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001317MIU

RICOH GROUP COMPANIES

SERVICE MANUAL

A163/A251/A252

B047/B048

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Summary of Contents for A163

Page 1: ...001317MIU RICOH GROUP COMPANIES SERVICE MANUAL A163 A251 A252 B047 B048...

Page 2: ...163 N A FW740 N A A251 N A FW750 N A A252 N A FW760 N A B047 A040 FW770 7700W B048 A041 FW780 7800W DOCUMENTATION HISTORY REV NO DATE COMMENTS Original Printing 1 5 95 Revised Pages 2 5 96 Reprint 3 6...

Page 3: ...OVERVIEW 2 3 2 2 CHARGE CORONA CIRCUIT 2 4 2 3 CORONA UNIT VENTILATION 2 5 3 EXPOSURE 2 6 3 1 OVERVIEW 2 6 3 2 PAPER AND ORIGINAL FEED 2 7 3 2 1 Basic Operation Manual Feed 2 7 3 2 2 Original Jam Chec...

Page 4: ...6 CLEANING 2 24 6 1 OVERVIEW 2 24 6 2 COLLECTION OF USED TONER 2 25 7 QUENCHING 2 26 8 FUSING AND PAPER EXIT 2 27 8 1 OVERVIEW 2 27 8 2 DRIVE MECHANISM 2 28 8 2 1 Fusing Unit Drive 2 28 8 3 FUSING TE...

Page 5: ...Mode Table 4 10 3 2 INPUT OUTPUT CHECK MODE 4 27 3 2 1 INPUT OUTPUT CHECK MODE ACCESS PROCEDURE 4 27 3 2 2 INPUT CHECK MODE TABLE 4 28 3 2 3 OUTPUT CHECK MODE TABLE 4 29 3 3 POWER ON INITIAL SETTING M...

Page 6: ...FEED UNIT REMOVAL 5 2 2 2 EXPOSURE GLASS REMOVAL 5 3 2 3 EXPOSURE LAMP REMOVAL 5 3 2 4 FIBER OPTICS ARRAY REMOVAL 5 4 2 5 LIGHT SENSOR REPLACEMENT 5 5 3 DEVELOPMENT 5 6 3 1 DEVELOPMENT UNIT REMOVAL 5...

Page 7: ...R THERMISTOR REPLACEMENT 5 31 5 8 FUSING THERMOFUSE REPLACEMENT 5 31 5 9 FUSING TEMPERATURE ADJUSTMENT 5 32 6 T S CORONA UNIT 5 33 6 1 T S CORONA UNIT REMOVAL 5 33 6 2 TRANSFER AND SEPARATION CORONA W...

Page 8: ...ing Overheat 6 9 2 8 SC Code E 8 Fusing Warm up Error 6 10 2 9 SC Code E 9 Toner Density Sensor Abnormal 6 10 2 10 SC Code E 10 Main Motor Abnormal 6 11 2 11 SC Code E 11 Toner Density Sensor adjustme...

Page 9: ...T REMOVAL 7 17 7 3 PAPER FEED ROLLER REPLACEMENT 7 18 7 4 PAPER FEED MOTOR TIMING BELT TENSION ADJUSTMENT 7 19 7 5 CUT LENGTH ADJUSTMENT 7 20 7 5 1 Preset Cut Adjustment standards 3 mm for length shor...

Page 10: ...3 copier Only the differences from the base copier are described in the following pages Therefore this documentation should be treated as an insert version of the base copier s service manual It shoul...

Page 11: ...TS 3 2 3 1 3 MACHINE LEVEL 3 2 3 1 4 POWER SOURCE 3 3 3 2 INSTALLATION PROCEDURES 3 4 3 2 1 COPIER 3 4 3 2 2 TABLE A836 3 12 3 2 3 COPY TRAY A836 10 3 14 3 2 4 ROLLER FEEDER A571 3 18 4 SERVICE TABLES...

