Sharp AR-C240P Service Manual. Parts Guide

S E R VIC E MANUAL

C ODE : S M-A R C 240P -1

DIG IT A L C OL OR L E D P R INT E R

MODE L

C ONT E N T S

[1] C ONF IG UR AT IONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

[2] P AR T S R E PL AC E ME NT . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . 17

[3] ADJ US TME NT S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

[4] R E G UL AR MAINT E NANC E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

[5] T R OUB LE S HO OT ING P R OC E DUR E S . . . . . .. . . . . . . . . . . . . . . . 111

[6] C ONNE C T IO N DIAG R AM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

[7] AP P E NDIX A INT E R F AC E S P E C IF IC AT IONS . .. . . . . . . . . . . . . 156

[8] AP PE NDIX B 2ND/3R D T R AY MAINT E NANC E . . . . . . . . . . . . . . . 160

AR -C 240P

[9] AP PE NDIX C E R R O R ME S S AG E S . . . . . . . . . . . . . . . . . . . . . . . . 165

[10] P AR T S G UIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

P arts marke d with “ ” a re important for ma intaining the s afety of the s et. B e s ure to re place thes e pa rts with specified ones for maintaining the s afety a nd performa nc e of the s et.

This docume nt has been publishe d to be us ed

S HA R P C OR P O R A T ION

for a fter s ales s ervice only. The contents are s ubject to cha nge without notice.

CONTENTS

1. CONFIGURATIONS ......................................................................................... 6

1.1 System Configuration....................................................................................................... 6

1.2 Printer Configuration ........................................................................................................7

1.3 Supplies and Consumables.............................................................................................. 8

1.4 Specifications ................................................................................................................... 9

2. PARTS REPLACEMENT................................................................................ 17

2.1 Precautions in Replacing Parts ...................................................................................... 17

2.2 Parts layout .................................................................................................................... 19

2.3 Replacing Parts..............................................................................................................25

2.3.1 Top Cover......................................................................................................... 27

2.3.2 LED Head / LED Spring / Post-Guide............................................................... 28

2.3.3 Top Cover Unit ................................................................................................. 29

2.3.4 Control Panel Assy/ Control Panel Bezel/ LED Control PWB/ Toner Sensors/ Stacker Full Sensor/ Control Panel/ Control Panel Tape Harness/

Eject Rollers ..................................................................................................... 30

2.3.5 Top Cover Handle/ Top Cover Latch/ Top Cover Latch Spring........................ 31

2.3.6 Eject Guide Assy .............................................................................................. 32

2.3.7 Cassette Assy/ Front Cover Assy/ Front Cover Inner Baffle ........................... 33

2.3.8 Retard Pad Assy/ Retard Pad Assy Spring ...................................................... 34

2.3.9 Feed Roller and Nudger Roller......................................................................... 35

2.3.10 Rear Cover ....................................................................................................... 36

2.3.11 Face-Up Tray.................................................................................................... 37

2.3.12 Left Side Cover................................................................................................. 38

2.3.13 Right Side Cover .............................................................................................. 39

2.3.14 Multipurpose Tray Assy/ Multipurpose Tray Cover Assy/ Links/

Multipurpose Tray Top Cover/ Multipurpose Tray Drive Gear.......................... 40

2.3.15 Drum Contact Assys......................................................................................... 41

2.3.16 Media Thickness Sensor Assy......................................................................... 42

2.3.17 Registration Roller Assy (A)/ Registration Drive Gear (A) ................................ 43

2.3.18 Registration Roller Assy (B) ............................................................................. 44

2.3.19 Registration Clutch and Registration Motor Assy ............................................. 45

2.3.20 Main Cooling Fan ............................................................................................. 46

2.3.21 Color Registration Sensor Assy........................................................................ 47

2.3.22 Duplex Guide Assy ........................................................................................... 48

2.3.23 Electrical Chassis Cooling Fan......................................................................... 49

2.3.24 Printer Engine Controller PWB ......................................................................... 50

2.3.25 Printer Unit Chassis.......................................................................................... 51

2.3.26 Entrance Cassette Sensor Actuator ................................................................. 52

2.3.27 Entrance Sensor PWB...................................................................................... 53

2.3.28 Entrance MT Sensor Actuator / Entrance Belt Sensor Actuator /

Entrance Waste Chassis Sensor Actuator ...................................................... 54

2.3.29 Fuser Exit Roller ............................................................................................... 55

2.3.30 Exit Sensor Assy .............................................................................................. 56

2.3.31 Fuser Latching Handle (L) ................................................................................ 57

2.3.32 Belt Motor Assy ................................................................................................ 58

