FujiFilm CR-IR341 User manual

FUJI COMPUTED RADIOGRAPHY
Service Manual
CR-IR341 (FCR 5000)
CR-IR341P (FCR 5000plus)
Printed in Japan
Document No.009-051-07
1 st Edition - June 20, 1998
Revised Edition - Aug. 30, 2001
Fuji Photo Film Co., Ltd.

All rights reserved. No part of this publication may be reproduced, stored
in a retrieval system, or transmitted in any form or by means, electronic,
mechanical, photocopying, recording or otherwise, without the prior written
permission of Fuji Photo Film Co., Ltd. Miyanodai Technology Development
Center.
FCR®is a registered trademark of Fuji Photo Film Co., Ltd.
<No part of this manual may be reproduced or transmitted.>
Copyright©1998-2001 by Fuji Photo Film Co., Ltd.
The relationship between mR (milliroentgen), which is the unit of radiation,
and µC/kg (micro-coulomb/kilogram), which is the SI derived unit of radiation,
is as follows.
1 mR = 0.258 µC/kg
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Getting Started
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Getting Started
■Scope
This Service Manual is applicable to Fuji Computed Radiography CR-IR341 and CR-IR341P.
The machine is categorized as Class 1 according to IEC classification.
For the console (hereinafter abbreviated as CSL), reference should be made to the Service
Manual for ID-T741 or CR-IR348CL.
◆ NOTES ◆
• Differences between the CR-IR341 and CR-IR341P are as follows.
The CR-IR341 may be connected to the ID-T741.
The CR-IR341P may be connected to the CR-IR348CL and ID-T741.
• Units with serial number #5001 or later are called “CR-IR341P”.
■Notational Conventions
In this manual, some conventions for unit symbols, cautions, warnings, etc.are followed to
provide a simple, easy-to-read layout.
●Notation of unit symbols
For notation of unit symbols, metric units set forth in the International Systems of Units (SI)
are used, as a rule. However, some metric units that are not allowed in the SI but are permit-
ted in the Measurement Law are used partially.
●Notation of cautions, warnings, etc.
The notation formats of “warning,”“caution,” “note,” “supplementary note,” and “reference” are
shown below.
WARNING
Used when physical injury or death may occur if the instruction is not observed.
CAUTION
Used when a minor physical injury may be incurred or the machine may suffer serious damage
if the instruction is not observed.
◆ NOTE ◆
Used when the machine may suffer damage, or any failure or malfunction may occur if the
instruction is not observed.
SUPPLEMENTARY NOTE
Used to supply information that is not related directly to the work flow but may be useful if known.
Used to indicate the section you should refer to.

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Getting Started
■Servicing Instruments andToolsThat Require Inspection/Calibration
The machine should be installed and serviced by use of servicing instruments and tools that
have been inspected and calibrated as appropriate.
If the machine were serviced using servicing instruments and tools that have not been
inspected and calibrated, proper performance of the machine could not be guaranteed.
Servicing instruments and tools that require inspection/calibration are as listed below.
Inspection/calibration procedures should be performed in accordance with the inspection/
calibration manuals described in the ECN Information.
●Instruments and tools that require inspection/calibration
Name Inspection Calibration Inspection/calibration manual No.
–
–
ECN No. FCR-A014
TR1H0001.EPS
–
❍
❍
❍
❍❍
–
❍
❍
Steel rule (150mm)
Steel rule (300mm)
Digital tester
Calipers
Push-pull gauge
❍(✻)
Dosimeter
✻: A block gauge for use in inspection requires calibration.

