Ricoh JP 1235, JP 3000 Service Manual
C231/C237/C238/C248/C267
SERVICE MANUAL
000914MIU
SERVICE MANUAL
C231/C237/C238/C248/C267
C231/C237/C238/C248/C267
SERVICE MANUAL
000914MIU
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interest of Ricoh Corporation and its member companies.
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any trade name, or web site is intended to convey endorsement or other
affiliation with Ricoh products.
© 2006 RICOH Corporation. All rights reserved.
WARNING
The Service Manual contains information
regarding service techniques, procedures,
processes and spare parts of office equipment
distributed by Ricoh Corporation. Users of this
manual should be either service trained or
certified by successfully completing a Ricoh
Technical Training Program.
Untrained and uncertified users utilizing
information contained in this service manual to
repair or modify Ricoh equipment risk personal
injury, damage to property or loss of warranty
protection.
Ricoh Corporation
LEGEND
PRODUCT CODE COMPANY
C231 5306L JP1030 3150DNP
C237 5308L LDD020 JP1230 3150eDNP
C238 5430 LDD030 JP3000 3260DNP
C248 5309L JP1235 3160DNP
C267 CP6143L LDD120 DX3340 3180DNP
GESTETNER LANIER RICOH SAVIN
DOCUMENTATION HISTORY
REV. NO. DATE COMMENTS
*
1 8/2000 C237 Addition
2 1/2002 C238 Addition
3 2/2003 C248 Addition
4 6/2006 C267 Addition
7/98 Original Printing
Rev. 08/2001
C231
TABLE OF CONTENTS
OVERALL INFORMATION
OVERALL INFORMATION ............................................................... 1-1
1.1 SPECIFICATION ....................................................................................... 1-1
1.2 GUIDE TO COMPONENTS AND THEIR FUNCTION...............................1-5
1.2.1 MACHINE EXTERIOR......................................................................1-5
1.2.2 MACHINE INTERIOR .......................................................................1-6
1.2.3 OPERATION PANEL........................................................................1-7
Keys......................................................................................................1-7
Indicators .............................................................................................. 1-9
1.3 PRINTING PROCESS.............................................................................1-10
1.4 MECHANICAL COMPONENT LAYOUT .................................................1-11
1.5 ELECTRICAL COMPONENT LAYOUT...................................................1-12
1.5.1 ADF ................................................................................................1-12
1.5.2 MAIN BODY ...................................................................................1-13
Boards ................................................................................................1-14
Motors.................................................................................................1-14
Solenoids ............................................................................................1-15
Switches .............................................................................................1-15
Sensors...............................................................................................1-15
Counters .............................................................................................1-16
Others ................................................................................................. 1-16
1.6 DRIVE LAYOUT ......................................................................................1-17
DETAILED DESCRIPTIONS
DETAILED SECTION DESCRIPTIONS ............................................ 2-1
2.1 SCANNER AND OPTICS ..........................................................................2-1
2.1.1 BOOK SCANNER OVERVIEW ........................................................2-1
2.1.2 ADF OVERVIEW ..............................................................................2-2
2.1.3 CONTACT IMAGE SENSOR............................................................2-4
2.1.4 DRIVE MECHANISM........................................................................2-5
Book Scanner .......................................................................................2-5
ADF.......................................................................................................2-6
2.1.5 PICK-UP AND FEED (ADF) .............................................................2-7
2.1.6 SEPARATION MECHANISM (ADF) .................................................2-8
2.1.7 ERROR CONDITIONS ..................................................................... 2-9
Book Scanner .......................................................................................2-9
ADF.......................................................................................................2-9
2.2 IMAGE-PROCESSING............................................................................2-10
2.2.1 OVERVIEW ....................................................................................2-10
2.2.2 A/D CONVERSION PROCESSING................................................2-11
Shading Distortion Correction .............................................................2-11
SM C231/C237/C238/C248/C267
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Original Background Correction..........................................................2-12
Peak Hold ...........................................................................................2-12
2.2.3 BINARY PROCESSING .................................................................2-13
Data Compensation Processing .........................................................2-13
MTF Correction...................................................................................2-14
Binary Processing in Letter/Photo Mode.............................................2-14
Error Diffusion.....................................................................................2-15
2.2.4 MAIN SCAN MAGNIFICATION ......................................................2-16
2.2.5 IMAGE POSITION ADJUSTMENT IN THE MAIN
SCAN DIRECTION.........................................................................2-17
2.2.6 PASTE SHADOW ERASE MODE..................................................2-17
2.2.7 THERMAL HEAD............................................................................2-18
Specifications......................................................................................2-18
Thermal Head Control.........................................................................2-18
Thermal Head Protection ....................................................................2-18
Remarks for Handling the Thermal Head............................................2-19
2.3 MASTER EJECT ..................................................................................... 2-20
2.3.1 OVERALL .......................................................................................2-20
2.3.2 MASTER CLAMPER OPEN MECHANISM ....................................2-21
Drum Position Lock Mechanism .........................................................2-21
2.3.3 MASTER EJECT ROLLER MECHANISM ...................................... 2-22
2.3.4 PRESSURE PLATE MECHANISM.................................................2-23
2.4 MASTER FEED ....................................................................................... 2-24
2.4.1 OVERALL .......................................................................................2-24
2.4.2 MASTER FEED MECHANISM .......................................................2-25
2.4.3 MASTER CLAMPER OPERATION AND TENSION ROLLER
RELEASE MECHANISM ................................................................2-26
2.4.4 CUTTER MECHANISM ..................................................................2-27
2.5 DRUM...................................................................................................... 2-28
2.5.1 OVERALL .......................................................................................2-28
2.5.2 DRUM DRIVE MECHANISM ..........................................................2-29
2.5.3 INK SUPPLY MECHANISM............................................................2-30
2.5.4 INK ROLLER MECHANISM ...........................................................2-31
2.5.5 INK SUPPLY CONTROL ................................................................2-32
2.5.6 DETECTION OF MASTERS ON THE DRUM ................................2-33
2.6 PAPER FEED..........................................................................................2-34
