Scanned Copy Quality Problems - Panasonic UF-6300 Service Manual

4.4.16. Scanned Copy Quality Problems

Is the LED Array abnormal?
Are there any foreign particles, or
paper pieces in the scanning area?
Is the scanning area dirty?
Are the Transmitting Rollers
dirty?
Is the Scanner Assembly abnormal?
START
No
No
No
No
No
END
Yes
Replace the LED Array.
Yes
Remove the foreign particles, or paper
pieces from the scanning area.
Yes
1. Clean the Scanning Glass (Sect. 2.2.4.).
2. Clean Mirrors 1, 2, and 3 (Sect. 2.2.8.).
Yes
Clean the rollers (Sect. 2.2.4.).
Yes
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).
109