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Safety Precaution
Safety Precaution
Observe the following safety precautions to avoid possible hazards and accidents during
installation and servicing.
1. General Precautions
■Power Supply
• Be sure to turn OFF the power before servicing. If servicing is performed while the power
remains ON, you may experience electric shock, burn, or machine malfunction.Since
some parts are not fully discharged (such as the photomultiplier) or remain at high tem-
perature (such as the lamp) even after power OFF, exercise due care not to touch them.
If servicing procedures (such as voltage measurement) that cannot be performed under
power-OFF condition are to be performed, use due care to avoid electric shock and other
hazards, as instructed in this manual.
• To restart the machine, power it OFF and wait more than five seconds before powering it
ON again. If the machine is powered ON within five seconds, it may shut down due to
overcurrent/overvoltage protection.
■Check on Drive Mechanisms
For your safety, be sure to turn OFF the power before proceeding with inspection or adjust-
ment. If inspection or adjustment that cannot be performed under power-OFF condition is to
be made, use due care, as instructed in this manual.
■Heavy Objects
Get an assistant to help you during installation and removal of heavy objects. Also use
suitable gear or machinery when appropriate.
■Safety Devices
For safety devices, such as fuses, breakers, interlock switches, panels, and covers, their
safety features should always be enabled.Do not make any alternation or modification that
may impair their functionality.
■Fixing Adjustable Foot
As anti-vibration measures for the machine, fix its adjustable feet onto the floor in place.

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Safety Precaution
■Precautions for Optical Parts
Observe the following rules for all the optical parts.Otherwise, the image quality may be
degraded.
• Before removing the covers, be sure to turn OFF the high-voltage switch. If the
machine is powered ON with any of the covers removed, the photomultiplier will be
damaged.
• Never touch the surface of optical parts.
• Do not attempt to remove dust or soil with procedures other than those specified.
• Remove optical parts in a clean environment. When removing protective housings to
replace optical parts, use care to avoid saliva from spattering around. Accordingly, it is
desirable to wear a mask.
■Other General Precautions
General precautions to be observed when performing servicing procedures are described
below. Note that precautions for individual procedures are described for their respective
procedures and thus be observed accordingly.
• To avoid hazards and prevent damage to components, do not remove or install any
part while the machine is powered. When performing checks and adjustments under
the powered condition, exercise care against electric shock.
• To avoid hazards, do not put your hand on or into any rotating part. Also use care not
to get your hand, foot, hairs, or clothes entangled in the machine.
• Use care not to touch the erasure lamp by hand, because it remains at high tempera-
ture immediately after power is turned OFF.
• Since some components, such as the photomultiplier, are not sufficiently discharged
after power is turned OFF, exercise due care to avoid electric shock. (Do not touch any
exposed parts, such as connectors and terminals, by bare hand inadvertently.)
• When servicing any LD assembly and printed circuit board, be sure to wear an anti-
static wristband to ensure proper grounding. If not, static electricity built on the human
body may cause damage to electronic parts on the board.
• Keep clean the product labels, safety standards labels, product serial number indica-
tions, and so forth attached on the machine, and do not peel them or put another label
over them.
• Upon completion of the servicing procedures, put the protective housings, retaining
screws, and cover grounding back exactly where they were, and secure them in place.

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Safety Precaution
2. Safety Against Laser Radiation
As indicated by the Certification and Identification Label attached on the rear cover of the
machine for overseas use, the machine complies with the U.S.Federal Regulations concern-
ing laser safety.The image reader incorporates a laser with a maximum output of 60 mW
(Class 3B, semiconductor laser wavelength of 660 nm, red visible light), but you will not be
exposed to any hazard if you perform tasks as instructed in this manual.
■Precautions Against Laser Exposure
Observe the following rules to avoid laser exposure.
●Procedures that require precautions against laser exposure
When performing the following procedures, observe the instructions exactly as described in
this manual to avoid laser exposure.
• Remove and restore the scanning optics unit.
• Replace the semiconductor laser unit.
• Replace or clean subscanning unit parts.
After the procedures are completed, put the protective housings and retaining screws back
exactly in their original position to prevent leakage of a laser beam out of the machine.
●Preventive maintenance for keeping the machine in compliance
In order to keep the machine in compliance with laser safety standards, perform preventive
maintenance programs described in “Preventive Maintenance Volume” at intervals specified.
●Things that should not be done to avoid laser exposure
Observe the following rules during servicing to avoid laser exposure.
• Never attempt to perform procedures other than instructed in this manual because you
may be exposed to laser beam radiation.
• Do not reflect a laser beam by placing a mirror or the like in the laser beam path.
• Do not alter the light path of a laser beam.
• Do not replace optical parts while the laser is energized.
• Never attempt to make optical axis adjustment in the field. Although the semiconductor
laser beam is red visible light, field adjustment of the optical axis cannot be done.
■Labels and Protective Housings for Laser Safty
“Safety Labels page 0.36”
“Protective Housings Against Laser Exposure page 0.40”