2.6.1 OVERALL .......................................................................................2-34
2.6.2 PAPER FEED MECHANISM ..........................................................2-35
2.6.3 PAPER FEED/SEPARATION PRESSURE ADJUSTMENT
MECHANISM .................................................................................2-36
2.6.4 REGISTRATION ROLLER MECHANISM.......................................2-37
Registration Roller Drive .....................................................................2-37
Registration Roller Up/Down Mechanism ...........................................2-38
2.6.5 PRINTING PRESSURE MECHANISM ........................................... 2-39
2.6.6 PAPER TABLE MECHANISM ........................................................2-40
Table Up and Down Mechanism.........................................................2-40
Paper End Detection Mechanism .......................................................2-40
Paper Table Side Fence Mechanism..................................................2-41
Paper Table Side-to-Side Shift Mechanism ........................................2-41
C231/C237/C238/C248/C267 SM
ii
Side Fence Friction Pads....................................................................2-42
2.7 PAPER DELIVERY..................................................................................2-43
2.7.1 OVERALL .......................................................................................2-43
2.7.2 PAPER DELIVERY UNIT DRIVE MECHANISM............................. 2-44
2.7.3 PAPER SEPARATION FROM DRUM ............................................2-45
2.7.4 EXIT PAWL DRIVE MECHANISM..................................................2-46
2.8 ERROR DETECTION..............................................................................2-47
2.8.1 ORIGINAL JAM DETECTION.........................................................2-47
2.8.2 MASTER EJECT JAM DETECTION...............................................2-47
2.8.3 MASTER FEED JAM DETECTION ................................................2-48
2.8.4 PAPER FEED JAM DETECTION ...................................................2-49
INSTALLATION
INSTALLATION................................................................................. 3-1
3.1 INSTALLATION REQUIREMENTS ...........................................................3-1
3.1.1 OPTIMUM ENVIRONMENTAL CONDITION....................................3-1
3.1.2 ENVIRONMENTS TO AVOID...........................................................3-1
3.1.3 POWER CONNECTION ...................................................................3-1
3.1.4 ACCESS TO MACHINE ...................................................................3-2
3.2 INSTALLATION PROCEDURE .................................................................3-3
3.2.1 MAIN BODY .....................................................................................3-3
Accessory Check ..................................................................................3-3
Installation Procedure ........................................................................... 3-4
3.2.2 AUTO DOCUMENT FEEDER (OPTION) .........................................3-9
Accessory Check ..................................................................................3-9
Installation Procedure .........................................................................3-10
3.2.3 TAPE MARKER (OPTION).............................................................3-14
Accessory Check ................................................................................3-14
Installation Procedure - For C231 -.....................................................3-15
3.2.4 COLOR DRUM (OPTION) ..............................................................3-17
3.2.5 INTERFACE BOARD (OPTION) ....................................................3-18
Accessory Check ................................................................................3-18
Installation Procedure .........................................................................3-18
SERVICE TABLES
SERVICE TABLES............................................................................ 4-1
4.1 SERVICE REMARKS ................................................................................4-1
4.1.1 MASTER FEED SECTION ............................................................... 4-1
1. Thermal Head Installation .................................................................4-1
2. Thermal Head Voltage Adjustment ...................................................4-1
4.1.2 PAPER FEED SECTION ..................................................................4-1
1. Friction Pad.......................................................................................4-1
2. Paper Feed Roller and Paper Separation Roller............................... 4-1
3. Paper Guide Plate Position for Registration Roller ...........................4-1
4.1.3 DRUM AND DRUM DRIVE SECTION..............................................4-2
SM C231/C237/C238/C248/C267
iii
1. Main Motor........................................................................................4-2
2. Doctor Roller.....................................................................................4-2
3. Drum Master Clamper.......................................................................4-2
4. Ink Roller Unit ...................................................................................4-2
5. Ink Pump...........................................................................................4-2
4.1.4 PAPER DELIVERY SECTION..........................................................4-3
1. Exit Pawl ...........................................................................................4-3
4.1.5 ELECTRICAL COMPONENTS.........................................................4-3
1. Main Processing Unit (MPU) 1..........................................................4-3
2. Main Processing Unit (MPU) 2..........................................................4-3
3. Power Supply Unit ............................................................................4-3
4. Sensor Adjustments..........................................................................4-3
4.2 DIP SW, LED, VR, TP, AND FUSE TABLES.............................................4-4
4.2.1 TEST POINTS ..................................................................................4-4
MPU......................................................................................................4-4
4.2.2 POTENTIOMETERS ........................................................................4-4
MPU......................................................................................................4-4
Power Supply Unit ................................................................................4-4
4.2.3 LED'S ...............................................................................................4-4
4.2.4 FUSES..............................................................................................4-5
MPU......................................................................................................4-5
PSU ......................................................................................................4-5
4.3 SERVICE CALL CODES ...........................................................................4-6
4.4 SERVICE PROGRAM MODE....................................................................4-8
4.4.1 ACCESS PROCEDURE ...................................................................4-8
Service Program Mode Access Procedure (For Engineers) .................4-8
Service Program Mode Access Procedure (For Users) ........................4-9
Change Adjustment Values or Modes.................................................4-10
4.4.2 SERVICE PROGRAM TABLE ........................................................4-11
Remarks .............................................................................................4-20
4.4.3 INPUT/OUTPUT CHECK MODE....................................................4-23
Input/Output Check Mode Access Procedure .....................................4-23
Input Check Table............................................................................... 4-24
Output Check Table............................................................................4-26
4.5 TEST PATTERN IMAGE MODE .............................................................4-28
4.6 USER CODE MODE ...............................................................................4-29
4.7 ROM HISTORY ....................................................................................... 4-31