2.3.33 Fuser Latching Handle (R) ............................................................................... 59

2.3.34 Main Motor Assy............................................................................................... 60

2.3.35 Main Feeder Drive Motor.................................................................................. 61

2.3.36 Contact Assy/ Left Plate Assy .......................................................................... 62

2.3.37 Low Voltage Power Supply............................................................................... 63

2.3.38 High voltage power supply ............................................................................... 64

2.3.39 Main Feed Assy................................................................................................ 65

2.3.40 Cassette/ Left Guide Assy ................................................................................ 66

2.3.41 Cassette/ Right Guide Assy.............................................................................. 67

2.3.42 Fuser Unit ......................................................................................................... 68

3 /

2.3.43 Belt Unit ............................................................................................................ 69

2.3.44 Duplex Unit ....................................................................................................... 70

2.3.45 Guide Rails (L) and (R)..................................................................................... 71

2.3.46 Duplex Transport Assembly ............................................................................. 72

2.3.47 CU Assy............................................................................................................ 74

3. Adjustment .................................................................................................... 76

3.0 System Maintenance MENU .......................................................................................... 76

3.0.1 ID Check Pattern Printing ( " TEST PRINT MENU " item )............................... 77

3.1 Maintenance Mode and Functions ................................................................................. 77

3.1.1 Maintenance menu ........................................................................................... 77

3.1.2 Engine maintenance mode............................................................................... 79

3.1.2.1 Operator panel .................................................................................. 79

3.1.2.2 Normal self-diagnostic mode (Level 1).............................................. 79

3.1.2.2.1 Entering self-diagnostic mode (Level 1) ............................ 80

3.1.2.2.2 Exiting the self-diagnostic mode ....................................... 80

3.1.2.3 Switch scan test ................................................................................ 80

3.1.2.4 Motor clutch test ................................................................................ 84

3.1.2.5 Test print ........................................................................................... 86

3.1.2.6 Initializing NVM ................................................................................. 90

3.1.2.7 Displaying the consumables counter ................................................ 91

3.1.2.8 Displaying the consumables continuation counter ............................ 91

3.1.2.9 Panel display details ......................................................................... 92

3.1.3 Various print jobs with single printer unit attached with a controller ................. 97

3.2 Adjustment After Replacing Parts .................................................................................. 98

3.2.1 Precautions in replacing the engine control board ........................................... 98

3.2.2 Precautions in replacing EEPROM................................................................... 98

3.2.3 Replacing EEPROM after replacing the TIG board .......................................... 99

3.2.4 Destination Setting (Checking Metod: Printing Demo Page)............................ 99

3.2.5 Recovery Flash ROM data on TIG board ....................................................... 100

3.3 Adjusting the Density ....................................................................................................100

3.4 Paper Thickness Detection Sensitivity Adjustment and Media Thickness Detection

Value Check..................................................................................................................101

3.4.1 Applicable Operating Systems and Interfaces, and File Required ................. 101

3.4.2 Setting ............................................................................................................ 102

3.4.2.1 Menu Setting ....................................................................................102

3.4.2.2 Media Setting ...................................................................................104

3.4.2.3 Sensitivity Adjustment ..................................................................... 105

3.4.2.4 Actions for NG Sensitivity Adjustment............................................. 106

3.4.3 Inputting the density of the calibration chip for density detection ................... 107

3.4.3.1 Density Adjustment Menu Setting ................................................... 107

3.4.4 Electronic Serial Number Input....................................................................... 109

4. regular maintenance ................................................................................... 110

4.1 Parts Replaced Regularly ............................................................................................ 110

4.2 Cleaning ....................................................................................................................... 110

4.3 Cleaning the LED Lens Array ...................................................................................... 110

4.4 Cleaning the Pick-up Roller ......................................................................................... 110

5. Troubleshooting Procedures ..................................................................... 111

5.1 Precautions before troubleshooting ............................................................................. 111

5.2 Precautions before handling an abnormal image ........................................................ 111

5.3 Precautions upon handling an abnormal image........................................................... 111

5.4 Preparing for Troubleshooting ..................................................................................... 112

5.5 Troubleshooting Procedure.......................................................................................... 112

5.5.1 LCD message list ........................................................................................... 113

5.5.2 Preparing for troubleshooting ......................................................................... 119

5.5.3 Troubleshooting for abnormal images ............................................................ 130

5.6 Fuse check................................................................................................................... 145

PARTS GUIDE.................................................................................................................180

6. CONNECTION DIAGRAM ............................................................................ 146

6.1 Resistance Checks ...................................................................................................... 146

6.2 Program/Font ROM Layouts ........................................................................................ 150

APPENDIX A INTERFACE SPECIFICATIONS ................................................. 156

1. Parallel Interface Specifications ................................................................................... 156

1.1 Parallel Interface..............................................................................................156

1.2 Parallel Interface Connector and Cable.......................................................... 156

1.3 Parallel Interface Level ................................................................................... 156

1.4 Timing Charts ................................................................................................. 157

1.5 Parallel I/F Signals.......................................................................................... 158

2. Universal Serial Bus (USB) Interface Specifications.................................................... 159

2.1 USB Interface ................................................................................................. 159

2.2 USB Interface Connector and Cable .............................................................. 159

2.3 USB Interface Signals .................................................................................... 159

APPENDIX B 2ND/3RD TRAY MAINTENANCE .............................................. 160

1. Parts Replacement ...................................................................................................... 160