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Contents Maintenance Machine Description
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CR-IR341 Service Manual – Contents
Maintenance (M)
Machine Description (MD)
1. Overall Configuration and Nomenclature of Machine ........................................... MD - 2
1.1 External View of Machine............................................................................... MD - 2
1.2 Configuration of Machine............................................................................... MD - 3
2. Features of Machine ................................................................................................... MD - 4
2.1 Features of Mechanical Mechanism................................................................ MD - 4
2.2 Image Network I/F Option................................................................................. MD - 5
3. New Parts with Better Serviceability .......................................................................... MD - 6
3.1 E-ringless Housing Employed .........................................................................MD - 6
3.2 Snap-fit Pinion Gears Employed ...................................................................... MD - 7
3.3 Simple Bearing Employed................................................................................ MD - 8
3.4 Tensioner Not Requiring Tension Adjustment ............................................ MD - 9
3.5 Sensor Not Requiring Adjustment of Its Mounting Position ..................... MD - 11
4. System Block Diagram .............................................................................................MD - 12
5. I/O Locations and Functional Descriptions ............................................................. MD - 14
5.1 I/O Location Diagram....................................................................................... MD - 14
5.2 I/O List (Sensor) ............................................................................................... MD - 15
5.2.1 Models of Sensors and Parts Codes................................................. MD - 15
5.2.2 Description of Sensor ON/OFF .........................................................MD - 16
5.2.3 Sensor Monitoring Screen Under Idle Condition............................MD - 16
5.3 I/O List (Actuator)............................................................................................MD - 17
6. IP Flow......................................................................................................................... MD - 18
6.1 Timing Chart..................................................................................................... MD - 18

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Contents Maintenance Machine Description
7. Descriptions of Operations ..................................................................................... MD - 20
7.1 Elevation Unit ................................................................................................. MD - 20
7.2 IP Removal Unit...............................................................................................MD - 21
7.3 Before-Side-Positioning Conveyor ...............................................................MD - 24
7.4 Side-Positioning Conveyor ........................................................................... MD - 26
7.5 Subscanning Unit .......................................................................................... MD - 29
7.6 After-Reading Conveyor.................................................................................MD - 31
7.7 Erasure Conveyor ...........................................................................................MD - 32
7.8 Electrical System Block Diagram ..................................................................MD - 34
7.9 Image Data Flow..............................................................................................MD - 35
7.10 Function of Each Board .................................................................................MD - 37
7.11 Power Supply ..................................................................................................MD - 45
7.12 Scanning Optics/Scanner Unit ......................................................................MD - 46
7.13 General Description of Scanning Optics System ........................................MD - 54
8. Mechanical Control Flows ........................................................................................MD - 56
1. How to Understand Control Flow ..................................................................MD - 56
2. Routine (Single-IP Conveyance)....................................................................MD - 57
2.1 Summary of Operation ...........................................................................MD - 57
2.2 Cassette IN ..............................................................................................MD - 59
2.3 Movement (Feed) of Elevation Unit .......................................................MD - 62
2.4 IP Feed .................................................................................................... MD - 67
2.5 Feed Conveyance (IP Length Measurement)................................................. MD - 71
2.6 Barcode Reading and Side-Positioning................................................MD - 74
2.7 Reading................................................................................................... MD - 82
2.8 Movement of Elevation Unit (Load).......................................................MD - 93
2.9 Erasure.....................................................................................................MD - 94
2.10 IP Load...................................................................................................... MD - 98
2.11 Cassette Ejection................................................................................... MD - 103
3. Machine Operation During Secondary Erasure .........................................MD - 104
3.1 Summary of Operation .........................................................................MD - 104
3.2 Side-Positioning (Secondary Erasure) .............................................. MD - 105
3.3 Reading (Secondary Erasure)..............................................................MD - 105
3.4 Erasure Conveyance ........................................................................... MD - 108

