1-1-3
2AV/X
(4) The scanner does not travel. ........................................................................................................ 1-5-30
(5) Multiple sheets of paper are fed at one time. ................................................................................. 1-5-30
(6) Paper jams. .................................................................................................................................. 1-5-30
(7) Toner drops on the paper conveying path. ................................................................................... 1-5-30
(8) Abnormal noise is heard. .............................................................................................................. 1-5-30
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 upper and lower paper feed pulleys .................................................... 1-6-3
(2) Detaching and refitting the bypass paper feed pulley ..................................................................... 1-6-6
(3) Detaching and refitting the left registration cleaner assembly ........................................................ 1-6-8
(4) Detaching and refitting the right registration cleaner assembly ...................................................... 1-6-8
(5) Detaching and refitting the bypass paper width switch ................................................................... 1-6-9
(6) Adjustment after roller and clutch replacement ............................................................................ 1-6-10
(6-1) Adjusting the leading edge registration of image printing .................................................... 1-6-10
(6-2) Adjusting the leading edge registration for memory image printing ..................................... 1-6-12
(6-3) Adjusting the center line of image printing ........................................................................... 1-6-13
(6-4) Adjusting the margins for printing ........................................................................................ 1-6-15
(6-5) Adjusting the amount of slack in the paper .......................................................................... 1-6-17
1-6-3 Optical section .................................................................................................................................... 1-6-19
(1) Detaching and refitting the exposure lamp ................................................................................... 1-6-19
(2) Detaching and refitting the scanner wires .................................................................................... 1-6-20
(2-1) Detaching the scanner wires ............................................................................................... 1-6-20
(2-2) Fitting the scanner wires ...................................................................................................... 1-6-21
(3) Detaching and refitting the laser scanner unit .............................................................................. 1-6-24
(4) Adjusting the skew and vertical shifting of the laser scanner unit ................................................ 1-6-26
(4-1) Adjusting the skew of the laser scanner unit ....................................................................... 1-6-26
(4-2) Adjusting the vertical shifting of the laser scanner unit ........................................................ 1-6-27
(5) Detaching and refitting the ISU (reference) .................................................................................. 1-6-28
(6) Adjusting the position of the ISU (reference) ................................................................................ 1-6-30
(7) Adjusting the longitudinal squareness (reference) ....................................................................... 1-6-31
(8) Adjusting magnification of the scanner in the main scanning direction ........................................ 1-6-32
(9) Adjusting magnification of the scanner in the auxiliary scanning direction ................................... 1-6-34
(10) Adjusting the scanner leading edge registration ........................................................................... 1-6-36
(11) Adjusting the scanner center line ................................................................................................. 1-6-37
(12) Adjusting the margins for scanning an original on the contact glass ............................................ 1-6-38
1-6-4 Main charging section ........................................................................................................................ 1-6-40
(1) Detaching and refitting the charger assembly .............................................................................. 1-6-40
(2) Replacing the tungsten wire (reference) ....................................................................................... 1-6-41
1-6-5 Drum section ...................................................................................................................................... 1-6-43
(1) Detaching and refitting the drum .................................................................................................. 1-6-43
1-6-6 Developing section ............................................................................................................................. 1-6-44
(1) Adjusting the position of the doctor blade (reference) .................................................................. 1-6-44
1-6-7 Transfer section ................................................................................................................................. 1-6-45
(1) Detaching and refitting the transfer roller assembly ..................................................................... 1-6-45
1-6-8 Cleaning section ................................................................................................................................. 1-6-46
(1) Detaching and refitting the cleaning blade ................................................................................... 1-6-46
(2) Detaching and refitting the drum separation claw assemblies ..................................................... 1-6-47
(3) Detaching and refitting the cleaning lower seal assembly ............................................................ 1-6-47
1-6-9 Fixing section ..................................................................................................................................... 1-6-48
(1) Detaching and refitting the fixing unit ........................................................................................... 1-6-48
(2) Detaching and refitting the fixing unit thermistor .......................................................................... 1-6-49
(3) Detaching and refitting the heat roller separation claws ............................................................... 1-6-49
(4) Detaching and refitting the fixing heater ....................................................................................... 1-6-50
(5) Detaching and refitting the heat roller ........................................................................................... 1-6-51
(6) Detaching and refitting the press roller ......................................................................................... 1-6-53
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