1.1 Cover Idle Roller Assy .................................................................................... 160

1.2 PCB ................................................................................................................ 161

1.3 Feeder Drive Assy .......................................................................................... 162

2. 2nd/3rd Tray PARTS LIST ............................................................................ 163

APPENDIX C ERROR MESSAGES ................................................................. 165

1. Error messages ........................................................................................................... 165

2. Error messages : Color, Media Detect ......................................................................... 172

3. Warning messages : usage, media .............................................................................. 175

4. Warning messages : Job Account ................................................................................ 176

5. Other Warning .............................................................................................................. 177

1. CONFIGURATIONS

1.1 System Configuration

Figure 1-1 shows the system configuration of the ARC200P.

Hopping

MT/

Registration

<Sensors, Switches and Thermistors>

Pulse Motor

Paper size sensor (4 bits)

Paper empty sensor

Paper near empty sensor

MT paper empty sensor

FF home switch

Loading sensor 1

Loading sensor 2

Media Thickness Detection

Density Detection

< advanced Sensors,>

Color Misalignment Detectin

LED Head

C ID M ID Y ID K IDBelt Heat

M M

Junction Board

Engine Control

Power Unit

Low Voltage

2nd/3rd Tray

Power Unit

High Voltage

Fuser

Unit

Duplex

Unit

K-ID

Unit

C-ID

Unit

M-ID

Unit

Y-ID

Belt

Unit

Figure 1-1

Operator Panel

IDE

DIMMs

3 ⋅ ROM

Centronics I/F

6 /

DIMM

4 ⋅ RAM

USB I/F

I/F(HDD)

Note

2 ⋅ Option Slots

DC Fan

LAN Card made by JCI

Note Option Slot:

1.2 Printer Configuration

The inside of the printers is composed of the followings:

• Electrophotographic Processor

• Paper Paths

• Controller Block (CU and PU)

• Operator Panel

• Power Units (High Voltage Unit and Low Voltage Unit)

Figure 1-2 shows the printer configuration.

Figure 1-2

7 /

1.3 Supplies and Consumables

8 /

Product Code Description Quantity Estimated Yield Comments

AR-C20TBU Black Toner Cartridge

AR-C20TCU Cyan Toner Cartridge

AR-C20TMU Magenta Toner Cartridge 1

AR-C20TYU Yellow Toner Cartridge 1

AR-C20BDR Black Image Drum

AR-C20CDR Cyan Image Drum

AR-C20MDR Magenta Image Drum

AR-C20YDR Yellow Image Drum

AR-C20TB1 Transfer Belt 1 60,000 Images/Belt

AR-C20FU1 Fuser Unit 1 60,000 Images/Belt

Deluxe Printer Cabinet

AR-C20ABD

(with Door)

1 30,000 Images/Unit

1 30,000 Image/Unit

1 30,000 Images/Unit

10,000 Images/Cartridge 10,000 Images/Cartridge 10,000 Images/Cartridge 10,000 Images/Cartridge

@ 5% Image Area @ 5% Image Area @ 5% Image Area @ 5% Image Area (Customer replaceable) (Customer replaceable) (Customer replaceable) (Customer replaceable) (Customer replaceable) (Customer replaceable)

Option Configuration

(4) Internal Hark Disk (AR-C20HD)

SHP16x64S133C3 (128MB) SHP32x64S133C3-B (256MB) SHP64x64S133C3 (512MB)

The followings are available as options on the ARC200P.

(1) 2nd Tray/ 3rd Tray (AR-C20PFU)

(2) Duplex Unit (AR-C20ADU)

(3) Expansion Memory

9 /

1.4 Specifications

(1) External Dimensions Height: 430mm Width: 430mm Length: 620mm

(2) Weight 42 kg

(3) Papers Type: Ordinary paper, Transparencies (Recommended: MLOHP01)

(4) Print Speed Color: 20 pages per minute (Transparency: 8 pages per minute)

(5) Resolution 600 ⋅ 600 dots per inch

Size: Postal card, Legal 13" or 14", Executive, A4, A5, B5, A6 (Only

the 1st tray and the front feeder support A6 and postal-card sizes.)