Contents Maintenance Machine Description
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4. Step Operation ..............................................................................................MD - 109
4.1 Summary of Operation .........................................................................MD - 109
4.2 Feed/Load Step Operation ...................................................................MD - 109
4.3 Side-Positioning Step Operation.........................................................MD - 116
5. Machine Operation During Conveyor Initialization....................................MD - 117
5.1 Summary of Operation .........................................................................MD - 117
5.2 Initialization Subscanning Grip Check ...............................................MD - 119
5.3 IP Search ...............................................................................................MD - 120
5.4 Processing of Feed/Load Conveyance IP...........................................MD - 135
5.5 Cassette Hold Release Operation Check............................................MD - 138
5.6 Processing of Before-Reading Standby IP.........................................MD - 140
5.7 Processing of Load Standby IP ...........................................................MD - 143
5.8 Processing of After-Reading Standby IP............................................MD - 144
5.9 Subscanning Grip HP Positioning ......................................................MD - 145
5.10 Empty Cassette Ejection ......................................................................MD - 151
5.11 Cassette Hold Release Operation .......................................................MD - 152
6. Error Handling...............................................................................................MD - 153
6.1 Error Handling: Cassette Ejection 1....................................................MD - 153
6.2 Error Handling: Cassette Ejection 2....................................................MD - 154
6.3 Error Handling: Recovered IP Load ....................................................MD - 156
6.4 Error Handling: Overexposure ............................................................MD - 158
6.5 Error Handling: Lamp Failure ..............................................................MD - 158
6.6 Error Handling: Detection of IP with Improper Generation
or Unit Type ...........................................................................................MD - 159
6.7 Error Handling: IDT Line Error.............................................................MD - 160
6.8 Error Handling: ID Information Error ..................................................MD - 161
6.9 Error Handling: After-Reading Conveyance Error.............................MD - 162
6.10 Error Handling: BCR Retry...................................................................MD - 163
7. Error Code Index...........................................................................................MD - 164
8. Parameters ....................................................................................................MD - 166
8.1 Timer Settings .......................................................................................MD - 166
8.2 Retry Count Settings ............................................................................MD - 171
8.3 Erasure Conveyance Table ..................................................................MD - 172
8.4 Pulse Motor Parameters.......................................................................MD - 174

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Contents Maintenance Machine Description
9. Unit Location Information ............................................................................MD - 176
9.1 Unit Locations .......................................................................................MD - 176
9.2 Roller Locations....................................................................................MD - 180
9.3 IP Conveyance Locations ....................................................................MD - 181
9.4 Home Position Values ..........................................................................MD - 182
9.5 Installation Locations for Members in Contact
with IP Fluorescent Face......................................................................MD - 185
9.6 Data on Grip Springs ............................................................................MD - 186
10. Information on Board LEDs .........................................................................MD - 188
11. Interlock.........................................................................................................MD - 190
12. Description of Initialization Self-Diagnostic Steps
and Shutdown Operation ...............................................................................MD - 192