4.7.1 C231 FIRMWARE MODIFICATION HISTORY................................4-31
PREVENTIVE MAINTENANCE
PREVENTIVE MAINTENANCE......................................................... 5-1
5.1 MAINTENANCE TABLE ............................................................................5-1
REPLACEMENT AND ADJUSTMENT
REPLACEMENT AND ADJUSTMENT ............................................. 6-1
C231/C237/C238/C248/C267 SM
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6.1 EXTERIOR COVER REMOVAL ................................................................ 6-1
6.1.1 ADF ..................................................................................................6-1
6.1.2 OPERATION PANEL........................................................................6-2
6.1.3 PLATEN COVER AND UPPER COVERS ........................................6-3
6.1.4 TOP COVER AND EXPOSURE GLASS ..........................................6-3
6.1.5 OTHER COVERS.............................................................................6-4
6.2 COPY IMAGE ADJUSTMENT...................................................................6-6
6.2.1 LEADING EDGE REGISTRATION ADJUSTMENT..........................6-6
6.2.2 SIDE-TO-SIDE REGISTRAION ADJUSTMENT...............................6-7
6.2.3 VERTICAL MAGNIFICATION ADJUSTMENT..................................6-8
6.2.4 LEADING EDGE BLANK MARGIN ADJUSTMENT..........................6-9
6.3 MPU REPLACEMENT............................................................................. 6-10
6.4 ORIGINAL FEED SECTION....................................................................6-11
6.4.1 ADF ROLLER ASSSEMBLY ..........................................................6-11
6.4.2 PICK-UP ROLLER..........................................................................6-11
6.4.3 FEED ROLLER...............................................................................6-12
6.4.4 SEPARATION ROLLER ................................................................. 6-12
6.4.5 ADF MOTOR AND COVERS .........................................................6-13
6.4.6 R0 AND R1 ROLLERS ...................................................................6-13
6.4.7 R2 ROLLER....................................................................................6-14
6.4.8 DOCUMENT SENSOR...................................................................6-15
6.4.9 SCAN LINE SENSOR.....................................................................6-15
6.4.10 COVER SENSORS ......................................................................6-16
6.5 MASTER FEED SECTION ......................................................................6-17
6.5.1 MASTER MAKING UNIT REMOVAL..............................................6-17
6.5.2 THERMAL HEAD REMOVAL .........................................................6-19
Remarks for thermal head installation.................................................6-20
6.5.3 THERMAL HEAD VOLTAGE ADJUSTMENT................................. 6-21
6.5.4 MASTER END SENSOR ADJUSTMENT .......................................6-23
6.6 MASTER EJECT SECTION ....................................................................6-24
6.6.1 MASTER EJECT UNIT REMOVAL.................................................6-24
6.7 PAPER FEED SECTION.........................................................................6-25
6.7.1 PAPER FEED ROLLER, PICK-UP ROLLER,
AND FRICTION PAD.....................................................................6-25
6.7.2 PAPER SEPARATION PRESSURE ADJUSTMENT......................6-26
6.7.3 PAPER FEED PRESSURE ADJUSTMENT ................................... 6-27
6.7.4 REGISTRATION ROLLER CLEARANCE ADJUSTMENT..............6-28
6.8 PRINTING SECTION ..............................................................................6-29
6.8.1 PRESS ROLLER REMOVAL.......................................................... 6-29
6.8.2 PRESS ROLLER LOCK LEVER ADJUSTMENT............................ 6-30
6.8.3 PRINTING PRESSURE ADJUSTMENT.........................................6-32
6.9 DRUM AND DRIVE SECTION ................................................................6-33
6.9.1 DRUM CLOTH SCREEN REMOVAL .............................................6-33
Remarks for the cloth screen installation ............................................6-34
6.9.2 DRUM MASTER CLAMPER AND METAL SCREEN REMOVAL ... 6-36
Remarks for drum screen installation..................................................6-38
6.9.3 INK ROLLER UNIT REMOVAL ......................................................6-39
6.9.4 DOCTOR ROLLER GAP ADJUSTMENT ....................................... 6-41
6.9.5 INK DETECTION ADJUSTMENT...................................................6-43
SM C231/C237/C238/C248/C267
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6.9.6 INK PUMP REMOVAL AND PLUNGER
POSITION ADJUSTMENT .............................................................6-44
6.9.7 MAIN DRIVE TIMING BELT TENSION ADJUSTMENT .................6-46
6.9.8 MAIN MOTOR PULLEY POSITION ADJUSTMENT.......................6-48
6.10 PAPER DELIVERY SECTION...............................................................6-49
6.10.1 VACUUM UNIT REMOVAL ..........................................................6-49
6.10.2 DELIVERY BELT/PAPER EXIT SENSOR REMOVAL .................6-50
6.10.3 VACUUM MOTOR REMOVAL .....................................................6-51
6.10.4 EXIT PAWL CLEARANCE ADJUSTMENT...................................6-52
6.10.5 EXIT PAWL DRIVE TIMING ADJUSTMENT ................................6-53
TAPE MARKER C532
SPECIFICATIONS............................................................................. 7-1
BASIC OPERATION ......................................................................... 7-2
2.1 OVERVIEW ...............................................................................................7-2
2.2 DRIVE AND CUTTING MECHANISM .......................................................7-3
2.3 MANUAL CUT ...........................................................................................7-4
REPLACEMENT AND ADJUSTMENT ............................................. 7-5
3.1 CUTTER REPLACEMENT ........................................................................7-5
3.2 CUTTER HOME POSITION SENSOR REPLACEMENT ..........................7-6
3.3 TAPE CUT LENGTH ADJUSTMENT ........................................................7-7
PRIPORT CONTROLLER USER’S GUIDE 8-1
C231/C237/C238/C248/C267 SM
vi
Rev. 07/2001
C237
TABLE OF CONTENTS
1. OVERALL INFORMATION .......................................................... 1-1
1.1 ESSENTIAL DIFFERENCES BETWEEN THE C237 AND C231
MODELS ...................................................................................................1-1
1.2 SPECIFICATIONS.....................................................................................1-4
1.3 NEW ELECTRICAL COMPONENTS ........................................................1-5
1.3.1 MAIN BODY .....................................................................................1-5
1.3.2 TABLES OF ELECTRICAL COMPONENTS .................................... 1-5
Boards ..................................................................................................1-5
Switches ...............................................................................................1-5
2. DETAILED SECTION DESCRIPTIONS ....................................... 2-1
2.1 PAPER FEED............................................................................................2-1
2.1.1 PAPER FEED/SEPARATION PRESSURE ADJUSTMENT
MECHANISM ...................................................................................2-1
2.2 PAPER DELIVERY....................................................................................2-2
2.2.1 EXIT PAWL AIR PUMP MECHANISM (CHINESE MODEL ONLY)..2-2
3. INSTALLATION............................................................................ 3-1
4. SERVICE TABLES....................................................................... 4-1
4.1 SERVICE CALL CODES ...........................................................................4-1
4.2 SERVICE PROGRAM TABLE ...................................................................4-3
4.3 INPUT/OUTPUT CHECK MODE.............................................................4-12
Input Check Table............................................................................... 4-12
Output Check Table............................................................................4-14
4.4 ROM HISTORY ....................................................................................... 4-16