Weight: 1st tray55 kg to 151 kg (64 to 176g/m

Front feeder 55 kg to 172 kg (64 to 203g/ m

)

Monochrome: 24 pages per minute (Transparency: 12 pages per minute) Postal Card, Label, Thick Paper: 12 pages per minute

(6) Power Input 115 - 127 V , 220 - 240 V

(7) Power Consumption Peak: 1500W Normal Operation: 500W (5% duty)

Idle: 150W Power Saving Mode: 45W or less

(8) Frequency 50Hz or 60Hz ±2Hz

(9) Noise Operation: 56 dB (Without second tray)

Standby: 45 dB Power Saving: 43 dB

(10) Consumable Life Toner Cartridge: 5,000 pages (5% duty) (each of Y, M, C and K)

Large-Capacity Toner Cartridge: 10,000 pages (5% duty)

(each of Y, M, C and K)

Image Drum: 30,000 pages (5% duty, Continuous printing)

(each of Y, M, C and K)

(11) Parts Replaced Periodically Fuser Unit Assy: Every 60,000 pages

Belt Cassette Assy: Equivalent of 60,000 pages (3 pages/job)

10 /

(12) Temperatures and Relative Humidities

Temperature

Temperature Condition

Temperature( F) Temperature( C) Remark

Operation 50 to 89.6 10 to 32 17 to 27 C

(Temperatures to assure full color print quality)

Non-Operation 32 to 109.4 0 to 43 Power-off

Storage (Max. One Year) -14 to 109.4 -10 to 43 With drum and toner

Transport (Max. One Month) -20 to 122 -29 to 50 With drum and without toner

Transport (Max. One Month) -20 to 122 -29 to 50 With drum and toner

Humidity

Humidity Condition

Relative Humidity Max. Wet-Bulb Remark

(%) Temperature( C)

Operation 20 to 80 25 50 to 70% (Humidities to assure full

color print quality)

Non-Operation 10 to 90 26.8 Power-off

Storage 10 to 90 35

Transport 10 to 90 40

(13) Printer Life 600,000 pages (on a A4-size basis) or five years

11 /

2. OPERATION DESCRIPTION

The C7500/C7300 of printers, tandem color electrophotographic page printers, adopt technologies such as an LED array, OPC, dry single-component non-magnetic developing, roller transfer and heat-compression fusing. A black-writing printing method by shedding light on print areas is used.

Figure 2-1-1(600dpi) provides the block diagram of the printer.

FAN0

Sns.

STUCKFULL

14P

POWER

STUCK

TNRC

CPOW2

16P

OPTN

TNRM

MPOW2

3P3P3P

TNRY

YPOW2

TNRK

Toner Sensor (Y73-board)

KPOW2

PANEL

Belt

Fuse

C Fuse

M Fuse

Y Fuse

K Fuse

N71 Board

14P

JODEN

C LED HEAD

M LED HEAD

Y LED HEAD

K LED HEAD

Control Panel

X7N board

Heat

Motor

Belt

Motor

C IDU

Motor

M IDU

Motor

Y IDU

Main Motor Assy Belt Motor Assy

Motor

K IDU

Motor

FF/Regist

Motor

Hopping

Up/Down

Manual Bypass Feeder (MBF)

WHITE

BLUE

Paper Tray 1 Paper Empty

Paper Tray 2 Near Empty

WHITE YELLOW

Exit solenoid

BLACK YELLOW RED BLUE

4P 4P 4P 4P

shutter clutch

Cord 7

RED WHITE

4P 4P

green

HUM

TEMP

OHP Sen.

MBF Paper Empty

BLUE

OPTION

MBF Stage

Figure 2-1-1 600dpi

AC Switch

CN5

HDD

RAM

10P

TIG board

CN2

USB

CENTRO

LAN

ROM

Low-voltage

power supply

26P

CN3

CN2

FAN(LEFT)

FAN

High -voltage

power supply

16P

FAN

CN1 CN1

FAN

OPTN

C1200

M1200

MPOW

K1200 KPOW

DCL

red

yellow

HOPFF

SHUTTER

yellow

Paper

thickness

YELLOW

CPOW

CUIF

Y1200

YPOW

PCB-K7N

16P

FAN8

red

BEL THET

red

3P3P

Regist

Gray

FAN2 FAN1

red

RCL

yellow

red

yellow

clutch

14P

Blue

16P

FAN7

RSNS

REG

blue

PARTTEMP

10P

14P

red

black

FAN4

yellow

FAN5

FSENS

JODEN

22P

Exit sensor

HOP(INSNS1)

PAPIN(INSNS2)

PSWR(WRSNS)

TNRFUL

FCOVER

FEED

TR10P

R71 board

yellow COVOPN

PSIZE

cable40

POWER

HVOLT

DUPLEX

16P

26P

Duplex Unit

Upper Cover

Open Microswitch

Open

Front Cover

V71 Board

Motor

DUP

Microswitch

Main

Clutch

BLUE

Paper Size

PXC-Board

BLUE

WHITE

14P

RSENS

FSENS

INSENS

Sensor

WHITE

Z7L

Z7R

Plate Senosr

Density

FAN1 (Pr)

FAN2 (Pow)

12 /

2.1 Main Board (TIG PWB)

Figure 2-2 provides the block diagram of the main control board (TIG PWB).