Contents Maintenance Troubleshooting
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Troubleshooting (MT)
1. Document Map ........................................................................................................... MT - 2
2. Troubleshooting Procedures Based on Error Codes ............................................... MT - 3
2.1 How to Understand Error Code ........................................................................ MT - 3
2.2 Error Codes List................................................................................................. MT - 4
2.3 Format of Detail Information........................................................................... MT - 51
2.3.1 Supplementary Explanation of Detail Information............................. MT - 68
2.3.2 Format of Abort Code........................................................................... MT - 69
2.3.3 Locations to be First Checked When Trouble Occurs Immediately
After Startup ........................................................................................... MT - 70
2.4 Troubleshooting flow .................................................................................... MT - 74
03A2 Cassette hold release error / 03A3 Degeneration for all shelves ... MT - 74
03A8 Out-Of-Spec Initialization IP Size/13A8 Out-Of-Spec IP Size ...........MT - 76
03B1 Feed Conveyance Error...................................................................... MT - 78
03B2 Load Conveyance Error ..................................................................... MT - 80
03B3 Side-Positioning Conveyor Inlet Conveyance Error........................ MT - 82
03B4 Recovered IP Load Slow Conveyance Error .................................... MT - 84
03B5 Recovered IP Load Fast Conveyance Error ..................................... MT - 86
03B6 Feed/Load Conveyance Remaining IP Ejection Error ................... MT - 88
03B7 Side-Positioning Conveyance Remaining IP Ejection Error............MT - 90
03B8/13B8 IP Position Information Error....................................................... MT - 92
03B9 Load Standby Remaining IP Ejection Error...................................... MT - 94
03BC Side-Positioning Operation Error...................................................... MT - 96
03BF Side-Positioning Grip Operation Error ........................................... MT - 98
03C0 Reading Preparation Conveyance Error....................................... MT - 100
03C1 Reading Conveyance Error............................................................ MT - 102
03C2 Reading IP Leading-Edge Detection Error ................................... MT - 104
03C6 Driving Shaft Grip Error / 03C8 Driving Shaft Grip Release Error
03CA Driving Shaft Grip Self-Diagnostics Error ...................................... MT - 106
03C7 Driven Shaft Grip Error / 03C9 Driven Shaft Grip Release Error
03CB Driven Shaft Grip Self-Diagnostics Error ........................................ MT - 108
03D1 After-Reading Conveyance Error .................................................... MT - 110
03D2 Switchback Conveyance Error ........................................................ MT - 112
03D3 Before-Erasure Conveyance Error .................................................. MT - 114
03D4 Branch Path Changeover Guide Operation Error ........................... MT - 116
03D5 Erasure Conveyance Error............................................................. MT - 118