4.4.1 C237 FIRMWARE MODIFICATION HISTORY...............................4-16
5. PREVENTIVE MAINTENANCE.................................................... 5-1
6. REPLACEMENT AND ADJUSTMENT ........................................ 6-1
6.1 MASTER FEED SECTION ........................................................................6-1
6.1.1 MASTER END SENSOR ADJUSTMENT .........................................6-1
6.2 MASTER EJECT SECTION ......................................................................6-2
6.2.1 MASTER EJECT UNIT REMOVAL...................................................6-2
6.3 PAPER FEED SECTION...........................................................................6-2
6.3.1 PAPER SEPARATION PRESSURE ADJUSTMENT........................6-2
6.4 PAPER DELIVERY SECTION...................................................................6-3
6.4.1 AIR PUMP ADJUSTMENT (CHINESE MODEL ONLY)....................6-3
SM C231/C237/C238/C248/C267
vii
C238
TABLE OF CONTENTS
1. INSTALLATION............................................................................ 1-1
1.1 INSTALLATION REQUIREMENTS ...........................................................1-1
1.1.1 OPTIMUM ENVIRONMENTAL CONDITION....................................1-1
1.1.2 ENVIRONMENTS TO AVOID...........................................................1-1
1.1.3 POWER CONNECTION ...................................................................1-1
1.1.4 ACCESS TO THE MACHINE ...........................................................1-2
1.2 INSTALLATION PROCEDURE .................................................................1-3
1.2.1 MAIN BODY .....................................................................................1-3
Accessory Check ..................................................................................1-3
Installation Procedure ........................................................................... 1-4
1.2.2 PLATEN COVER INSTALLATION (OPTION) ..................................1-9
Accessory Check ..................................................................................1-9
Installation Procedure ........................................................................... 1-9
1.2.3 ADF INSTALLATION (OPTION).....................................................1-10
Accessory Check ................................................................................1-10
Installation Procedure .........................................................................1-11
ADF stabilizer installation....................................................................1-14
1.2.4 TAPE MARKER (OPTION).............................................................1-15
Accessory Check ................................................................................1-15
Installation Procedure .........................................................................1-16
- For C238 - ........................................................................................1-16
- For C231 and C237- .........................................................................1-17
- For C226 - ........................................................................................1-18
- For C210, C218, C219, C222, and C223 - .......................................1-19
- For C217 and C225 - ........................................................................ 1-20
- Common Steps -...............................................................................1-21
1.2.5 ADDITIONAL DRUMS (OPTION)...................................................1-22
1.2.6 INTERFACE BOARD (OPTION) ....................................................1-23
Accessory Check ................................................................................1-23
Installation Procedure .........................................................................1-23
2. PREVENTIVE MAINTENANCE.................................................... 2-1
2.1 MAINTENANCE TABLE ............................................................................2-1
3. REPLACEMENT AND ADJUSTMENT ........................................ 3-1
3.1 GENERAL CAUTION ................................................................................3-1
3.2 COVERS / BOARDS .................................................................................3-1
3.2.1 FRONT COVER / PANEL.................................................................3-1
3.2.2 REAR COVERS................................................................................3-2
3.2.3 MPU..................................................................................................3-2
3.2.4 PSU ..................................................................................................3-3
C231/C237/C238/C248/C267 SM
viii
3.3 SCANNER .................................................................................................3-4
3.3.1 EXPOSURE GLASS / SCALES........................................................3-4
3.3.2 SBU AND LAMP STABILIZER / SCANNER MOTOR.......................3-4
3.3.3 SCANNER H.P. SENSOR / PLATEN COVER SENSOR .................3-5
3.3.4 EXPOSURE LAMP (XENON LAMP) ................................................3-6
3.3.5 SCANNER WIRES ...........................................................................3-7
Installation.............................................................................................3-7
3.3.6 IMAGE ADJUSTMENT .....................................................................3-9
3.4 MASTER EJECT ..................................................................................... 3-10
3.4.1 MASTER EJECT UNIT ................................................................... 3-10
3.5 MASTER FEED ....................................................................................... 3-11
3.5.1 MASTER MAKING UNIT ................................................................ 3-11
3.5.2 THERMAL HEAD............................................................................3-11
Installation...........................................................................................3-12
3.5.3 THERMAL HEAD VOLTAGE ADJUSTMENT................................. 3-13
3.5.4 MASTER END SENSOR ADJUSTMENT .......................................3-14
3.6 PAPER FEED..........................................................................................3-15
3.6.1 PICK-UP ROLLER / PAPER FEED ROLLER / FRICTION PAD..... 3-15
3.6.2 PAPER SEPARATION PRESSURE ADJUSTMENT......................3-15
3.6.3 PAPER WIDTH DETECTION BOARD ...........................................3-16
3.7 PRINTING ...............................................................................................3-17
3.7.1 PRESS ROLLER ............................................................................3-17
3.7.2 PRESS ROLLER RELEASE LEVER ADJUSTMENT .....................3-18
3.7.3 PRINTING PRESSURE ADJUSTMENT.........................................3-19
3.8 DRUM...................................................................................................... 3-20
3.8.1 PREPARATION..............................................................................3-20
3.8.2 CLOTH SCREEN............................................................................3-20
Installation...........................................................................................3-21
3.8.3 CLAMPER / METAL SCREEN .......................................................3-22
Installation...........................................................................................3-23
3.8.4 INK PUMP ADJUSTMENT .............................................................3-24
3.8.5 INK ROLLER UNIT / INK ROLLER ONE-WAY CLUTCH ...............3-26
3.8.6 DOCTOR ROLLER GAP ADJUSTMENT ....................................... 3-27
3.8.7 INK DETECTION ADJUSTMENT...................................................3-28
3.8.8 MAIN MOTOR PULLEY POSITION................................................3-28
3.8.9 MAIN DRIVE TIMING BELT ADJUSTMENT ..................................3-28
3.9 PAPER DELIVERY..................................................................................3-29
3.9.1 PAPER DELIVERY UNIT ...............................................................3-29
3.9.2 DELIVERY BELT / PAPER EXIT SENSOR....................................3-29
3.9.3 EXIT PAWL ADJUSTMENT ...........................................................3-30
Clearance adjustment .........................................................................3-30
Timing adjustment...............................................................................3-31
