Service manual

SM iii G130/G131
Tray 1 and Tray 2 ...............................................................................3-23
By-pass Tray.......................................................................................3-23
3.8.2 PAPER WIDTH DETECTION BOARD ...........................................3-25
3.8.3 VERTICAL TRANSPORT SENSOR...............................................3-26
3.8.4 RIGHT DOOR UNIT .......................................................................3-26
3.8.5 REGISTRATION SENSOR AND RELAY SENSORS .....................3-27
3.8.6 PAPER FEED CLUTCHES.............................................................3-27
3.8.7 BY-PASS FEED CLUTCH ..............................................................3-28
3.8.8 TRAY LIFT MOTOR .......................................................................3-28
3.8.9 PAPER FEED MOTOR...................................................................3-29
3.9 TRANSFER AND PAPER TRANSPORT UNIT .......................................3-30
3.9.1 TRANSFER UNIT...........................................................................3-30
3.9.2 TRANSFER BELT CLEANING UNIT..............................................3-31
3.9.3 CLEANING BLADE AND CLEANING ROLLER .............................3-32
3.9.4 TRANSFER BELT ..........................................................................3-34
When you reinstall the transfer belt ....................................................3-35
3.9.5 TRANSFER UNIT DRIVE MOTOR.................................................3-36
3.10 ID SENSORS ........................................................................................3-37
3.11 FUSING.................................................................................................3-38
3.11.1 FUSING UNIT...............................................................................3-38
3.11.2 UPPER COVER............................................................................3-39
3.11.3 THERMOSTAT AND HEATING ROLLER THERMISTOR............3-40
3.11.4 PRESSURE ROLLER THERMISTOR AND FUSE .......................3-41
Reassembling .....................................................................................3-41
3.11.5 HEATING ROLLER LAMP AND PRESSURE ROLLER LAMP ....3-42
3.11.6 FUSING BELT UNIT.....................................................................3-43
3.11.7 HOT ROLLER AND HEATING ROLLER ......................................3-44
Reassembling .....................................................................................3-44
3.11.8 UPPER PAPER GUIDE PLATE AND STRIPPER PAWLS...........3-45
3.11.9 LOWER PAPER GUIDE PLATE AND STRIPPER PAWLS..........3-46
3.11.10 CLEANING ROLLER AND OIL SUPPLY ROLLER ....................3-47
3.11.11 PRESSURE ROLLER.................................................................3-48
Reassembling .....................................................................................3-48
3.11.12 DRIVE GEAR .............................................................................3-48
3.11.13 FUSING UNIT FAN.....................................................................3-49
3.11.14 PAPER EXIT ..............................................................................3-50
3.12 ELECTRICAL COMPONENTS..............................................................3-51
3.12.1 MOVING THE CONTROLLER BOX OUT OF THE WAY .............3-51
3.12.2 MOVING THE HIGH VOLTAGE SUPPLY UNIT - C,
B OUT OF THE WAY...................................................................3-52
3.12.3 CONTROLLER, IPU, AND BCU ...................................................3-52
3.12.4 HDD..............................................................................................3-54
3.12.5 NVRAM REPLACEMENT PROCEDURE .....................................3-55
NVRAM on the BCU ...........................................................................3-55
NVRAM on the Controller ...................................................................3-56
3.12.6 REMOVING THE HIGH VOLTAGE SUPPLY BOARD - C, B .......3-57
3.12.7 SUB POWER SUPPLY UNIT .......................................................3-57
3.12.8 PSU ..............................................................................................3-58
3.12.9 CIRCUIT BREAKER AND PSU FAN ............................................3-58