USB

[1]

[2]

[0]

SPD

3.3V 100MHz

SDRAM DIMM

SDRAMCLK

C2516

3.3V

DRCLK

100MHz

IDE

HDD

FPGA

for IDE

33MHz

RAMCLK

From 702

L60851

33MHz

[15:0][7:0]

PCI

Reset

CENT

[15:0]

Local

48MHz

LVC

161284

PCI BUS [31:0]

PCI

Slot

C2 LSI

MHM2031-002

33MHz

SUB Bus

EEPROM

D [63:0]

b Line Address. Cont

a Line Address. Cont

Flash

SUB Bus A/D [31:0], Cont

A,Cont

[15:0]

Mask 32bit

D [63:0] D [63:0]

33MHz 3.3V

ROM DIMM

PLL102-5

33MHz

2.5V 100MHz

CA1CLK

to PU Panel I/F

to PU PU-CU Command I/F

48MHz

to USB

Crystal

MHM

CA1 LSI

Video Data K, Y, M, C

11N7)

(uPD856

2030-003

Video I/F From PU

Panel I/F From C2 LSI

PU-CU I/F To C2 LSI

Core:2.5V

200

PU-CU

I/O:3.3V

CPU I/O:2.5V

2.5V

2.5V Regulator

3.3V

D [63:0]

A [31:0]

I/O 2.5V

1.8V

Reset IC

1.8V

Regulator

Cont

PPC

750cx

Core:1.8V

(PU3V)

PST596

M62733ML

12V

PLL702-01

2.5V

MPUCLK

I/O:2.5V

(PU12V)

Resonator

14.31818MHz

100MHz

internal

CPU CLK

(+5V)

PST596

3.3V Regulator

setting Resister

to each LSI

74LVC04

3.3V

Figure 2-2

13 /

(1) CPU

The CPU is PowerPC750CXe, a 64-bit bus RISC processor, which inputs an 100-MHz CLK (= BUS CLK), and operates at 450MHz that is 4.5 times the input.

(2) Cache

PPC750Cxe has its cache only inside of it. Speed: Same as CPU Core CLK speed Capacity: Primary Cache: 32 K bytes in D-cache capacity, 32 K bytes in I-cache capacity Secondary Cache: 256 K bytes

(3) ROM

ROM is to be inserted into the two 168 pin DIMM slots. The slot A is for program ROM and the slot B is for Japanese kanji fonts. The slot C is not assigned.

(4) RAM

RAM is to be inserted into the three 168 pin DIMM slots. The DIMMs must be fitted in descending labeled type No. order into the slots 1, 3, 2 and 4.

SDRAM DIMM Specifications:

Speed: PC133 or more Capacity: 64/128/256/512 MB Configuration: Without parity. Without ECC. SPD information is required.

(5) EEPROM

EEPROM, an 8-pin DIP package, is to be inserted into the IC socket. The EEPROM is of 16 Kbits for 3.3V power supply, and settings for controlling the controller block are stored in it.

(6) Flash ROM

A 4Mbyte flash ROM is surface-mounted on the TIG board. The flash ROM is composed of four 2048k-by-16bit chips, and fonts and macros can be stored in it.

(7) Memory Control LSI (CAI)

A 696-pin BGA package ASIC made by NEC. The chip mainly controls a CPU I/F, memory, video data compression and decompression, and a PU-video I/F.

(8) Interface Control LSI (C2)

A BGA package ASIC made by Toshiba, which controls a PU command I/F, operator panel I/F, IDE I/F, Centronics I/F, USB I/F, PCI I/F, EEPROM and a SPD (SDRAM DIMM) I/F.

(9) IDE HDD

An IDE connector is surface-mounted on the board to which an IDE HDD assembled using exclusive molds will be connected. The IDE HDD is used for storing font data, spooling edited video data and registering form data.

(10) PCI Bus Option

Two PCI I/F slots are provided for option board use. The bus, which uses an Oki Data original connector, can accept an Ethernet board.

(11) Host Interface

Standard: Centronics two-way parallel I/F (IEEE-1284-compliant)

USB (USB1.1-compliant)

Additional Board: (connected to PCI BUS) Ethernet Board

14/

2.2 Engine Controller Board (K7N PWB)

28MHz

OPTION TRAY

PAPER THICKNESS SENSOR

COROR REGISTRATION SENSOR

HEAT ROLLER TEMP

OHP

TEMPATURE HUMIDITY

HEAD TEMP

DENSITY

COVER OPEN (UPPER, STACKER, RIGHT SIDE)

1ST TRAY SENSORS (PAPER END, PAPER NEAR END)

PAPER FEED SYSTEM SENSORS (PAPER FEED, PAPER REGISTRATION, EJECT)

MT SENSORS (STAGE POSITION, PAPER END)

DUPLEX

DISPOSAL TONER SENSOR

ANALOG

CPU

MSM66Q577

PAPER SIZE

STACKER FULL

INT

CLK

RESET

FLASH

SRAM

MCON

LSI

EEPROM

CONTROL PANEL

MOTOR DRIVER

PULSE MOTOR *9

GEARED MOTOR

CLUTCH

PU FAN FUSER FAN

ID, BELT, FUSER CHECKS

HIGH VOLTAGE POWER SUPPLY SERIAL INTERFACE

32MHz

CLOCK GENERATOR

LED HEAD (K)

LED HEAD (Y)

LED HEAD (M)

LED HEAD (C)

SDRAM

DCON

LSI

Figure 2-3

The engine control block (PU) is controlled by the engine controller board (K71 PWB) which consists of a CPU (MSM66Q577), general LSI chip, flash ROM, EEPROM, pulse motor drivers and a video memory (see Figure 2-3).