3.9.4 AIR PUMP ADJUSTMENT .............................................................3-32
3.10 SPECIAL TOOLS .................................................................................. 3-33
SM C231/C237/C238/C248/C267
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Rev. 05/2003
4. TROUBLESHOOTING ................................................................. 4-1
4.1 ERROR CODES........................................................................................4-1
4.2 ELECTRICAL COMPONENT DEFECTS ..................................................4-3
4.2.1 SENSORS ........................................................................................4-3
4.2.2 SWITCHES.......................................................................................4-4
4.2.3 LINES ...............................................................................................4-5
4.3 FUSE, LED, VR, DIP-SW, AND TP TABLES ............................................4-6
4.3.1 BLOWN FUSE CONDITIONS ..........................................................4-6
4.3.2 LED’S.............................................................................................4-6
4.3.3 VR’S...............................................................................................4-6
4.3.4 DIP SWITCHES................................................................................ 4-7
4.3.5 TEST POINTS ..................................................................................4-7
5. SERVICE TABLES....................................................................... 5-1
5.1 USING SERVICE PROGRAM MODES.....................................................5-1
5.1.1 ACCESSING SP MODES.................................................................5-1
Entering SP Mode................................................................................. 5-1
Leaving SP Mode .................................................................................5-1
5.1.2 HOW TO SELECT A PROGRAM NUMBER.....................................5-2
5.2 MAIN MENU NO.1: COPY DATA ..............................................................5-3
5.2.1 SP TABLE ........................................................................................5-3
5.2.2 SP1-70, 71: FIRMWARE/ROM SUFFIX INFORMATION .................5-4
5.2.3 SP1-80: ERROR CODE INFORMATION .........................................5-4
5.2.4 SP1-72: SERIAL NUMBER (SERVICE) SP1-75 (FACTORY) ..........5-5
5.3 MAIN MENU NO.2: BASIC SETTINGS .....................................................5-6
5.3.1 SP TABLE ........................................................................................5-6
5.3.2 SP2-41, 2-42: THERMAL HEAD ENERGY CONTROL....................5-6
5.3.3 SP2-24: SLOW STARTING MODE ..................................................5-6
5.3.4 SP2-33: RE-FEEDING......................................................................5-7
5.4 MAIN MENU NO.3: SYSTEM SETTINGS .................................................5-8
5.4.1 SP TABLE ........................................................................................5-8
5.4.2 SP3-1: INPUT THE PRESENT TIME ...............................................5-8
5.4.3 SP3-3: INPUT SERIAL NUMBER ON SP1-72 .................................5-9
5.5 MAIN MENU NO.4: INPUT MODE .......................................................... 5-10
5.5.1 SP TABLE ......................................................................................5-10
5.5.2 SP4-45: PAPER SIZE DISPLAY ....................................................5-10
5.6 MAIN MENU NO.5: OUTPUT MODE ......................................................5-11
5.6.1 SP TABLE ......................................................................................5-11
5.7 MAIN MENU NO.6: ADJUSTMENT.........................................................5-12
5.7.1 SP TABLE ......................................................................................5-12
5.7.2 SP6-40: INK DETECTION ADJUSTMENT .....................................5-12
5.7.3 IMAGE ADJUSTMENT (SP6-10, -21, -5, -3, AND -1).....................5-13
SP6-10: Master writing speed.............................................................5-13
SP6-21: Paper registration position ....................................................5-13
SP6-05: Scanning speed - platen .......................................................5-14
SP6-06: Scanning speed - ADF..........................................................5-14
SP6-03: Scanning start position - platen.............................................5-14
SP6-04: Scanning start position - ADF ...............................................5-14
SP6-01: Main scan position - platen ...................................................5-14
C231/C237/C238/C248/C267 SM
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Rev. 01/2006
SP6-02: Main scan position - ADF......................................................5-14
5.7.4 SP6-31: SBU CALIBRATION .........................................................5-15
5.7.5 SP6-20: REGISTRATION BUCKLE (NOT USED).......................... 5-15
5.7.6 SP6-23: PAPER REGISTRATION – EACH SPEED....................... 5-16
5.7.7 SP6-27: PRESS ROLLER BUCKLE...............................................5-18
5.7.8 SP6-26 AND 37: MASTER LENGTH A3/A4 ...................................5-19
5.7.9 SP6-33 AND 34: PPR REG (EACH SPEED FORWARD & BACKWARD).5-20
5.8 MAIN MENU NO.7: MEMORY CLEAR....................................................5-23
5.8.1 SP TABLE ......................................................................................5-23
5.8.2 SP7: HOW TO CLEAR ................................................................... 5-23
5.8.3 SP7-1: FACTORY SETTINGS CLEAR...........................................5-23
5.9 MAIN MENU NO.8: SYSTEM TEST........................................................5-24
5.9.1 SP TABLE ......................................................................................5-24
5.9.2 SP8-1: DOWNLOAD MAIN FIRMWARE ........................................5-24
5.9.3 SP8-2: UPLOAD MAIN FIRMWARE...............................................5-25
5.9.4 SP8-10: TEST PATTERNS ............................................................5-25
5.9.5 SP8-21: PAPER FEED TEST (15 RPM).........................................5-25
5.9.6 SP8-22: FREE RUN PAPER FEED (15 RPM) ...............................5-25
6. DETAILED SECTION DESCRIPTIONS ....................................... 6-1
6.1 MECHANISM OVERVIEW ........................................................................6-1
6.1.1 MAJOR PARTS ................................................................................6-1
6.1.2 ELECTRICAL COMPONENT LAYOUT ............................................6-2
Boards ..................................................................................................6-3
Motors...................................................................................................6-3
Switches ...............................................................................................6-4
Sensors.................................................................................................6-4
Solenoids ..............................................................................................6-5
Counters ...............................................................................................6-5
Others ................................................................................................... 6-5
6.1.3 DRIVE LAYOUT ...............................................................................6-6
6.2 MASTER EJECT UNIT..............................................................................6-7
6.2.1 OVERVIEW ......................................................................................6-7
Overview...............................................................................................6-7
Procedure .............................................................................................6-7
6.2.2 MASTER CLAMPER OPENING MECHANISM ................................6-8
Clamper Mechanism .............................................................................6-8
Notes ....................................................................................................6-8
6.2.3 MASTER EJECT ROLLER MECHANISM ........................................6-9
Mechanism ...........................................................................................6-9
Procedure .............................................................................................6-9
