Ricoh G035 Service Manual page 490

Rev. 03/2000
6.9.3 THERMISTOR AND THERMOFUSE............................................. 6-41
6.9.4 CLEANING ROLLER ..................................................................... 6-42
6.9.5 HOT ROLLER AND PRESSURE ROLLER.................................... 6-43
6.10 DRIVE AREA ........................................................................................ 6-44
6.10.1 REGISTRATION CLUTCH AND TRANSFER BELT CLUTCH .... 6-44
6.10.2 MAIN MOTOR.............................................................................. 6-45
6.10.3 TONER BOTTLE MOTOR ........................................................... 6-46
6.11 COVERS............................................................................................... 6-47
6.12 PCBs..................................................................................................... 6-49
6.12.1 POWER PACK............................................................................. 6-49
6.12.2 PSU ............................................................................................. 6-49
6.12.3 PRINTER CONTROL BOARD AND NIB...................................... 6-50
6.12.4 HARD DISK ................................................................................. 6-51
6.12.5 I/O BOARD .................................................................................. 6-52
6.12.6 BICU BOARD............................................................................... 6-53
6.13 PRINT IMAGE ADJUSTMENTS ........................................................... 6-54
TROUBLESHOOTING
7. TROUBLESHOOTING.................................................................. 7-1
7.1 SERVICE CALL CONDITIONS................................................................. 7-1
7.1.1 SUMMARY....................................................................................... 7-1
7.1.2 SC CODE DESCRIPTIONS............................................................. 7-1
7.1.3 PRINTER CONTROLLER.............................................................. 7-20
7.1.4 NETWORK INTERFACE BOARD.................................................. 7-22
7.2 ELECTRICAL COMPONENT DEFECTS................................................ 7-24
7.2.1 SENSORS ..................................................................................... 7-24
7.2.2 SWITCHES .................................................................................... 7-25
7.3 BLOWN FUSE CONDITIONS................................................................. 7-25
7.4 ROM HISTORY ...................................................................................... 7-26
PAPER TRAY UNIT G520
1. OVERALL MACHINE 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 DESCRIPTIONS ........................................................ 8-6
2.1 PICK-UP AND SEPARATION ROLLER RELEASE MECHANISM ........... 8-6
2.2 PAPER LIFT MECHANISM ...................................................................... 8-7
2.3 PAPER END DETECTION ....................................................................... 8-9
2.4 PAPER HEIGHT DETECTION ............................................................... 8-10
2.5 PAPER SIZE DETECTION ..................................................................... 8-11
G035 vi SM