Ricoh B079 - Page 15

SM iii B079/B082
3.9.8 SCANNER MOTOR.........................................................................3-15
3.9.9 LAMP STABILIZER AND SCANNER MOTOR DRIVE BOARD ......3-16
3.9.10 SCANNER WIRE...........................................................................3-17
3.10 LASER UNIT ..........................................................................................3-21
3.10.1 CAUTION DECAL LOCATIONS ....................................................3-21
3.10.2 LASER UNIT..................................................................................3-22
3.10.3 POLYGON MIRROR MOTOR .......................................................3-24
3.10.4 LASER SYNCHRONIZATION DETECTOR...................................3-25
3.10.5 LD UNIT.........................................................................................3-25
Laser beam pitch adjustment..............................................................3-26
3.11 PHOTOCONDUCTOR UNIT (PCU) .......................................................3-27
3.11.1 PCU ...............................................................................................3-27
3.11.2 DRUM............................................................................................3-28
3.11.3 PICK-OFF PAWLS ........................................................................3-30
Pick-off pawl position adjustment........................................................3-30
3.11.4 CHARGE ROLLER AND CLEANING ROLLER .............................3-31
3.11.5 DRUM CLEANING BLADE 2 .........................................................3-32
3.11.6 DRUM CLEANING BLADE 1 .........................................................3-33
3.12 DEVELOPMENT ....................................................................................3-34
3.12.1 DEVELOPMENT UNIT ..................................................................3-34
3.12.2 DEVELOPMENT FILTER ..............................................................3-35
3.12.3 DEVELOPMENT ROLLER ............................................................3-35
3.12.4 DEVELOPER.................................................................................3-36
3.12.5 TD SENSOR..................................................................................3-38
3.13 TRANSFER UNIT...................................................................................3-39
3.13.1 TRANSFER BELT UNIT ................................................................3-39
3.13.2 TRANSFER BELT .........................................................................3-40
3.13.3 TRANSFER BELT CLEANING BLADE AND TONER
OVERFLOW SENSOR..................................................................3-41
3.14 PAPER FEED.........................................................................................3-42
3.14.1 PICK-UP, SEPARATION, AND FEED ROLLERS .........................3-42
3.14.2 LOWER RIGHT COVER................................................................3-43
3.14.3 RELAY/UPPER PAPER FEED AND LOWER PAPER FEED
CLUTCHES ...................................................................................3-44
3.14.4 UPPER PAPER FEED UNIT FOR TRAY 1 ...................................3-45
3.14.5 LOWER PAPER FEED UNIT FOR TRAY 2...................................3-46
3.14.6 PAPER END/PAPER HEIGHT/RELAY SENSORS .......................3-47
3.14.7 REGISTRATION SENSOR............................................................3-48
3.14.8 TRAY LIFT MOTOR ......................................................................3-50
3.14.9 FEED/DEVELOPMENT MOTOR...................................................3-51
3.15 FUSING UNIT.........................................................................................3-52
3.15.1 FUSING UNIT REMOVAL .............................................................3-52
3.15.2 FUSING UNIT EXIT GUIDE...........................................................3-53
3.15.3 HOT ROLLER STRIPPERS...........................................................3-53
3.15.4 FUSING LAMPS ............................................................................3-54
3.15.5 THERMISTORS AND THERMOSTATS ........................................3-56
3.15.6 FUSING ROLLER/PRESSURE ROLLER......................................3-57
3.15.7 FUSING UNIT SIDE FAN ..............................................................3-59
3.15.8 FUSING UNIT CORNER FAN .......................................................3-61
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