Ricoh A-P3 Service Manual page 7

3.13.8 TRAY LIFT MOTOR .....................................................................3-38
3.13.9 FEED/DEVELOPMENT MOTOR..................................................3-39
3.14 FUSING .................................................................................................3-40
3.14.1 FUSING UNIT...............................................................................3-40
3.14.2 FUSING UNIT EXIT GUIDE .........................................................3-41
3.14.3 HOT ROLLER STRIPPERS .........................................................3-41
3.14.4 FUSING LAMPS ...........................................................................3-42
Left Side..............................................................................................3-42
Right Side ...........................................................................................3-43
3.14.5 THERMISTORS AND THERMOSTATS .......................................3-44
3.14.6 HOT ROLLER/PRESSURE ROLLER...........................................3-45
3.15 BY-PASS TRAY ....................................................................................3-47
3.15.1 COVER REPLACEMENT .............................................................3-47
3.15.2 BY-PASS FEED/PICK-UP ROLLER.............................................3-48
3.15.3 BY-PASS SEPARATION ROLLER REPLACEMENT ...................3-49
3.15.4 PAPER END SENSOR/PICK-UP SOLENOID..............................3-50
3.15.5 PAPER SIZE SENSOR BOARD REPLACEMENT .......................3-51
3.15.6 BY-PASS TABLE REMOVAL .......................................................3-52
3.15.7 PAPER FEED CLUTCH REPLACEMENT....................................3-53
3.16 DUPLEX UNIT.......................................................................................3-54
3.16.1 DUPLEX COVER REMOVAL .......................................................3-54
3.16.2 DUPLEX ENTRANCE SENSOR REPLACEMENT.......................3-55
3.16.3 DUPLEX EXIT SENSOR REPLACEMENT ..................................3-56
3.17 DRIVE AREA.........................................................................................3-57
3.17.1 REGISTRATION/TRANSFER BELT CONTACT CLUTCHES ......3-57
3.17.2 MAIN MOTOR ..............................................................................3-58
3.17.3 FUSING/EXIT MOTOR.................................................................3-59
3.17.4 FUSING/EXIT CLUTCH................................................................3-60
3.17.5 TONER SUPPLY MOTOR............................................................3-61
3.18 PRINTED CIRCUIT BOARDS ...............................................................3-62
3.18.1 HIGH VOLTAGE POWER SUPPLY .............................................3-62
3.18.2 I/O BOARD ...................................................................................3-63
3.18.3 BICU BOARD ...............................................................................3-64
3.18.4 PSU ..............................................................................................3-64
3.19 HARD DISK/CONTROLLER BOARD....................................................3-65
To Format the HDD.............................................................................3-65
3.20 PRINTING ADJUSTMENTS ..................................................................3-66
3.21 PARALLELOGRAM IMAGE ADJUSTMENT .........................................3-67
4. TROUBLESHOOTING ................................................................ 4-1
4.1 SERVICE CALL CONDITIONS .................................................................4-1
4.1.1 SUMMARY .......................................................................................4-1
4.1.2 SC CODE DESCRIPTIONS .............................................................4-2
4.2 ELECTRICAL COMPONENT DEFECTS ................................................4-13
4.2.1 SENSORS ......................................................................................4-13
4.2.2 SWITCHES.....................................................................................4-14
4.3 BLOWN FUSE CONDITIONS .................................................................4-15
4.4 LEDS .......................................................................................................4-15
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