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CONTENTS
CHAPTER 1 MAINTENANCE AND INSPECTION
A.
Periodically Replaced Parts .........1-1
B.
Durables.......................................1-1
C. Periodical Servicing .....................1-1
D. Notes on Cartridge.......................1-2
1.
Storing Sealed Cartridges.......1-2
2.
Storing and Handling Unsealed
Cartridges ...............................1-3
E.
Image Adjustment Basic Procedure
.....................................................1-5
F.
Points to Note ..............................1-6
CHAPTER 2 STANDARDS AND ADJUSTMENTS
A.
Mechanical...................................2-1
1.
Image Leading Edge Non-Image
Width (position of white paint on
back of glass)..........................2-1
2.
Image Leading Edge Margin
(point of detection for registration)
................................................2-1
B.
Electrical ......................................2-2
1.
Adjusting the Intensity (VR604)
................................................2-2
2.
Adjusting the AE Mechanism
(VR602, VR603) .....................2-4
CHAPTER 3 IMAGE TROUBLESHOOTING
A.
Making Initial Checks ...................3-1
1.
Site Environment ....................3-1
2.
Checking the Documents........3-1
3.
Checking the Copyboard Cover
and Copyboard Glass for Dirt
and Scratches .........................3-2
4.
Checking the Lens Array for Dirt
................................................3-2
5.
Checking the Transfer Charging
Roller ......................................3-2
6.
Checking the Feeding Assembly
................................................3-2
7.
Checking the Copy Paper .......3-2
8.
Checking the Durables ...........3-2
9.
Others .....................................3-4
B.
Samples of Image Faults .............3-6
C. Troubleshooting by Image Fault
.....................................................3-7
1.
The copy is too light (halftone
areas only). .............................3-7
2.
The copy is too light (dark areas
as well)....................................3-7
3.
The copy is too light (extremely
light overall). ...........................3-7
4.
The copy has uneven density
(darker at front). ......................3-8
5.
The copy has uneven density
(lighter at front). ......................3-8
6.
The copy is foggy (overall)......3-8
7.
The copy is foggy (paper feed
direction). ................................3-9
8.
The copy has dark lines (paper
feed direction, relatively narrow).
................................................3-9
9.
The copy has dark lines (paper
feed direction, thin). ................3-9
10. The copy has white spots (paper
feed direction). ........................3-9
11. The copy has white lines (paper
feed direction). ........................3-9
12. The copy has white spots (cross
feed direction). ......................3-10
13. The back of the copy is soiled.
..............................................3-10
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