Ricoh D025 Service Manual page 21

4.11.13
When Reinstalling the Fan ..........................................................4-113
4.11.14
4.12 PAPER FEED..............................................................................4-116
4.12.1 PAPER FEED UNIT ...........................................................4-116
4.12.2 PICK-UP, FEED AND SEPARATION ROLLERS ...............4-117
Tray 1 and Tray 2 ........................................................................4-117
4.12.3 TRAY LIFT MOTOR ...........................................................4-118
4.12.4 VERTICAL TRANSPORT, PAPER OVERFLOW
AND PAPER END SENSOR ..............................................4-119
4.12.5 REGISTRATION SENSOR ................................................4-120
4.12.6 BY-PASS PAPER SIZE SENSOR AND BY-
PASS PAPER LENGTH SENSOR .....................................4-121
When reinstalling the by-pass paper size sensor ........................4-122
4.12.7 BY-PASS BOTTOM TRAY .................................................4-123
4.12.8 BY-PASS PAPER END SENSOR ......................................4-126
4.12.9 BY-PASS PICK-UP, FEED AND SEPARATION ROLLER,
TORQUE LIMITER............................................................................4-127
4.12.10
4.12.11
4.12.12
4.13 DUPLEX UNIT.............................................................................4-132
4.13.1 DUPLEX UNIT....................................................................4-132
4.13.2 DUPLEX DOOR SENSOR .................................................4-134
4.13.3 DUPLEX ENTRANCE SENSOR ........................................4-134
4.13.4 DUPLEX EXIT SENSOR ....................................................4-135
4.14 ELECTRICAL COMPONENTS....................................................4-136
4.14.1 BOARDS ............................................................................4-136
4.14.2 CONTROLLER UNIT .........................................................4-139
4.14.3 CONTROLLER BOX RIGHT COVER ................................4-140
4.14.4 CONTROLLER BOX ..........................................................4-140
When opening the controller box.................................................4-140
When removing the controller box...............................................4-141
4.14.5 IOB (IN/OUT BOARD) ........................................................4-143
4.14.6 BICU...................................................................................4-144
SM
FUSING/PAPER EXIT FAN ............................................4-113
THERMOPILE ................................................................4-114
BY-PASS FEED CLUTCH ..............................................4-128
PAPER EXIT UNIT .........................................................4-129
FUSING EXIT, PAPER OVERFLOW, JUNCTION
PAPER JAM AND PAPER EXIT SENSOR .....................4-130
ix D023/D025