Ricoh LDD280 Service Manual page 16

POSITION SENSORS 1, 2 ...........................................................3-92
3.9.12 LOWER REGISTRATION ROLLER .............................................3-93
3.9.13 REGISTRATION ROLLER LIFTING CAM POSITION
ADJUSTMENT..............................................................................3-94
3.9.14 DOUBLE FEED SENSOR ADJUSTMENT ...................................3-95
3.9.15 TIMING BELT TENSION ADJUSTMENT FOR THE
PAPER FEED MOTOR.................................................................3-96
3.9.16 TIMING BELT TENSION ADJUSTMENT FOR THE
REGISTRATION MOTOR ............................................................3-97
3.9.17 PAPER FEED AND SEPARATION PRESSURE ADJUSTMENT ......3-98
Paper feed pressure adjustment .........................................................3-98
Paper separation pressure adjustment ...............................................3-98
3.9.18 PAPER FEED LENGTH ADJUSTMENT ......................................3-99
Paper Feed Motor Stop Timing Adjustment ........................................3-99
Paper Clamping Timing Adjustment..................................................3-100
3.10 PRINTING SECTION ..........................................................................3-101
3.10.1 PRESSURE CYLINDER, PAPER CLAMPER ............................3-101
Removal procedure...........................................................................3-101
Reinstallation procedure ...................................................................3-104
3.10.2 FEED ENCODER, FEED START SENSOR, FEED ENCODER
HARNESS, FEED ENCODER CLEANING BRUSH...............................3-107
3.10.3 1ST DRUM MASTER SENSOR .................................................3-110
3.10.4 1ST DRUM MASTER SENSOR GUIDE ADJUSTMENT ............3-111
3.10.5 PRINTING PRESSURE HP SENSOR, PRINTING PRESSURE
POSITION SENSOR, PRESSURE CAM SHIFT MOTOR........................3-112
3.10.6 PRINTING PRESSURE ADJUSTMENT.....................................3-113
3.10.7 PRINTING PRESSURE RELEASE ARM GAP ADJUSTMENT .......3-113
3.11 MAIN DRIVE AND IMAGE UP/DOWN SHIFTING DRIVE SECTION..3-114
3.11.1 MAIN MOTOR AND TORQUE LIMITER ....................................3-114
3.11.2 MAIN DRIVE MECHANISM (MAIN DRIVE TIMING BELT) ........3-122
Disassembly Procedure ....................................................................3-122
Reassembly Procedure.....................................................................3-127
Copy Image Check Procedure after Main Drive and Image Up/Down
Shifting Drive Section Re-assembly..................................................3-138
3.11.3 SCISSORS GEAR ......................................................................3-139
3.11.4 PRESSURE CYLINDER ROTATION KNOB ADJUSTMENT .....3-143
3.11.5 SCISSORS GEAR POSITION ADJUSEMENT...........................3-144
3.11.6 IMAGE UP/DOWN SHIFT WORM-GEAR POSITION
ADJUSEMENT ...........................................................................3-144
3.11.7 IMAGE UP/DOWN SHIFT DRIVE UNIT POSITION
ADJUSEMENT ...........................................................................3-145
3.11.8 IMAGE SHIFT GEAR PRESSURE ADJUSEMENT....................3-146
3.12 PAPER DELIVERY SECTION.............................................................3-148
3.12.1 PAPER EXIT PAWL ...................................................................3-148
3.12.2 PAPER DELIVERY UNIT, AIR KNIFE FAN UNIT,
PAPER PICK-OFF PLATE .........................................................3-149
3.12.3 JOB SEPARATOR UNIT, PRINTING PRESSURE CAM
SHIFT UNIT................................................................................3-151
3.12.4 PAPER EXIT SENSOR, TRANSPORT VACUUM FAN,
C262/C265 iv SM