6.2.4 PRESSURE PLATE MECHANISM.................................................6-10
Mechanism .........................................................................................6-10
Procedure ...........................................................................................6-10
6.3 SCANNER UNIT......................................................................................6-11
6.3.1 OVERVIEW ....................................................................................6-11
6.3.2 SCANNER DRIVE ..........................................................................6-12
Full size mode.....................................................................................6-12
Reduction/enlargement modes ...........................................................6-12
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Rev. 01/2006
6.4 IMAGE PROCESSING ............................................................................6-13
6.4.1 OVERVIEW ....................................................................................6-13
6.4.2 AUTO BACKGROUND CORRECTION ..........................................6-14
6.4.3 AUTO SHADING ............................................................................6-14
6.4.4 MTF FILTER...................................................................................6-14
6.4.5 MAIN SCAN ENLARGEMENT/REDUCTION .................................6-14
6.4.6 BINARY PROCESSING .................................................................6-15
6.4.7 FINE MODE....................................................................................6-15
6.4.8 THERMAL HEAD............................................................................6-16
Specifications......................................................................................6-16
Thermal head control .......................................................................... 6-16
Thermal head protection .....................................................................6-16
Remarks for Handling the Thermal Head............................................6-17
6.5 MASTER FEED ....................................................................................... 6-18
6.5.1 OVERVIEW ....................................................................................6-18
Procedure ...........................................................................................6-18
6.5.2 MASTER FEED MECHANISM .......................................................6-19
Mechanism .........................................................................................6-19
Procedure ...........................................................................................6-19
Notes ..................................................................................................6-19
6.5.3 CLAMPER AND TENSION ROLLER MECHANISM.......................6-20
Mechanism .........................................................................................6-20
Notes ..................................................................................................6-20
6.5.4 CUTTER MECHANISM ..................................................................6-21
6.5.5 MASTER SET COVER SENSOR...................................................6-21
6.6 DRUM...................................................................................................... 6-22
6.6.1 OVERVIEW ....................................................................................6-22
Procedure ...........................................................................................6-22
Notes ..................................................................................................6-22
6.6.2 DRUM DRIVE MECHANISM ..........................................................6-23
Mechanism .........................................................................................6-23
Notes ..................................................................................................6-23
6.6.3 INK SUPPLY MECHANISM............................................................6-24
Mechanism .........................................................................................6-24
Notes ..................................................................................................6-24
6.6.4 INK ROLLER MECHANISM ...........................................................6-25
Mechanism .........................................................................................6-25
Notes ..................................................................................................6-25
6.6.5 INK SUPPLY CONTROL ................................................................6-26
Mechanism .........................................................................................6-26
Notes ..................................................................................................6-26
6.6.6 DETECTION OF MASTERS ON THE DRUM ................................6-27
6.7 PAPER FEED..........................................................................................6-28
6.7.1 OVERVIEW ....................................................................................6-28
6.7.2 PAPER FEED MECHANISM ..........................................................6-29
Mechanism .........................................................................................6-29
Notes ..................................................................................................6-29
6.7.3 PAPER FEED / SEPARATION PRESSURE MECHANISM ...........6-30
6.7.4 REGISTRATION ROLLER MECHANISM.......................................6-31
C231/C237/C238/C248/C267 SM
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Rev. 01/2006
Registration Roller Drive .....................................................................6-31
Registration Roller Up/Down Mechanism ...........................................6-31
6.7.5 PRINTING PRESSURE MECHANISM ........................................... 6-32
6.7.6 RE-FEEDING MECHANISM...........................................................6-32
6.7.7 PAPER TABLE MECHANISM ........................................................6-33
Table lifting/lowering ...........................................................................6-33
Mechanism .........................................................................................6-33
Notes ..................................................................................................6-33
Paper end detection............................................................................6-33
Paper size detection ...........................................................................6-33
Table side fences and side-to-side shift..............................................6-34
Side fence friction pads.......................................................................6-34
6.8 PAPER DELIVERY..................................................................................6-35
6.8.1 OVERVIEW ....................................................................................6-35
6.8.2 PAPER DELIVERY UNIT DRIVE MECHANISM............................. 6-35
Mechanism .........................................................................................6-35
Notes ..................................................................................................6-35
6.8.3 PAPER SEPARATION FROM THE DRUM ....................................6-36
Air knife...............................................................................................6-36
Exit pawl air pump...............................................................................6-36
6.8.4 EXIT PAWL DRIVE MECHANISM..................................................6-37
6.9 TIMING CHART.......................................................................................6-38
6.9.1 MASTER EJECT / MASTER FEED................................................6-38
6.9.2 MASTER WRAPPING .................................................................... 6-40
6.9.3 PRINTING ......................................................................................6-42
6.10 JAM DETECTION..................................................................................6-44
6.10.1 MASTER EJECT JAM (E JAM LOCATION INDICATOR) ............6-44
Picking up the used master from the drum .........................................6-44
Compressing the used master ............................................................6-44
Just after turning on the main switch...................................................6-44
