Kyocera KM-1650 Service Manual page 13

1-6 Assembly and Disassembly
1-6-1 Precautions for assembly and disassembly............................................................................................1-6-1
(1) Precautions .......................................................................................................................................1-6-1
(2) Running a maintenance item.............................................................................................................1-6-2
1-6-2 Paper feed section ..................................................................................................................................1-6-3
(1) Detaching and refitting the separation pulley ....................................................................................1-6-3
(2) Detaching and refitting the forwarding pulley and paper feed pulley.................................................1-6-5
(3) Detaching and refitting the feed roller (20 ppm model only)..............................................................1-6-7
(4) Detaching and refitting the drawer separation pulley (20 ppm model only) ......................................1-6-8
(5) Detaching and refitting the drawer forwarding pulley and drawer paper feed pulley
(20 ppm model only)..........................................................................................................................1-6-9
(6) Detaching and refitting the paper conveying unit ............................................................................1-6-11
(7) Detaching and refitting the bypass paper feed pulley and bypass separation pad .........................1-6-13
(8) Detaching and refitting the registration left roller.............................................................................1-6-15
(9) Detaching and refitting the registration cleaner...............................................................................1-6-15
(10) Adjustment after roller and clutch replacement ...............................................................................1-6-16
(10-1) Adjusting the leading edge registration of image printing........................................................1-6-16
(10-2) Adjusting the leading edge registration for memory image printing ........................................1-6-17
(10-3) Adjusting the center line of image printing ..............................................................................1-6-18
(10-4) Adjusting the trailing edge margin of image printing ...............................................................1-6-19
(10-5) Adjusting the margins for printing............................................................................................1-6-20
(10-6) Adjusting the amount of slack in the paper .............................................................................1-6-21
1-6-3 Optical section ......................................................................................................................................1-6-22
(1) Detaching and refitting the exposure lamp......................................................................................1-6-22
(2) Detaching and refitting the scanner wires .......................................................................................1-6-23
(2-1) Detaching the scanner wires ...................................................................................................1-6-23
(2-2) Fitting the scanner wires .........................................................................................................1-6-25
(3) Detaching and refitting the ISU (reference).....................................................................................1-6-28
(4) Detaching and refitting the laser scanner unit .................................................................................1-6-29
(5) Adjusting the longitudinal squareness (reference) ..........................................................................1-6-32
(6) Adjusting magnification of the scanner in the main scanning direction ...........................................1-6-33
(7) Adjusting magnification of the scanner in the auxiliary scanning direction......................................1-6-34
(8) Adjusting the scanner leading edge registration .............................................................................1-6-35
(9) Adjusting the scanner center line ....................................................................................................1-6-36
(10) Adjusting the margins for scanning an original on the contact glass...............................................1-6-37
1-6-4 Drum section.........................................................................................................................................1-6-38
(1) Detaching and refitting the drum unit ..............................................................................................1-6-38
(2) Detaching and refitting the drum separation claws .........................................................................1-6-39
(3) Detaching and refitting the main charger unit..................................................................................1-6-40
1-6-5 Developing section................................................................................................................................1-6-41
(1) Detaching and refitting the developing unit .....................................................................................1-6-41
1-6-6 Transfer section ....................................................................................................................................1-6-42
(1) Detaching and refitting the transfer roller ........................................................................................1-6-42
1-6-7 Fixing section ........................................................................................................................................1-6-43
(1) Detaching and refitting the fixing unit ..............................................................................................1-6-43
(2) Detaching and refitting the press roller............................................................................................1-6-45
(3) Detaching and refitting the fixing heater M and S ...........................................................................1-6-46
(4) Detaching and refitting the heat roller separation claws..................................................................1-6-47
(5) Detaching and refitting the heat roller .............................................................................................1-6-48
(6) Detaching and refitting the fixing thermostat ...................................................................................1-6-49
(7) Detaching and refitting the fixing thermistor ....................................................................................1-6-49
(8) Adjusting the fixing unit height (adjusting lateral squareness) ........................................................1-6-50
1-7 Requirements on PWB Replacement
1-7-1 Upgrading the firmware on the main PCB ..............................................................................................1-7-1
1-7-2 Upgrading the printer board firmware .....................................................................................................1-7-2
1-7-3 Adjustment-free variable resistors (VR) ..................................................................................................1-7-3
1-7-4 Remarks on PCBs replacement..............................................................................................................1-7-3
2DA/2DB-1