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4.4.16.
Scanned Copy Quality Problems
START
No
Yes
Is the LED Array abnormal?
Replace the LED Array.
END
Are the Transmitting Rollers
dirty?
dirty?
Are there any foreign particles or
paper pieces in the scanning area?
paper pieces in the scanning area?
Yes
No
Remove the foreign particles or paper
pieces from the scanning area.
pieces from the scanning area.
No
Yes
Is the scanning area dirty?
1. Clean the Scanning Glass (Sect. 2.2.4.).
2. Clean Mirrors 1, 2 and 3 (Sect. 2.2.8.).
2. Clean Mirrors 1, 2 and 3 (Sect. 2.2.8.).
No
Yes
Clean the rollers (Sect. 2.2.4.).
Is the Scanner Assembly abnormal?
1. Check CN7 (SC PCB).
2. Check CN30 (CCD PCB).
3. Replace the Scanner Block (321) (Sect. 2.2.8.).
4. Replace the SC PCB (Sect. 2.2.10).
2. Check CN30 (CCD PCB).
3. Replace the Scanner Block (321) (Sect. 2.2.8.).
4. Replace the SC PCB (Sect. 2.2.10).
Yes
No
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