Field Service Ver. 1.0 Aug. 2005 21. Image quality problem
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Troubleshooting
21.3 Solution
21.3.1 Scanner System: Blank copy or black copy
A. Typical Faulty Images
B. Troubleshooting Procedure
4036fs4038c0 4036fs4039c0
Blank copy Black copy
Step Section Check Item Result Action
1 PWBs and Con-
nection Cables
Connectors are securely connected with
no bent pins and no breaks in the con-
nection cables.
NO Reconnect.
Replace the connection
cable.
2 Exposure Unit The Exposure Lamp comes on. NO Change Exposure Lamp.
Change Exposure Unit.
3 Inverter Board Connectors on the Inverter Board are
connected properly.
NO Reconnect.
4 The problem has been eliminated after
performing step 3.
NO Change Inverter Board.
5 BCRS Board Connectors on the BCRS Board are
connected properly.
NO Reconnect.
6 The problem has been eliminated after
performing step 5.
NO Change BCRS Board.
7 MFBS Board Connectors on the MFBS Board are
connected properly.
NO Reconnect.
8 The problem has been eliminated after
performing step 7.
NO Change MFBS Board.
9 CCD Unit Connectors on the CCD Unit Board are
connected properly.
NO Reconnect.
10 The problem has been eliminated after
performing step 9.
NO Change CCD Unit.