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Contents Maintenance Troubleshooting
03D6 After-Erasure Conveyance Error .................................................. MT - 120
03D7 Convergence Path Changeover Guide Operation Error.............. MT - 122
03D8 After-Reading Conveyance Remaining IP Ejection Error ........... MT - 124
03D9 Erasure Conveyance Remaining IP Ejection Error...................... MT - 126
03DC After-Reading Conveyance Grip Operation Error........................ MT - 128
03DD Elevation HP Movement error........................................................ MT - 130
03DE Elevation Movement Error ............................................................. MT - 132
03E8 Suction Cup Movement Operation Error ...................................... MT - 134
13A1 Cassette Setting Error .................................................................... MT - 136
13A2 Cassette Hold Release Error.......................................................... MT - 138
13A3 Cassette Shelf Error ....................................................................... MT - 140
13A9 Barcode Read Error ........................................................................ MT - 142
13AA Erasure Lamp Failure ..................................................................... MT - 144
13AB Overexposed IP Unerased ............................................................. MT - 146
13AC ID Information Not Registered ....................................................... MT - 148
13AD IP with Improper Generation or Type Detected............................ MT - 150
13AE No MPM Code Available ................................................................. MT - 152
13AF IDT Line Error.................................................................................. MT - 154
13E1 Feed IP Suction Error ..................................................................... MT - 156
13E2 Feed IP Dropped/13E5 Load IP Dropped ...................................... MT - 158
13E3 IP Grip Error .................................................................................... MT - 160
13E4 Load IP Suction Error..................................................................... MT - 162
2.5 IP Jam Handling Procedures ........................................................................ MT - 164
2.6 Checking for Improper IP Conveyance........................................................ MT - 175
3. Troubleshooting Procedures Based on Abnormal Images.................................. MT - 178
3.1 Troubleshooting for Scanner-Related Errors.............................................. MT - 178
3.2 Image Troubleshooting for Controller ......................................................... MT - 185
3.3 Other Image Troubleshooting....................................................................... MT - 189
4. Troubleshooting Procedures Based on Improper Operation .............................. MT - 192
4.1 Remedy When Cassette Cannot be Removed ............................................ MT - 192
4.2 Remedy When Machine Does Not Power Up .............................................. MT - 193
4.3 Remedy When LED Is Not Lit........................................................................ MT - 194
4.4 Remedy When System Goes Down Unexpectedly during Operation ....... MT - 195
4.5 Main Numerical Values Used for Troubleshooting..................................... MT - 196
5. Machine Circuit Diagram ......................................................................................... MT - 198
6. Power Supply Circuit Diagram................................................................................ MT - 217
Appendix 1. Supplementary Information ...........................................................................MT_A1-1
Appendix 1.1 Setting of Error Code to be Captured for IO Trace.............MT_A1-1
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Contents Maintenance Checks, Replacement and Adjustment of Parts
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Checks, Replacement and Adjustment of Parts (MC)
1. Document Map .......................................................................................................... MC - 2
2. Common Procedures for Checks, Replacement, and Adjustment......................... MC - 4
2.1 Turning ON/OFF High-Voltage Switch ............................................................ MC - 4
2.2 Checking Various Sensors .............................................................................. MC - 6
2.3 Clearing Backup Memory................................................................................ MC - 16
2.4 Setting Date and Time ..................................................................................... MC - 18
3. Removing and Reinstalling Covers.......................................................................... MC - 20
4. Cassette Set Unit........................................................................................................ MC - 26
4.1 Pulling Out and Pushing In Tray of Cassette Set Unit ................................. MC - 26
4.2 Removing and Reinstalling Cassette Set Unit .............................................. MC - 28
4.3 Removing and Reinstalling Shutter Assembly ............................................. MC - 30
4.4 Checking and Replacing Cassette Ejection Sensors (SA1, 5, 9, 13) .......... MC - 32
4.5 Checking, Replacing, and Adjusting Cassette IN Sensors
(SA2, 6, 10, 14) ................................................................................................. MC - 34
4.6 Checking and Replacing Cassette Hold Sensors (SA3, 7, 11, 15) .............. MC - 38
4.7 Checking and Replacing Mammo/ST Sensors (SA4, 8, 12, 16) ................... MC - 40
4.8 Checking, Replacing, and Adjusting Cassette Hold Solenoids
(SOLA1-4) ....................................................................................................... MC - 42
4.9 Checking and Replacing Elevation HP Sensor (SA17) ................................ MC - 47
4.10 Replacing Inch/Metric Guides ........................................................................ MC - 49
4.11 Adjusting Movable Roll ................................................................................... MC - 50
4.12 Replacing Rubber Rollers of Cassette Set Unit ............................................ MC - 55
4.13 Replacing Guide Plate of Cassette Set Unit .................................................. MC - 56
5. Up-Down IP Removal Unit ......................................................................................... MC - 60
5.1 Checking and Replacing Suction Cup HP Sensor (SB1) ............................. MC - 60
5.2 Checking and Replacing Cassette Inlet IP Sensor (SB2)............................. MC -62
5.3 Checking, Replacing, and Adjusting Each Shelf Position Sensor (SB3) ... MC - 64
5.4 Checking and Adjusting Inch/Metric Sensor (SB4) ...................................... MC - 66
5.5 Checking and Replacing Suction Sensor (SB5) ......................................... MC - 67
5.6 Replacing Suction Pump (PB1) .................................................................... MC - 68
5.7 Replacing IP Leak Valve (SVB1) ..................................................................... MC - 70
5.8 Replacing Suction Cups.................................................................................. MC - 71
5.9 Replacing Suction Cup Drive Motor (MB1).................................................... MC - 73
5.10 Replacing IP Transport Motor (MB2)............................................................ MC - 75

