Ricoh C249, Service Manual

Page: 218 / 486

C264 ii SM
3.3.4 EXPOSURE LAMP (XENON LAMP) ................................................3-7
3.3.5 SCANNER WIRES ...........................................................................3-8
Installation.............................................................................................3-8
3.3.6 IMAGE ADJUSTMENT ...................................................................3-10
3.4 MASTER EJECT .....................................................................................3-11
3.4.1 MASTER EJECT UNIT ...................................................................3-11
3.5 MASTER FEED .......................................................................................3-12
3.5.1 MASTER MAKING UNIT ................................................................3-12
3.5.2 THERMAL HEAD............................................................................3-12
Installation...........................................................................................3-15
3.5.3 DUCT PLATE HP SENSOR / DUCT PLATE MOTOR....................3-16
3.5.4 CUTTER UNIT................................................................................3-17
3.5.5 THERMAL HEAD DRIVING UNIT ..................................................3-17
3.5.6 DUCT JAM SENSOR ADJUSTMENT ............................................3-18
3.5.7 MASTER EDGE SENSOR ADJUSTMENT ....................................3-19
3.5.8 2ND DRUM MASTER SENSOR ADJUSTMENT............................3-20
3.5.9 MASTER END SENSOR ADJUSTMENT .......................................3-21
3.5.10 THERMAL HEAD VOLTAGE ADJUSTMENT...............................3-22
3.6 PAPER FEED..........................................................................................3-23
3.6.1 PICK-UP ROLLER / PAPER FEED ROLLER / FRICTION PAD.....3-23
3.6.2 PAPER SEPARATION PRESSURE ADJUSTMENT......................3-23
3.6.3 PAPER WIDTH DETECTION BOARD ...........................................3-24
3.7 PRINTING ...............................................................................................3-25
3.7.1 PRESS ROLLER ............................................................................3-25
3.7.2 PRESS ROLLER RELEASE LEVER ADJUSTMENT .....................3-26
3.7.3 PRINTING PRESSURE ADJUSTMENT.........................................3-27
3.8 DRUM......................................................................................................3-28
3.8.1 PREPARATION..............................................................................3-28
3.8.2 CLOTH SCREEN............................................................................3-28
Installation...........................................................................................3-29
3.8.3 CLAMPER / METAL SCREEN .......................................................3-30
Installation...........................................................................................3-31
3.8.4 MYLAR SEAL .................................................................................3-32
3.8.5 INK PUMP ADJUSTMENT .............................................................3-33
3.8.6 INK ROLLER UNIT / INK ROLLER ONE-WAY CLUTCH ...............3-35
3.8.7 IDLING ROLLER MOTOR / IDLING ROLLER HP SENSOR..........3-36
3.8.8 DOCTOR ROLLER GAP ADJUSTMENT .......................................3-37
3.8.9 INK DETECTION ADJUSTMENT ...................................................3-38
3.8.10 MAIN MOTOR PULLEY POSITION..............................................3-38
3.8.11 MAIN DRIVE TIMING BELT ADJUSTMENT ................................3-39
3.9 PAPER DELIVERY..................................................................................3-40
3.9.1 PAPER DELIVERY UNIT ...............................................................3-40
3.9.2 FAN MOTOR, EXIT SENSOR ........................................................3-40
3.9.3 EXIT PAWL ADJUSTMENT ...........................................................3-41
Timing adjustment...............................................................................3-41
Clearance adjustment .........................................................................3-42
3.9.4 AIR PUMP ADJUSTMENT .............................................................3-43
3.9.5 CHOCKS ........................................................................................3-44
3.10 SPECIAL TOOLS ............................................................................3-45