6.10.2 DF JAM (P JAM LOCATION INDICATOR)...................................6-45
Feeding in the original.........................................................................6-45
Feeding out the original ......................................................................6-45
Turning on the main switch/closing the DF cover ...............................6-45
6.10.3 MASTER FEED JAM (D JAM LOCATION INDICATOR).............. 6-46
Cutting the master (master not cut).....................................................6-46
Cutting the master (cutter unit problem)..............................................6-46
Clamping the master...........................................................................6-47
6.10.4 DRUM JAM (B JAM LOCATION INDICATOR).............................6-47
Wrapping jam...................................................................................... 6-47
Changed “B jam” indicator .................................................................. 6-47
6.10.5 PAPER FEED JAM (A JAM LOCATION INDICATOR).................6-49
Paper feed ..........................................................................................6-49
Turning on the main switch/end of paper feed .................................... 6-49
6.10.6 PAPER DELIVERY JAM (C JAM LOCATION INDICATOR).........6-49
Paper delivery.....................................................................................6-49
SPECIFICATIONS............................................................................. 7-1
1. GENERAL SPECIFICATIONS.....................................................................7-1
SM C231/C237/C238/C248/C267
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DOCUMENT FEEDER C600
1. OVERALL INFORMATION .......................................................... 8-1
1.1 SPECIFICATIONS.....................................................................................8-1
1.2 MECHANICAL COMPONENT LAYOUT ...................................................8-2
1.3 ELECTRICAL COMPONENT LAYOUT.....................................................8-3
1.4 ELECTRICAL COMPONENT DESCRIPTION........................................... 8-4
1.5 DRIVE LAYOUT ........................................................................................8-5
2. DETAILED SECTION DESCRIPTIONS ....................................... 8-6
2.1 ORIGINAL SIZE DETECTION...................................................................8-6
2.2 PICK-UP AND SEPARATION ...................................................................8-8
2.3 ORIGINAL TRANSPORT AND EXIT MECHANISM ..................................8-9
2.4 OVERALL ELECTRICAL CIRCUIT .........................................................8-10
3. REPLACEMENT AND ADJUSTMENT ...................................... 8-11
3.1 FEED UNIT REMOVAL ...........................................................................8-11
3.2 SEPARATION ROLLER REPLACEMENT ..............................................8-11
3.3 PICK-UP ROLLER REPLACEMENT.......................................................8-12
3.4 FEED BELT REPLACEMENT .................................................................8-12
3.5 ORIGINAL SET SENSOR REPLACEMENT............................................8-13
3.6 ORIGINAL SIZE SENSORS REPLACEMENT ........................................8-14
3.7 ORIGINAL EXIT TRAY/FRONT COVER/REAR COVER
REMOVAL ...............................................................................................8-15
3.8 FEED COVER OPEN SENSOR/DF OPEN SENSOR
REPLACEMENT...................................................................................... 8-15
3.9 FEED CLUTCH/PICK-UP SOL/TRANSPORT MOTOR
REPLACEMENT...................................................................................... 8-16
3.10 DF FEED COVER REMOVAL ...............................................................8-17
3.11 REGISTRATION SENSOR REPLACEMENT........................................8-17
C231/C237/C238/C248/C267 SM
xiv
Rev. 02/2005
C248
TABLE OF CONTENTS
1. ESSENTIAL DIFFERENCES BETWEEN THE C237 AND C248
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C267
TABLE OF CONTENTS
1. INSTALLATION............................................................................ 1-1
1.1 INSTALLATION REQUIREMENTS ...........................................................1-1
1.1.1 OPTIMUM ENVIRONMENTAL CONDITION....................................1-1
1.1.2 ENVIRONMENTS TO AVOID...........................................................1-1
1.1.3 POWER CONNECTION ...................................................................1-1
1.1.4 MINIMUM SPACE REQUIREMENTS...............................................1-2
1.1.5 DIMENSIONS...................................................................................1-2
1.1.6 MAIN BODY AND PERIPHERALS...................................................1-3
1.1.7 POWER SOCKETS FOR PERIPHERALS .......................................1-4
1.2 INSTALLATION PROCEDURE .................................................................1-5
1.2.1 MAIN BODY .....................................................................................1-5
Accessory Check ..................................................................................1-5
Installation Procedure ........................................................................... 1-6
Changing the operation panel language ............................................. 1-13
Date/Time Setting ...............................................................................1-13
SP Codes Setting ...............................................................................1-13
1.2.2 COLOR DRUM (OPTION) ..............................................................1-14
Accessory Check ................................................................................1-14
Installation Procedure .........................................................................1-14
1.2.3 ADF (OPTION) ...............................................................................1-15
Accessory Check ................................................................................1-15
Installation Procedure .........................................................................1-16
1.2.4 PLATEN COVER (OPTION)...........................................................1-18
Accessory Check ................................................................................1-18
Installation Procedure .........................................................................1-18
1.2.5 TAPE DISPENSER (OPTION) .......................................................1-19
Accessory Check ................................................................................1-19
Installation Procedure .........................................................................1-19
1.2.6 PRINTER UNIT VC-20 (OPTION) ..................................................1-23
Accessory Check ................................................................................1-23
Installation Procedure .........................................................................1-24
2. PREVENTIVE MAINTENANCE.................................................... 2-1
ADF.......................................................................................................2-2
3. REPLACEMENT AND ADJUSTMENT ........................................ 3-1
3.1 GENERAL CAUTION ................................................................................3-1
3.2 COVERS ...................................................................................................3-1
3.2.1 FRONT COVER / FRONT DOOR.....................................................3-1
3.2.2 OPERATION PANEL........................................................................3-2
3.2.3 REAR COVER..................................................................................3-2
3.2.4 UPPER COVERS .............................................................................3-3
3.3 BOARDS ...................................................................................................3-4
3.3.1 MPU..................................................................................................3-4
C231/C237/C238/C248/C267 SM
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3.3.2 PSU ..................................................................................................3-5
PSU board ............................................................................................3-5
PSU board with bracket ........................................................................ 3-5