(1) CPU

This, a 16-bit CPU with an AD converter (OKI MSM66Q577), controls the entire system.

(2) General LSI

This LSI (UPD65454GD-241-LML, UPD65946GD-137-LML), which is contained in the printer engine control block, incorporates 4 megabits of video memory and has functions such as engine-controller interfacing, LED interfacing, motor control, sensor input, video memory control, main scan color misalignment correction, skew correction and high-voltage power supply control.

15/

(3) MCON LSI

This LSI is used for inport of SENSORs and the cntrols of Pulse Motors,Cluches,FANs and High Voltage Power Suply.

(4) Flash ROM

The flash ROM (29F800-70) is of 8-Mbits, and PU programs are stored in it.

(5) EEPROM

The EEPROM (NM93C66N-NW) is of 4-Kbits, and mounted on the board with an IC socket. Correction values are stored in it.

(6) Pulse Motor Driver

The pulse motor driver (A2919SLBTR, A3955SLBTR,MTD2005) drives the eight pulse motors to revolve the ID and transport media.

(7) SRAM

This SRAM (628100LG-55L) is used as working memory of the CPU.

(8) SDRAM

This SRAM (56V16160T) is used as data memory of the DCON LSI.

2.3 Power Units

There are a low voltage power unit consists of an AC filter circuit, low voltage power circuit and heater driver circuit, and a high voltage power unit organizes a high voltage power circuit.

(1) Low Voltage Power Unit

This circuit generates the following voltages:

Output Voltage Use for

+5 V LED head

+5 V Logic circuit power supply, PU CPU

+34 V Motor, drive voltage and power supply voltage for high voltage power supply

+12 V High voltage power supply, Media Thickness Sensor power supply

(2) High Voltage Power Unit

This circuit generates the following voltages of not less than +34V, which are required for electrophotographic process, according to control sequences from the controller board.

Output Voltage Use for Remark

CH -1000V to 1.4KV+/-50V Voltage to charging roller

DB -50 to -300V/ +300V Voltage to developing roller

SB -300V to -450V/ 0V Voltage to toner supplying roller

TR C: 0KV to 7KV Voltage to transfer roller Variable

K,Y,M: 0KV to 6KV

16/

2. PARTS REPLACEMENT

This section describes the procedure for replacing the parts, assemblies and units in the field. The replacing procedure is given for detachment. To attach, use the reverse procedure.

2.1 Precautions in Replacing Parts

(1) Before replacing the parts, be sure to remove the AC cable and the interface cable.

(a) To remove the AC cable, always use the following procedure.

i) Flip the power switch of the printer off (to “O”). ii) Pull the AC inlet plug of the AC cable out of the AC receptable. iii) Remove the AC cable and the interface cable from the printer.

(b) To connect the printer again, always use the following procedure.

i) Connect the AC cable and the interface cable to the printer. ii) Insert the AC inlet plug into the AC receptacle. iii) Flip the power switch of the printer on (to “I”).

Disconnect

(2) Do not disassemble the printer so long as it operates properly.

(3) Minimize the disassembly. Do not detach parts other than those shown in the replacing procedure.

(4) For maintenance, use designated tools.

(5) Follow the order instructed to disassemble the printer. Incorrect order may damage the parts.

(6) Small parts such as screws and collars tend to get lost, so temporarily place and fix them in

(7) When handling ICs and circuit boards such as microprocessors, ROMs and RAMs, do not use

Connect

their original positions.

gloves that likely to have static.

(8) Do not place the printed circuit boards directly on the printer or the floor.

17 /

[Maintenance Tools]

Table 2-1 lists tools necessary to replace the printed circuit boards and the units.

Table 2-1 Maintenance Tools

No.

7 1

No. 1-100 Philips screwdriver

No. 2-200 Philips screwdriver, Magnetized

No. 3-100 screwdriver

No. 5-200 screwdriver

Digital multimeter

Pliers

Handy cleaner

LED Head cleaner

Q' ty Place of use RemarksService Tools

2~2.5 mm screws

3~5 mm screws

9 1

Label

High voltage probe

Transparency sheet ( thickness premeasured) 0ZZ42404301//

Stage height adjustment jig 0ZZ42423701//

Microdriver

2.0mm

Adjustment for Media Thickness sensor

Adjustment for Lever adjust (Media Thickness)

18 /

2.2 Parts layout

Figure 2-1

19 /

[Top Cover Assy]

Figure 2-2

20 /

[Printer Unit-1/2]

Figure 2-3

21 /

[Printer Unit-2/2]

Figure 2-4

22 /

[Cassette Guide Assy (L),(R)]

C’

Figure 2-5

23 /

[Duplex Unit]

Figure 2-6

24 /

2.3 Replacing Parts

This section describes how to replace the parts and assemblies shown in the following disassembling system diagram.

