Gestetner B003 Service Manual page 16

3.17 DUPLEX UNIT.......................................................................................3-64
3.17.1 DUPLEX COVER REMOVAL .......................................................3-64
3.17.2 DUPLEX ENTRANCE SENSOR REPLACEMENT.......................3-65
3.17.3 DUPLEX EXIT SENSOR REPLACEMENT ..................................3-66
3.18 DRIVE AREA.........................................................................................3-67
3.18.1 REGISTRATION CLUTCH AND TRANSFER BELT
CONTACT CLUTCH .....................................................................3-67
3.18.2 MAIN MOTOR ..............................................................................3-68
3.18.3 TONER SUPPLY MOTOR............................................................3-69
3.19 PRINTED CIRCUIT BOARDS ...............................................................3-70
3.19.1 HIGH VOLTAGE POWER SUPPLY .............................................3-70
3.19.2 I/O BOARD ...................................................................................3-71
3.19.3 BICU BOARD ...............................................................................3-72
3.19.4 PSU ..............................................................................................3-72
3.20 HARD DISK/CONTROLLER BOARD....................................................3-73
3.21 COPY ADJUSTMENTS: PRINTING/SCANNING ..................................3-74
3.21.1 PRINTING ....................................................................................3-74
Registration - Leading Edge/Side-to-Side...........................................3-74
Blank Margin.......................................................................................3-75
Main Scan Magnification.....................................................................3-75
Parallelogram Image Adjustment........................................................3-76
3.21.2 SCANNING...................................................................................3-77
Registration: Platen Mode...................................................................3-77
Magnification.......................................................................................3-77
Sub Scan Magnification ......................................................................3-77
3.21.3 ADF IMAGE ADJUSTMENT.........................................................3-78
Registration.........................................................................................3-78
3.21.4 TOUCH SCREEN CALIBRATION ................................................3-79
TROUBLESHOOTING
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 ................................................4-16
4.2.1 SENSORS ......................................................................................4-16
4.2.2 SWITCHES.....................................................................................4-17
4.3 BLOWN FUSE CONDITIONS .................................................................4-18
4.4 LEDS .......................................................................................................4-18
4.5 TEST POINTS .........................................................................................4-18
SERVICE TABLES
5. SERVICE TABLES...................................................................... 5-1
5.1 SERVICE PROGRAM MODE....................................................................5-1
5.1.1 SERVICE PROGRAM MODE OPERATION.....................................5-1
B003/B004/B006/B007 iv SM