Troubleshooting - Ricoh A265 Service Manual

6.5.4 HOT ROLLER AND FUSING LAMP .............................................. 6-19
6.5.5 PRESSURE ROLLER/CLEANING ROLLER ................................. 6-20
6.5.6 PAPER EXIT SENSOR/PAPER OVERFLOW SENSOR ............... 6-21
6.6 PAPER FEED ......................................................................................... 6-22
6.6.1 FEED ROLLERS............................................................................ 6-22
6.6.2 PAPER END SENSOR .................................................................. 6-23
6.6.3 PAPER TRAY LIFT MOTORS ....................................................... 6-24
6.6.4 REGISTRATION CLUTCH............................................................. 6-25
6.6.5 PAPER FEED CLUTCHES ............................................................ 6-26
Lower Paper Feed Clutch .................................................................. 6-26
Upper Paper Feed Clutch. ................................................................. 6-26
6.6.6 RELAY CLUTCHES....................................................................... 6-27
6.6.7 PAPER SIZE DETECTOR/SPECIAL PAPER SENSOR................ 6-28
6.6.8 REGISTRATION SENSOR ............................................................ 6-29
6.6.9 RELAY SENSORS......................................................................... 6-30
Upper Relay Sensor........................................................................... 6-30
Lower Relay Sensor........................................................................... 6-30
6.7 PCBS AND OTHER ITEMS .................................................................... 6-31
6.7.1 BICU BOARD................................................................................. 6-31
6.7.2 I/O BOARD .................................................................................... 6-32
6.7.3 POWER PACK............................................................................... 6-32
6.7.4 MAIN MOTOR................................................................................ 6-33
6.7.5 PSU ............................................................................................... 6-34
6.8 COPY ADJUSTMENTS: PRINTING/SCANNING ................................... 6-35
6.8.1 PRINTING...................................................................................... 6-35
Registration - Leading Edge/Side-to-Side .......................................... 6-35
Blank Margin ...................................................................................... 6-36
Main Scan Magnification .................................................................... 6-36
Parallelogram Image Adjustment ....................................................... 6-37
6.8.2 SCANNING .................................................................................... 6-38
Registration: Platen Mode .................................................................. 6-38
Magnification ...................................................................................... 6-38
Standard White Density Adjustment................................................... 6-39
6.8.3 ADF IMAGE ADJUSTMENT .......................................................... 6-40
Registration ........................................................................................ 6-40

TROUBLESHOOTING

7. TROUBLESHOOTING.................................................................. 7-1
7.1 SERVICE CALL CONDITIONS................................................................. 7-1
7.1.1 SUMMARY....................................................................................... 7-1
7.1.2 SC CODE DESCRIPTIONS............................................................. 7-2
SC194: IPU White Level Detection Error ............................................. 7-4
SC546: Unstable fusing temperature ................................................... 7-9
SC620: Communication error between IOB and ADF ........................ 7-10
SC760: ADF gate abnormal ............................................................... 7-14
SC900: Electrical total counter error .................................................. 7-14
SC901: Mechanical Total Counter ..................................................... 7-14
SM vii
Rev. 04/2000
A265/A267