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Contents Maintenance Checks, Replacement and Adjustment of Parts
5.11 Replacing Up-Down Drive Motor (MB3) ....................................................... MC - 76
5.12 Replacing Elevation Timing Belt .................................................................. MC - 77
5.13 Checking and Replacing Shock Absorbers of IP Removal Unit.................. MC - 78
5.14 Checking and Replacing Elevation Changeover Guide ............................... MC - 82
5.15 Replacing Vertical Conveyor Guide............................................................... MC - 84
6. Before-Side-Positioning Conveyor........................................................................... MC - 86
6.1 Removing and Reinstalling Before-Side-Positioning Conveyor ................. MC - 86
6.2 Checking and Replacing Before-BCR IP Sensor (SC1)................................ MC - 88
6.3 Checking and Replacing Convergence Standby IP Sensor (SC2) .............. MC - 90
6.4 Checking, Replacing, and Adjusting Convergence Path Changeover Guide
Drive Solenoid (SOLC1) .................................................................................. MC - 92
6.5 Replacing Before-Side-Positioning Conveyor IP Transport Motor (MC1) .. MC - 94
6.6 Replacing and Adjusting Before-Side-Positioning Conveyor Drive
Timing Belt ....................................................................................................... MC - 95
6.7 Replacing Cleaning Roller .............................................................................. MC - 97
6.8 Replacing Before-Side-Positioning Conveyor Rubber Rollers ................... MC - 99
6.9 Checking and Replacing Shock Absorber-Attached Guide of Before-Side-
Positioning Conveyor.................................................................................... MC - 100
7. Pulling Out and Pushing In Scanner Unit .............................................................. MC - 106
8. Side-Positioning Conveyor.................................................................................... MC - 110
8.1 Removing and Reinstalling Side-Positioning Conveyor............................ MC - 110
8.2 Checking and Replacing Side-Positioning Mechanism HP Sensor
(SD1)................................................................................................................ MC - 112
8.3 Checking and Replacing Grip Release HP Sensor (SD2)........................... MC - 114
8.4 Checking and Replacing Side-Positioning IP Sensor (SD3)...................... MC - 116
8.5 Replacing Side-Positioning Motor (MD1) .................................................... MC - 118
8.6 Replacing Grip Release Motor (MD2)........................................................... MC - 119
8.7 Replacing IP Transport Motor (MD3)............................................................ MC - 120
8.8 Replacing Barcode Reader (BCR) ................................................................ MC - 121
8.9 Checking and Replacing Side-Positioning Conveyor Grip Mechanism ... MC - 122
8.10 Checking and Replacing Side-Positioning Top Stopper............................ MC - 124
8.11 Replacing Side-Positioning Conveyor Grip Release Timing Belt ........... MC - 126
8.12 Checking, Replacing, and Adjusting Side-Positioning Conveyor
IP Conveyance Timing Belt......................................................................... MC - 127
8.13 Replacing Side-Positioning Conveyor Rubber Rollers .............................. MC - 130
8.14 Checking and Replacing Shock Absorbers
of Side-Positioning Conveyor..................................................................... MC - 131

