21. Image quality problem Field Service Ver. 1.0 Aug. 2005
258
bizhub 200/250/350
Troubleshooting
21.3.6 Scanner System: White streaks or bands
A. Typical Faulty Images
B. Troubleshooting Procedure
4036fs4021c0
4036fs4022c0
Step Section Check Item Result Action
1 Original Original is damaged or dirty. YES Change original.
2 Original Cover Original Pad is dirty. YES Clean.
3 Original Cover does not lie flat. YES Replace Original Cover if
it is deformed or the
hinges are broken.
4 Shading Sheet Shading sheet is dirty. YES Clean.
5 Mirrors/Lens/
Original Glass/
Reflectors
Mirrors, lens, Original Glass and/or
reflectors are dirty.
YES Clean.
6 Exposure Lamp Exposure Lamp is dirty. YES Clean.
Change Exposure Lamp.
7 BCRS Board The problem has been eliminated after
performing step 6.
NO Change the Jumper
Switch Setting on the
BCRS Board.
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8 The white lines or bands are blurry or
opaque.
YES Change Exposure Unit.
Change CCD Unit.
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