Ricoh B234 Service Manual page 21

3.15.6 MB (MOTHER BOARD)...........................................................3-173
3.15.7 HARD DISKS ...........................................................................3-174
Disposal of HDD Units ......................................................................3-176
Reinstallation ....................................................................................3-176
3.15.8 PSU-C (POWER SUPPLY UNIT-CONTROLLER)...................3-177
3.16 MOTORS ..........................................................................................3-178
3.16.1 DRUM MOTOR........................................................................3-178
3.16.2 DUPLEX MOTOR ....................................................................3-180
3.16.3 FUSING MOTOR .....................................................................3-181
3.16.4 EXIT MOTOR ..........................................................................3-182
3.17 OZONE FILTER................................................................................3-183
3.18 COPY IMAGE ADJUSTMENT: PRINTING/SCANNING ...................3-184
3.18.1 PRINTING................................................................................3-184
Registration - Leading Edge.............................................................3-184
Registration - Side-to-Side ...............................................................3-185
Magnification Adjustment..................................................................3-187
3.18.2 PARALLELOGRAM IMAGE ADJUSTMENT............................3-188
3.18.3 SCANNING..............................................................................3-190
Registration: Platen Mode.................................................................3-190
Magnification.....................................................................................3-190
3.18.4 ADF IMAGE ADJUSTMENT ....................................................3-191
Registration.......................................................................................3-191
3.19 TOUCH SCREEN CALIBRATION ....................................................3-192
TROUBLESHOOTING
4. TROUBLESHOOTING ................................................................. 4-1
4.1 PROGRAM DOWNLOAD ...........................................................................4-1
4.1.1 OVERVIEW .......................................................................................4-1
4.1.2 RECOVERY METHODS ...................................................................4-1
4.1.3 DOWNLOAD ERROR CODES..........................................................4-2
4.1.4 PAPER JAM CODES ........................................................................4-5
Copier B234/B235/B236 .......................................................................4-6
Paper Jam Locations - Finisher B830 ..................................................4-7
Cover Interposer Tray B835..................................................................4-7
Booklet Finisher B836...........................................................................4-8
Paper Jam Locations - Z-Fold Unit B660 .............................................4-8
4.2 SERVICE CALL CONDITIONS ..................................................................4-9
4.2.1 SERVICE MODE LOCK/UNLOCK ....................................................4-9
4.2.2 SERIES SERVICE CALL CONDITIONS .........................................4-10
4.2.3 SC CODE DESCRIPTIONS ............................................................4-11
4.2.4 SC CODE DESCRIPTIONS ............................................................4-13
4.2.5 PSU PROTECTION CIRCUITS.....................................................4-109
Overview...........................................................................................4-109
AC Input Module ...............................................................................4-111
Converter Control Module.................................................................4-112
Output Module ..................................................................................4-113
PSU LED Display..............................................................................4-114
SM ix B234/B235/B236/D101/D102/D103