3.4 SCANNER .................................................................................................3-6
3.4.1 EXPOSURE GLASS/DF EXPOSURE GLASS, SCALES .................3-6
Exposure Glass ....................................................................................3-6
DF Exposure Glass............................................................................... 3-6
3.4.2 LENS BLOCK ...................................................................................3-7
3.4.3 EXPOSURE LAMP, LAMP STABILIZER BOARD ............................3-8
3.4.4 SCANNER MOTOR..........................................................................3-9
3.4.5 SCANNER HOME POSITION SENSOR .......................................... 3-9
3.4.6 PLATEN COVER SENSOR............................................................3-10
3.4.7 ADJUSTING THE SCANNER POSITION.......................................3-11
Overview.............................................................................................3-11
Adjusting the Belt Contact Points for the First Scanner ......................3-12
Adjusting the Belt Contact Points for the Second Scanner ................. 3-13
3.5 MASTER FEED ....................................................................................... 3-15
3.5.1 MASTER MAKING UNIT ................................................................ 3-15
3.5.2 MASTER MAKING UNIT SET SWITCHES ....................................3-15
3.5.3 THERMAL HEAD............................................................................3-17
Installation...........................................................................................3-18
3.5.4 MASTER SET COVER SENSOR...................................................3-19
3.5.5 MASTER END SENSOR ................................................................3-19
3.5.6 CUTTER UNIT................................................................................ 3-20
3.5.7 THERMAL HEAD VOLTAGE ADJUSTMENT................................. 3-21
3.5.8 MASTER END SENSOR ADJUSTMENT .......................................3-22
3.6 MASTER EJECT ..................................................................................... 3-23
3.6.1 MASTER EJECT UNIT ................................................................... 3-23
3.6.2 MASTER EJECT ROLLERS...........................................................3-24
3.6.3 MASTER EJECT MOTOR / PRESSURE PLATE MOTOR.............3-24
3.6.4 DRUM MASTER SENSOR / MASTER EJECT SENSOR /
EJECT BOX SET SENSOR............................................................3-25
3.6.5 PRESSURE PLATE HP SENSOR / PRESSURE
PLATE LIMIT SENSOR .................................................................. 3-26
3.6.6 AIR KNIFE FAN MOTOR................................................................3-26
3.6.7 MASTER EJECT POSITION SENSOR ..........................................3-27
3.6.8 MASTER CLAMPER OPENING UNIT............................................3-27
3.7 PAPER FEED..........................................................................................3-28
3.7.1 PICK-UP ROLLER / PAPER FEED ROLLER / FRICTION PAD..... 3-28
3.7.2 PAPER TABLE LOWER LIMIT SENSOR.......................................3-29
3.7.3 PAPER HEIGHT SENSOR 1 / 2.....................................................3-30
3.7.4 PAPER END SENSOR...................................................................3-31
3.7.5 PAPER TABLE MOTOR.................................................................3-32
3.7.6 PAPER FEED CLUTCH .................................................................3-32
3.7.7 PAPER SEPARATION PRESSURE ADJUSTMENT......................3-33
3.8 PRINTING ...............................................................................................3-34
3.8.1 PRESS ROLLER ............................................................................3-34
3.8.2 REGISTRATION SENSOR.............................................................3-35
3.8.3 FEED START TIMING SENSOR.................................................... 3-35
SM C231/C237/C238/C248/C267
xvii
3.8.4 2ND FEED TIMING SENSOR ........................................................3-36
3.8.5 REGISTRATION MOTOR ..............................................................3-37
3.8.6 REGISTRATION ROLLER .............................................................3-38
3.8.7 PRESS ROLLER RELEASE SOLENOIDS.....................................3-40
3.8.8 PRESS ROLLER RELEASE LEVER ADJUSTMENT .....................3-41
3.8.9 PRINTING PRESSURE ADJUSTMENT.........................................3-42
3.9 DRUM...................................................................................................... 3-43
3.9.1 PREPARATION..............................................................................3-43
3.9.2 CLOTH SCREEN............................................................................3-43
Installation...........................................................................................3-44
3.9.3 CLAMPER / METAL SCREEN .......................................................3-46
Installation...........................................................................................3-47
3.9.4 INK PUMP UNIT.............................................................................3-48
3.9.5 INK ROLLER UNIT / INK ROLLER ONE-WAY CLUTCH ...............3-49
3.9.6 DOCTOR ROLLER GAP ADJUSTMENT ....................................... 3-51
3.9.7 INK DETECTION ADJUSTMENT...................................................3-52
Using an Oscilloscope ........................................................................3-52
Simple Method....................................................................................3-53
3.10 PAPER DELIVERY................................................................................3-54
3.10.1 PAPER DELIVERY UNIT .............................................................3-54
3.10.2 DELIVERY BELT / PAPER EXIT SENSOR / VACUUM
FAN MOTOR / PAPER DELIVERY UNIT BUSHINGS .................3-56
3.10.3 EXIT PAWL ADJUSTMENT .........................................................3-57
Clearance adjustment .........................................................................3-57
Timing adjustment...............................................................................3-58
3.11 MAIN DRIVE..........................................................................................3-60
3.11.1 MAIN MOTOR ..............................................................................3-60
3.11.2 MAIN DRIVE TIMING BELT ADJUSTMENT ................................3-63
3.11.3 MAIN MOTOR PULLEY POSITION..............................................3-64
3.12 FIRMWARE UPDATE (I/O ROM) ..........................................................3-65
3.13 SPECIAL TOOLS ............................................................................3-65
3.14 COLOR DRUM ......................................................................................3-66
3.14.1 INK PUMP ADJUSTMENT ...........................................................3-66
4. TROUBLESHOOTING ................................................................. 4-1
4.1 SERVICE CALL CODES ...........................................................................4-1
4.2 ELECTRICAL COMPONENT DEFECTS ..................................................4-3
4.2.1 DRUM...............................................................................................4-3
4.2.2 PAPER EJECT .................................................................................4-4
4.2.3 PAPER FEED...................................................................................4-4
4.2.4 MAIN DRIVE.....................................................................................4-4
4.2.5 SCANNER ........................................................................................4-4
4.2.6 MASTER EJECT ..............................................................................4-5
4.2.7 MASTER MAKING UNIT ..................................................................4-5
4.2.8 OTHER .............................................................................................4-6
4.3 DIP SW, LED, VR, TP, AND FUSE TABLES.............................................4-7
4.3.1 TEST POINTS ..................................................................................4-7
MPU......................................................................................................4-7
4.3.2 POTENTIOMETERS ........................................................................4-7
C231/C237/C238/C248/C267 SM
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