nCCLH3 Inverting Roller Clutch-4

Inverting Roller Clutch Control Signal

ADF PCBPin No. Signal Nam

CN25-1 +24VOPF

CN25-2 nASTAMP


CN26-1 +24VOPC

CN26-2 nAPACHG

CN26-3 nAKEEP1

CN26-4 +24VOPC

CN26-5 nAKEEP2

CN26-6 +24VOPF

+24V

+24V

ON 0V60SEP 2004


Stamp Solenoid +24 VDC Power Supply

Stamp Solenoid Stamp Control Signal


Release Lever Plate Solenoid-1


Release Lever Plate Solenoid-2


Reversing Guide 1 Solenoid-1






Duplex 2 Guide Solenoid-1


+24V

+24V

ON 0V

+24V

+24V

ON 0V

+24V

ON 0V

+24V

+24V

ON 0V

+24V

DP-1520P/1820P/1820E

Ver. 1.0

CN27

CN28

CN26-7 nAPICR Duplex 2 Guide Solenoid-2



CN27-1 nAAPNT Original Detection Sensor

Original Detection Signal

CN27-2 GND

CN27-3 +5v


CN28-1 nAADL1

CN28-2 GND

CN28-3 +5v

CN28-4 nAADL2

CN28-5 GND

CN28-6 +5v


+24V

ON 0V

+5V61SEP 2004

-1

Original Detection Sensor-2

Ground

Original Detection Sensor-3

+5 VDC Power Supply


Original Lengh Sensor 1-1



Ground


+5 VDC Power Supply




Ground


+5 VDC Power Supply

ON 0V

0V

+5V

+5V

ON 0V

0V

+5V

+5V

ON 0V

0V

+5V

DP-1520P/1820P/1820E

Ver. 1.0

CN29

CN28-7 nAB4S SNS PCBCN41-4


CN28-8 nAA3S SNS PCBCN41-2


CN28-9 GND SNS PCB Ground

CN28-10 +5v


CN29-1 nAB1SN

CN29-2 GND

CN29-3 +5v

CN29-4 nAOAC

CN29-5 GND

CN29-6 +5v


+5V(H)0V

+5V

0V62SEP 2004

CN41-3

SNS PCBCN41-1

+5 VDC Power Supply


Read Point Sensor-1

Read Point Detection Signal

Read Point Sensor-2

Ground

Read Point Sensor-3

+5 VDC Power Supply

ADF Cover Open Detection Sensor-1

ADF Cover Open Detection Signal


Ground


+5 VDC Power Supply

0V

+5V

+5V

0VON

0V

+5V

+5V

0VOPEN

0V

+5V

DP-1520P/1820P/1820E

Ver. 1.0

CN30


CN30-1 nAEJC Eject Sensor-1 Original Eject Detection Signal

CN30-2 GND Eject Sensor-2 Ground

CN30-3 +5v

CN30-4 nAB2SN

CN30-5 GND

CN30-6 +5v

CN30-7 nAREV

CN30-8 GND

CN30-9 +5v

+5V

0VON

0V63SEP 2004

Eject Sensor-3 +5 VDC Power Supply

Duplex Eject Sensor-1

Duplex Eject Detection Signal


Ground


+5 VDC Power Supply

ADF Exit Cover Sensor-1

ADF Exit Cover Open Detection Signal


Ground


+5 VDC Power Supply

+5V

+5V

0VON

0V

+5V

+5V

0VOPEN

0V

+5V

DP-1520P/1820P/1820E

Ver. 1.0

3.7. CST2 PC BoardCN770


CN771Refer to SPC PC Board CN707.

CN772

CST2 PCBPin No. Signal Name Destination Signal Waveform Function



CN772-2 MGND

CN772-3 +5v

CN772-4 GND

CN772-5 OP3RST

CN772-6 OP3FLT

CN772-7 OP3FCK

CN772-8

CN772-9 OP3ENB

CN772-10 OP3FLD

+24V64SEP 2004

CST3 PCBCN807-2

Ground

CST3 PCBCN807-3

+5 VDC Power Supply

CST3 PCBCN807-4

Ground

CST3 PCBCN807-5

Option Feed FIFO Reset

CST3 PCBCN807-6

Option Feed FIFO Latch

CST3 PCBCN807-7

Option Feed FIFO Clock

CST3 PCBCN807-8

CST3 PCBCN807-9

Option Feed FIFO Enable

CST3 PCBCN807-10

Option Feed FIFO Load

0V

+5V

0V

+5V

Reset 0V

+5V

0V

+5V

Reset 0V

+5V

0V

+5V (H)

0V (L)