AR-C200P

Print Engine Controller PWB (2.3.23) x 4 LED Assy (2.3.2)

Low Voltage Power Supply (2.3.36)

High Voltage Power Supply (2.3.37)

0ZZ41940001//

Printer NIP

0ZZ40839001// Left Cassette Guide Assy (2.3.40) 0ZZ40839406// Right Cassette Guide Assy (2.3.41)

0ZZ40839801//

Main Feed Assy (2.3.39)

0ZZ40844306// Regist Roller Assy (A) (2.3.17)

0ZZ41940201// Printer Unit

0ZZ41128101// Insurator 0ZZ42153101// Main Cooling Fan Assy (2.3.20) 2381023P0003 HV Tape Harness

40847306 Main Motor Assy (2.3.34)

40848801 Transport (Transfer) Belt Motor Assy (2.3.32) 0ZZ40850201// Contact Assy (2.3.36) 0ZZ41303606// Left Plate Assy (2.3.36) 0ZZ40864301// Rear Cover (2.3.10) 0ZZ40864411// Left Side Cover (2.3.12) 0ZZ40864503// Right Side Cover (2.3.13) 0ZZ40864601// Front Cover Assy (2.3.7) 41042501 Front Cover Inner Baffle (2.3.7) 0ZZ41374902// Face Up Tray (2.3.11) 0ZZ40864901// Frame Assy - Release

0ZZ40371302// Feed Roller (2.3.9) 0ZZ40325401// Main Feeder Drive Gear (2.3.39) 0ZZ40313202// Nudger Roller (2.3.9)

0ZZ41940301// Printer Chassis (2.3.17) 0ZZ40844307// Regist Roller Assy (B) (2.3.18) 0ZZ40845801// Registration Motor Assy (2.3.19) 0ZZ41187102// Registration Clutch (2.3.19) 0ZZ40859201// Duplex Guide Assy (2.3.22)

0ZZ40848501// Main Feeder Drive Gear A (2.3.35) 0ZZ40848601// Main Feeder Drive Gear B (2.3.35) 0ZZ40846001// Main Feeder Motor (2.3.35)

0ZZ40841401// Fuser Latching Handle (R) (2.3.33) 0ZZ40841501// Fuser Latching Handle Spring (2.3.33)

Plastic Slide (2.3.41) 0ZZ40349101// Cassette Guide Pivot (L) (2.3.41) 0ZZ40349701// Plastic Roller (2.3.41) 0ZZ40928101// Cassette Spring (2.3.41)

Cassette Lock (2.3.41)

Cassette Lock Spring (2.3.41)

Foot (2.3.41) 0ZZ40368304// Paper Size Sensing PWB PXC (2.3.41)

0ZZ50928901//

Paper Size Actuator (2.3.41) 0ZZ41143701// Duplex Assy Ground contact (2.3.41) 0ZZ41309106// 2nd Tray Connector (2.3.41) 0ZZ41285701// Plate Assy-SW(Front) (2.3.41)

Plastic Slide (2.3.40) 0ZZ40349102// Cassette Guide Pivot (R) (2.3.40) 0ZZ40349701// Plastic Roller (2.3.40) 0ZZ40928101// Cassette Spring (2.3.40)

Cassette Lock (2.3.40)

Cassette Lock Spring (2.3.40)

Foot (2.3.40)

0ZZ41275901// Microswitch-Assy (2.3.41)

0ZZ40841301// Fuser Latching Handle (L) (2.3.31) 0ZZ40841501// Fuser Latching Handle Spring (2.3.31) 0ZZ40841601// Entrance Sensor Actuator #1 (2.3.26) 0ZZ40841701// Entrance Sensor Actuator #2 (2.3.28) 0ZZ40841801// Entrance Senspr Actuator #3 (2.3.28) 0ZZ42199601// Waste Toner Sensor Actuator (2.3.28)

0ZZ41253601//

Duplex Gate solenoid Assy (2.3.29) 0ZZ41968701// Registration Shutter Solenoid Assy 0ZZ41944201// Registration Shutter 0ZZ41968501// Registration Shutter Spring 0ZZ42170801// Fuser Drive Gear-C (2.3.29) 0ZZ40323902// Fuser Exit Roller (2.3.29) 0ZZ40316301// Fuser Drive Gear-B (2.3.29)

Fuser Exit Roller Bushing (L) (2.3.29)

Fuser Exit Roller Bushing (R) (2.3.29) 0ZZ41189701// x 4 Drum Contact Assy (2.3.15) 0ZZ41258301// Entrance Sensor PWB (2.3.27) 0ZZ41312801// Left Top Cover Spring Assy (2.3.25) 0ZZ41312901// Right Top Cover Spring Assy (2.3.25) 0ZZ41944001// Color Registration Sensor Assy (2.3.21) 0ZZ41073601// Exit Sensor Assy (2.3.30)

