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Rev. 02/2003

6.7.4 CLEANING ROLLER....................................................................... 6-42

6.7.5 HOT ROLLER AND PRESSURE ROLLER .................................... 6-43

6.8 DRIVE AREA............................................................................................ 6-44

6.8.1 REGISTRATION CLUTCH AND TRANSFER BELT CLUTCH....... 6-44

6.8.2 MAIN MOTOR ................................................................................. 6-45

6.8.3 TONER BOTTLE MOTOR .............................................................. 6-46

6.9 PCBS........................................................................................................ 6-47

6.9.1 POWER PACK ................................................................................ 6-47

6.9.2 I/O BOARD ...................................................................................... 6-47

6.9.3 BICU BOARD .................................................................................. 6-48

6.9.4 PSU ................................................................................................. 6-49

6.10 HARD DISK ............................................................................................ 6-50

6.11 COPY ADJUSTMENTS: PRINTING/SCANNING .................................. 6-51

6.11.1 PRINTING ..................................................................................... 6-51

Registration - Leading Edge/Side-to-Side ........................................... 6-51

Blank Margin........................................................................................ 6-52

Main Scan Magnification ..................................................................... 6-52

Parallelogram Image Adjustment ........................................................ 6-53

6.11.2 SCANNING ................................................................................... 6-54

Registration: Platen Mode ................................................................... 6-54

Magnification........................................................................................ 6-54

Scanner Skew Image Adjustment ....................................................... 6-55

6.11.3 ADF IMAGE ADJUSTMENT ......................................................... 6-56

Registration.......................................................................................... 6-56

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

7.2 ELECTRICAL COMPONENT DEFECTS................................................. 7-24

7.2.1 SENSORS ....................................................................................... 7-24

7.2.2 SWITCHES...................................................................................... 7-25

7.3 BLOWN FUSE CONDITIONS .................................................................. 7-26

7.4 ROM HISTORY ........................................................................................ 7-27

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A230/A231/A232