+5V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN773

CN774

CN772-11 OP3FDIN CST3 PCBCN807-11

Option Feed FIFO Input

CN772-13 +24VM CST3 PCBCN807-13


CN772-14 GND CST3 PCBCN807-14

Ground

CST2 PCBPin No. Signal Nam

CN773-1 +24VM

CN773-2 ADF2

CN773-3 +24VM

CN773-4 MRCLH2


CN774-1 +24VM

CN774-2 LIFTM2


+5V

0V

+24V65SEP 2004


Paper Feed Clutch-1


Paper Feed Clutch-2

2nd Paper Tray Feed Roller Drive Signal

Intermediate Roller Clutch-1



2nd Paper Tray Intermediate Roller Clutch Drive Signal


2nd Tray Lift Motor


2nd Tray Lift Motor

2nd Paper Tray Lift Motor Drive Signal

0V

+24V

+24V

ON 0V

+24V

+24V

ON 0V

+24V

+24V

ON 0V

DP-1520P/1820P/1820E

Ver. 1.0

CN775

CN776


CN775-1 PCHK2 No Paper Sensor-1

2nd Paper Tray Paper Detection Signal

CN775-2 GND No Paper Sensor-2

Ground

CN775-3 LDPHK2

CN775-4 UPLMT2

CN775-5 GND

CN775-6 LDUPL2


CN776-1 FDPCHK2

CN776-2 GND

CN776-3 LDFPCHK2

+5V

0V

0V66SEP 2004

No Paper Sensor-3



2nd Paper Tray Paper Level Signal


Ground




Registration Sensor-1

2nd Paper Tray Paper Registration Detection Signal


Ground



+1.2V

+5V

0V

0V

+1.2V

+5V

0V

0V

+1.2V

DP-1520P/1820P/1820E

Ver. 1.0

CN777

CN778


CN777-1 nCST2 2nd Tray Detection Sensor-1

2nd Paper Tray Detection Signal

CN777-2 GND 2nd Tray Detection Sensor-2

Ground

CN777-3 LDCST2


CN778-1 JAMDOR2

CN778-2 GND

CN778-3 LDJAM2

+5V

0V

0V67SEP 2004

2nd Tray Detection Sensor-3



Jam Cover Open Sensor-1

2nd Paper Tray Jam Access Cover Open Detection Signal


Ground



+1.2V

+5V

0VOPEN

0V

+1.2V

DP-1520P/1820P/1820E

Ver. 1.0

3.8. CST3 PC BoardCN800

CN801


CN800-1 PCHK3 No Paper Sensor-1

3rd Paper Tray Paper Detection Signal

CN800-2 GND No Paper Sensor-2

Ground

CN800-3 LDPHK3

CN800-4 UPLIMIT3

CN800-5 GND

CN800-6 LDUPL3


CN801-1 CST3

CN801-2 GND

CN801-3 LDCST3

+5V

0V

0V68SEP 2004

No Paper Sensor-3



3rd Paper Tray Paper Level Signal


Ground




3rd Tray Detection Sensor-1

3rd Paper Tray Detection Signal


Ground



+1.2V

+5V

0V

0V

+1.2V

+5V

0V

0V

+1.2V

DP-1520P/1820P/1820E

Ver. 1.0

CN802

CN803

CN804


CN802-1 JAMDOR3 Jam Cover Open Sensor-1

3rd Paper Tray Jam Access Cover Open Detection Signal

CN802-2 GND Jam Cover Open Sensor-2

Ground

CN802-3 LDJAM3


CN803-1 FDPCHK3

CN803-2 GND

CN803-3 LDFPCHK3


CN804-1 +24VM

CN804-2 nLIFTM3

+5V

0V

0V69SEP 2004





3rd Paper Tray Paper Registration Detection Signal


Ground




3rd Tray Lift Motor


3rd Tray Lift Motor

3rd Paper Tray Lift Motor Drive Signal

+1.2V

+5V

0V

0V

+1.5V

+24V

+24V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN805

CN806


CN805-1 +24VM 3rd Tray Drive Motor-1


CN805-2 MGND 3rd Tray Drive Motor-2

Ground

CN805-3 N.C. 3rd Tray Drive No Connection

CN805-4 P/S

CN805-5 LD


CN806-1 +24VM

CN806-2 ADF3

CN806-3 +24VM

CN806-4 MRCLH3

+24V

0V70SEP 2004

Motor-3

3rd Tray Drive Motor-4

Motor Start/Stop

3rd Tray Drive Motor-5

Motor Lock Detection Signal


Paper Feed Clutch-1


Paper Feed Clutch-2

3rd Paper Tray Feed Roller Drive Signal




3rd Paper Tray Intermediate Roller Clutch Drive Signal

+5V

0V

+5V

0V

+24V

+24V

0V

+24V

+24V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN808





Ground

CN808-3 +5v CST2 PCB +5 VDC Power Supply

CN808-4 GND

CN808-5 N.C.

CN808-6 N.C.

CN808-7 N.C.

CN808-8 N.C.

CN808-9 N.C.

CN808-10 N.C.

CN808-12 N.C.