Page 12: ...WIRE REPLACEMENT 5 9 5 8 COPY QUALITY ADJUSTMENT 5 11 5 8 4 REGISTRATION ADJUSTMENT 5 11 6 TROUBLESHOOTING 6 1 6 2 SERVICE CALL CONDITIION 6 1 6 2 12 SC CODE E 14 ZERO CROSS SIGNAL DETECTION ABNORMAL...

Page 13: ...ng 9 OPC Drum 10 T S Corona Unit 11 Main Drive Unit 12 Table 13 Paper Spool 14 Roll Feeder 15 Paper Registration Rollers 16 Development Unit 17 Toner Cartridge 18 Manual Feed Table 19 Charge Corona Un...

Page 14: ...163 A251 A252 copiers Only the differences from the base copier are described in the following pages Therefore this documentation should be treated as an insert version of the base copier s service ma...

Page 15: ...SECTION DESCRIPTIONS 2 DETAILED SECTION DESCRIPTIONS 2 1 2 1 DRUM 2 1 1 DRUM CHARACTERISTICS 2 1 2 DRUM DRIVE 2 2 CHARGE 2 2 1 OVERVIEW 2 2 2 CHARGE CORONA CIRCUIT 2 2 3 CORONA UNIT VENTILATION 2 3 EX...

Page 16: ...using Unit Drive 2 8 3 TEMPERATURE CONTROL 2 8 Fusing Circuit Operation Overheat Protection Hot Roller Temperature Control 2 8 2 8 4 TEMPERATURE CONTROL The Ready Condition Fusing Unit Operating Modes...

Page 17: ...ower Pack 4 3 SERVICE TOOLS 4 1 4 3 1 SERVICE PROGRAM MODE 4 1 Service Program Mode Access Procedure Service Program Mode Table 4 1 4 3 2 INPUT OUTPUT CHECK MODE 4 23 Input Output Check Mode Access Pr...

Page 18: ...ONLY 5 2 3 EXPOSURE LAMP REMOVAL A252 ONLY 5 2 4 FIBER OPTICS ARRAY REMOVAL A252 ONLY 5 2 5 LIGHT SENSOR REPLACEMENT A252 ONLY 5 2 6 SYNCHRO CUT LENGTH ADJUSTMENT A252 ONLY 5 3 DEVELOPMENT 5 3 1 DEVEL...

Page 19: ...HEATER INSTALLATION 5 8 COPY QUALITY ADJUSTMENT 5 4 5 8 1 LIGHT SENSOR ADJUSTMENT 5 8 2 IMAGE BIAS ADJUSTMENT 5 8 3 TONER DENSITY ADJUSTMENT 5 8 4 REGISTRATION ADJUSTMENT 5 4 TROUBLESHOOTING 6 TROUBLE...

Page 20: ...ATION 7 1 1 1 SPECIFICATIONS 7 1 1 2 ELECTRICAL COMPONENT DESCRIPTIONS 7 2 2 DETAILED SECTION DESCRIPTIONS 7 3 2 1 MECHANICAL OPERATION 7 3 2 1 1 BASIC OPERATION 7 3 2 1 2 ROLL EDITION DETECTION 7 5 2...

Page 21: ...TECHNICAL SERVICE BULLETINS...

Page 22: ...A163 A251 A252 B047 B048 PARTS CATALOG 001316MIU...

Page 23: ...00W B048 A041 FW780 7800W A571 Roll Feeder A570 Roll Cutting Rail A714 Table A836 Table Copy Tray B435 B436 Roll Feeder Type A B B437 Roll Cutting Rail Type 770 B439 Table type 770 B440 Copy Tray Type...

Page 24: ...70 FW780 service manual RICOH FW740 FW750 FW760 FW770 FW780 service manual RICOH FW740 FW750 FW760 FW770 FW780 service manual RICOH FW740 FW750 FW760 FW770 FW780 service manual RICOH FW740 FW750 FW760...

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