25 /

0ZZ41911201// Thickness Plate Assy 0ZZ41928801// Stage-Pickup 0ZZ41888701// Cover-Seal-Sensor 0ZZ41911101// Thickness Sensor Assy

CU Board Assy

0ZZ41940701// Cover Assy Stacker

0ZZ40862006// Multipurpose Feeder Assy (2.3.14)

0ZZ40952701// Multipurpose Tray Top Cover (2.3.14) 0ZZ40866701// Cassette Assy (2.3.8)

Board Assy-CU

0ZZ40859702// Top Cover (2.3.1) 0ZZ41988101// Cover-Assy-Inner (2.3.3)

0ZZ40325101// Multipurpose Feeder Drive Gear (2.3.14) 0ZZ41045801// Link (2.3.14) 4YB4120-1137P001 MT Paper Empty Sensor (2.3.14) 0ZZ41849401// MT OHP Sensor (2.3.14) 0ZZ41276001// MT Position Sensor (2.3.14) 0ZZ40866301// Multipurpose Tray Cover Assy (2.3.14)

0ZZ41438401// Retard Pad Assy (2.3.8) 0ZZ41439401// Retard Pad Assy Spring (2.3.8)

⋅

Board_TIG 0ZZ41964009// Board Assy.-CU(711) 0ZZ41278601// Guide_Rail (A) 0ZZ41278701// Guide_Rail (B) 0ZZ41410201// Motor-Fan 60x60x15 0ZZ41723901// Screw PB4013-3100P006 x9 Cup Screw (S Tight M3) P3-6G Screw (Round Head)

Tapping Screw

Screw(Round Head, SW+2W) 0ZZ41467401// Plate FG (Centronics) 0ZZ41254601// Plate Blank

⋅

0ZZ41316501//

Top Cover Inner Frame Assy (2.3.4) 0ZZ42216201// LED Assy Spring (2.3.2) 0ZZ41960901// LED Control PWB (Y71) (2.3.4) 0ZZ40365404// Stack Full Sensor (2.3.4) 0ZZ40860601// Toner Sensor 0ZZ40866102// Control Panel Assy (2.3.4) 2381003P0014 Control Panel Tape Harness (2.3.4)

0ZZ41409601//

LED Harness K (2.3.4)

0ZZ41309602//

LED Harness Y (2.3.4)

0ZZ41309603//

LED Harness M (2.3.4)

0ZZ41309604//

LED Harness C (2.3.4) 0ZZ40861501// Eject Guide Assy (2.3.6)

PCB Assy_TIG

Board Memory 64MB

Board CRF

⋅

0ZZ40861201// Top Cover Handle (2.3.5) 0ZZ40861301// Top Cover Latch (2.3.5) 0ZZ40861401// Top Cover Latch Spring (2.3.5)

⋅

26 /

2.3.1 Top Cover

(1) Open the Top Cover assy. (2) Remove the nine screws 1 to detach the top cover 2.

Figure 2-3-1 Top Cover

27/

2.3.2 LED Head / LED Spring / Post-Guide

(1) Open the top cover 1. (2) Remove the three cables, and unhook the LED Head 2 at two places to demount it (the two

springs 3, Post-Guide 4 become detached together with the LED Head 2).

Figure 2-3-2 LED Head / LED Spring / Post-Guide

28 /

2.3.3 Top Cover Unit

(1) Remove the top cover (see section 2.3.1). (2) Remove the rear cover (see section 2.3.10). (3) Remove the left side cover (see section 2.3.12). (4) Remove the right side cover (see section 2.3.13). (5) Remove the shield plates A and B (see section 2.3.23), and unplug the connector to separate

the top cover.

(6) Disengage the top cover unit 1 at two places to detach it.

Figure 2-3-3 Top Cover Unit

29 /

2.3.4 Control Panel Assy/ Control Panel Bezel/ LED Control PWB/ Toner Sensors/ Stacker Full Sensor/ Control Panel/ Control Panel Tape Harness/ Eject Rollers

(1) Remove the control panel Assy 1. (2) Detach the control panel tape harness 2. (3) Remove the top cover unit (see section 2.3.3). (4) Unscrew the six screws 3 to remove the earth plate 4. (5) Remove the two screws 5, unhook all the connectors 6 and demount the LED control PWB 7. (6) Disengage the four claws to demount the toner sensor 8. (7) Demount the stacker full sensor 9. (8) Demount the exit rollers A. (9) Detach the LED harnesses, K, Y, M and C B. (10) Detach the top cover inner frame Assy C.

Figure 2-3-4 Control Panel Assy/ Control Panel Bezel/ LED Control PWB/ Toner Sensors/ Stacker

Full Sensor/ Control Panel/ Control Panel Tape Harness/ Eject Rollers

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