Field Service Ver. 1.0 Aug. 2005 21. Image quality problem
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Troubleshooting
21. Image quality problem
21.1 How to identify problematic part
• This chapter is divided into two parts: “Initial Check Items” and “Troubleshooting Proce-
dure by a Particular Image Quality Problem.”
• When an image quality problem occurs, first go through the “Initial Check Items” and, if
the cause is yet to be identified, go to “Troubleshooting Procedure by a Particular Image
Quality Problem.”
21.2 Initial Check Items
21.2.1 Initial Check Items 1
• Determine if the failure is attributable to a basic cause or causes.
Section Step Check Item Result Action
Paper
1 Recommended paper is used. NO Instruct user.
2 Paper is damp. YES
Replace paper.
Instruct user on
proper paper storage.
Original
3 Original not flat. YES Correct
4 Faint original (light pencil, etc.) YES Instruct user.
5
Highly transparent original (OHP transparencies,
etc.)
YES Instruct user.
6 Dirty or scratched Original Glass. YES Clean or Replace.
PM parts 7
PM parts relating to image formation have
reached the end of cleaning/replacement cycles.
YES Clean or Replace.
Adjustment
items
8
There are settings that can be readjusted to rem-
edy the image failure.
YES Readjust.
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