Contents Maintenance Checks, Replacement and Adjustment of Parts
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9. Scanning Optics Unit............................................................................................. MC - 132
9.1 Adjusting Read Start Position and Read Width ........................................ MC - 132
9.2 Shading/Sensitivity Correction..................................................................... MC - 138
9.3 Removing and Reinstalling Scanning Optics Unit ..................................... MC - 143
9.4 Checking and Replacing LD Assembly ....................................................... MC - 145
9.5 Checking and Replacing Polygonal Mirror Assembly ............................... MC - 151
9.6 Checking and Replacing SYN08A Board..................................................... MC - 156
10. Subscanning Unit..................................................................................................... MC - 162
10.1 Checking and Replacing SCN08A Board..................................................... MC - 162
10.2 Servicing Light-Collecting Guide ................................................................. MC - 165
10.3 Checking and Replacing PMT08A Board..................................................... MC - 174
10.4 Servicing Light-Collecting Mirror ................................................................. MC - 180
10.5 Checking and Replacing IP Leading-Edge Sensor (SZ1/SED08A)............ MC - 184
10.6 Checking and Replacing Driving-Side Grip Release HP Sensor (SZ2)..... MC - 186
10.7 Checking and Replacing Driven-Side Grip Release HP Sensor (SZ3) ...... MC - 187
10.8 Checking and Replacing Subscanning Motor (MZ1) .................................. MC - 188
10.9 Replacing Driving Shaft Grip Motor (MZ2) .................................................. MC - 190
10.10 Replacing Driven Shaft Grip Motor (MZ3).................................................... MC - 191
10.11 Checking and Replacing SUS Belt/Rubber Belt/Tensioner ...................... MC - 192
10.12 Checking and Replacing Kapton®Belt/Tensioner/Flywheel .................... MC - 195
10.13 Replacing Rubber Roller Located Above Subscanning Unit..................... MC - 199
10.14 Replacing Grip Arms ..................................................................................... MC - 201
10.15 Replacing Guide Plate of Subscanning Unit ............................................... MC - 202
10.16 Replacing Lower Rubber Rollers of Subscanning Unit ............................. MC - 204
10.17 Replacing and Adjusting Shock-Absorbing Rubbers ................................ MC - 205
11. After-Reading Conveyor ........................................................................................ MC - 208
11.1 Removing and Reinstalling After-Reading Conveyor .............................. MC - 208
11.2 Checking and Replacing Grip Release HP Sensor (SE1)........................... MC - 213
11.3 Replacing Grip Release Motor (ME1) ........................................................... MC - 215
11.4 Replacing IP Transport Motor (ME2).......................................................... MC - 216
11.5 Checking and Replacing Shock Absorber of After-Reading Conveyor.. MC - 217

CR-IR341 Service Manual 0.15
009-051-04
05.31.99 FM2460
0.15
Contents Maintenance Checks, Replacement and Adjustment of Parts
12. Erasure Conveyor .................................................................................................. MC - 218
12.1 Removing and Reinstalling Erasure Lamp Assembly................................ MC - 218
12.2 Removal and Reinstallation of Erasure Conveyor...................................... MC - 220
12.3 Checking and Replacing After-Reading Conveyance Standby
IP Sensor (SF1) .............................................................................................. MC - 222
12.4 Checking and Replacing Changeover IP Sensor (SF2).............................. MC - 224
12.5 Checking and Replacing Load Standby IP Sensor (SF3)........................... MC - 226
12.6 Checking and Replacing Overrun IP Sensor (SF4)................................... MC - 228
12.7 Replacing IP Transport Motor (MF1) ............................................................ MC - 230
12.8 Replacing Erasure Lamp............................................................................... MC - 231
12.9 Replacing Thermal Switches (TSW1, TSW2)............................................... MC - 232
12.10 Replacing Erasure Cooling Fan (FANF1)..................................................... MC - 234
12.11 Replacing Erasure Cooling Fan Air Filter.................................................... MC - 235
12.12 Checking, Replacing, and Adjusting Erasure Unit IP Conveyance
Timing Belt ..................................................................................................... MC - 236
12.13 Replacing Erasure Conveyor Rubber Rollers ............................................. MC - 239
12.14 Checking and Replacing Branch Path Changeover Guide ........................ MC - 240
12.15 Checking and Replacing Shock Absorber of Erasure Conveyor .............. MC - 243
13. Housings................................................................................................................... MC - 252
13.1 Replacing Power Supply Unit ..................................................................... MC - 252
13.2 Replacing Fuses ............................................................................................ MC - 253
13.3 Replacing HDD............................................................................................... MC - 255
13.4 Replacing FDD and Checking Boards Setting ............................................ MC - 257
13.5 Replacing the Monitor ................................................................................... MC - 259
13.6 Cleaning Monitor Screen............................................................................... MC - 261
14. Cleaning IP.............................................................................................................. MC - 262
15. Tools........................................................................................................................ MC - 264
15.1 Standard Tools............................................................................................... MC - 264
15.2 Special Tools and Measuring Instruments.................................................. MC - 268
15.3 Special Consumables.................................................................................. MC - 269
15.4 Semi-Standard Tools ................................................................................... MC - 270
009-051-04
05.31.99 FM2460 (2)