CN808-13 ADF4

+24V

0V71SEP 2004

CN770-5

CST2 PCBCN770-6

Ground

CST2 PCBCN770-7

No Connection

CST2 PCBCN770-8

No Connection

CST2 PCBCN770-9

No Connection

CST2 PCBCN770-10

No Connection

CST2 PCBCN770-11

No Connection

CST2 PCBCN770-12

No Connection

CST2 PCBCN770-14

No Connection

CST2 PCBCN771-1

4th Paper Tray Feed Roller Drive Signal

+5V

0V

+24V

ON 0V

DP-1520P/1820P/1820E

Ver. 1.0

CN808-14 MRCLH4 CST2 PCBCN771-2

4th Paper Tray Intermediate Roller Clutch Drive Signal

CN808-15 LIFT4 CST2 PCBCN771-3

4th Paper Tray Lift Motor Signal

CN808-16 PCHK4 CST2 PCB 4th Paper Tray Paper

CN808-17 CST4

CN808-18 UPLIMIT4

CN808-19 FDPCHK4

CN808-20 JAMDOR4

CN808-21 CSTOP4

CN808-23 +24VM

CN808-24 MGND

CN808-25 N.C.


+24V

ON 0V

+5V

0V

+5V 72SEP 2004

CN771-4 Detection Signal

CST2 PCBCN771-5

4th Paper Tray Detection Signal

CST2 PCBCN771-6

4th Paper Tray Paper Level Signal

CST2 PCBCN771-7

4th Paper Tray Paper Registration Detection Signal

CST2 PCBCN771-8

4th Paper Tray Jam Access Cover Open Detection Signal

CST2 PCBCN771-9

4th Paper Feed Module Detection Signal

CST2 PCBCN771-11


CST2 PCBCN771-12

Ground

CST2 PCBCN770-15

No Connection

0V

+5V

0V

+5V

0V

+5V

0V

+5V

0V

0V

+24V

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN808-26 N.C. CST2 PCBCN770-16

No Connection

CST3 PCBPin No. Signal Name Destination Signal Waveform Function73SEP 2004

DP-1520P/1820P/1820E

Ver. 1.0

3.9. FXB PC BoardCN391

CN392

FXB PCBPin No. Signal Name Destination Signal Waveform Function

CN391-1 +5VP MJR PC BoardCN25-1

+5 VDC Power Supply

CN391-2 GND MJR PC BoardCN25-2

Ground

CN391-3 +24V

CN391-4 pCMLD

CN391-5 nHKOF

CN391-6 nCTON

CN391-7 AGND

FXB PCBPin No. Signal Nam

CN392-1 L2

CN392-3 L1

+5V

0V74SEP 2004

MJR PC BoardCN25-3


MJR PC BoardCN25-4

Line Switching Relay Drive SignalH : CML OnL : CML Off

MJR PC BoardCN25-5

External Phone Off-Hook Detection SignalH : On HookL : Off Hook

MJR PC BoardCN25-6

Ring Detection Signal

MJR PC BoardCN25-7

Ground


MJR PC BoardCN22-1

Line Signal

MJR PC BoardCN22-2

Line Signal

+24V

+5V(H)

0V(L)OFF

ON

+5V(H)

0V(L)

H: Standby Mode L: Ringing

0V

DP-1520P/1820P/1820E

Ver. 1.0

CN393

FXB PCBPin No. Signal Name Destination Signal Waveform Function

CN393-1 pSPKOT Speaker-1 Line Dial Tone Signal

CN393-2 GND Speaker-2 Ground

+1V

-1V(Min)

(Max)

0V75SEP 2004

DP-1520P/1820P/1820E

Ver. 1.0

3.10. MJR PC BoardCN22

Refer to FXB PC Board CN392.

CN25Refer to FXB PC Board CN391.76SEP 2004

DP-1520P/1820P/1820E

SEP 2004Ver. 1.

44.1.

3

12 DUPLEX EJECT

SENSOR

C

N

1

4

5

3124

CN726

LCD

P

N

L

3

P

N

L

1

C

N

2

2

0

C

N

5

2

CN657

CN12

12

56789101112131415

CN655

34

12

56789101112131415

16 16

34

C

N

2

3

0

12

567891011121314

34

C

N

2

5

0

P

N

L

2

CN223

12

56789

101112

34

C

N

5

1

C

N

1

1

CN1INV

CN650

CN21

C

N

2

2

C

N

2

6

C

N

2

5

C

N

2

4

C

N

2

8

C

N

3

0

C

N

2

9

ADF

H

O

M

E

P

O

S

I

T

I

O

N

S

E

N

S

O

R

SCANNING MOTOR

SCANNING LAMP

RELEASE LEVER PLATE SOLENOID

REVERSING GUIDE 1SOLENOID

STAMPSOLENOID

131415

123456789

1

0

1

1

1

2

1

3

1

4

1

5

1

6

1

7

1

8

1

9

2

0

2

1

2

2

2

3

2

4

2

5

2

6

2

7

2

8

2

9

3

0

3

1

3

2

3

3

3

4

3

5

3

6

3

7

3

8

3

9

4

0

12

34

1

1

1

1

1

1

1

G5G6

PS

CN703

H

D

D

C

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