Ricoh G188 Service Manual page 17

When installing the paper exit fan .......................................................4-81
4.10.13
When installing the IH inverter fan ......................................................4-81
4.10.14
When cleaning the lens of the thermopile ...........................................4-83
4.10.15
4.10.16
4.10.17
4.11 PAPER FEED .....................................................................................4-89
4.11.1 PAPER FEED UNIT...................................................................4-89
4.11.2 PICK-UP, FEED AND SEPARATION ROLLERS.......................4-90
Tray 1 and Tray 2 ...............................................................................4-90
4.11.3 TRAY LIFT MOTOR...................................................................4-90
4.11.4 VERTICAL TRANSPORT, PAPER OVERFLOW, PAPER END
AND PAPER FEED SENSORS................................................................4-91
4.11.5 REGISTRATION SENSOR........................................................4-92
4.11.6 BY-PASS PAPER SIZE SENSOR AND BY-PASS PAPER
LENGTH SENSOR ...................................................................................4-92
When reinstalling this switch...............................................................4-93
4.11.7 BY-PASS BOTTOM TRAY ........................................................4-94
4.11.8 BY-PASS PAPER END SENSOR..............................................4-96
4.11.9 BY-PASS PICK-UP, FEED AND SEPARATION ROLLER,
TORQUE LIMITER ...................................................................................4-97
4.11.10
4.11.11
4.11.12
AND PAPER EXIT SENSORS .................................................................4-99
4.12 DUPLEX UNIT ..................................................................................4-100
4.12.1 DUPLEX UNIT .........................................................................4-100
4.12.2 DUPLEX DOOR SENSOR.......................................................4-101
4.12.3 DUPLEX ENTRANCE SENSOR..............................................4-102
4.12.4 DUPLEX EXIT SENSOR .........................................................4-102
4.13 ELECTRICAL COMPONENTS .........................................................4-104
4.13.1 CONTROLLER UNIT ...............................................................4-104
4.13.2 CONTROLLER BOX RIGHT COVER ......................................4-104
4.13.3 CONTROLLER BOX................................................................4-104
When opening the controller box ......................................................4-104
When removing the controller box ....................................................4-105
4.13.4 IOB (IN/OUT BOARD) .............................................................4-106
4.13.5 BCU .........................................................................................4-107
When installing the new BCU ...........................................................4-107
4.13.6 PSU .........................................................................................4-108
PSU bracket......................................................................................4-108
PSU board ........................................................................................4-108
4.13.7 ITB POWER SUPPLY BOARD ................................................4-109
4.13.8 HIGH VOLTAGE SUPPLY BOARD .........................................4-109
4.13.9 HIGH VOLTAGE SUPPLY BOARD BRACKET .......................4-110
4.13.10
4.13.11
SM
IH (INDUCTION HEATING) INVERTER FAN ........................4-81
THERMOPILE ........................................................................4-81
PRESSURE ROLLER HP SENSOR ......................................4-84
IH COIL FAN ..........................................................................4-85
IH COIL UNIT .........................................................................4-86
BY-PASS FEED CLUTCH......................................................4-98
PAPER EXIT UNIT.................................................................4-98
FUSING EXIT, PAPER OVERFLOW, JUNCTION PAPER JAM
IH INVERTER.......................................................................4-110
CONTROLLER BOARD .......................................................4-111
v G188/G189