Copy Problems; Black Copy - Dell 1815 Mono Laser Service Manual

7.5 Copy Problems

7.5.1 White Copy
Blank page is printed out when copy.
• Description
Check and Cause
1. Check the Scan-Cover open.
2. Check shading profile.
3. Check white/black reference voltage in Main PBA.

7.5.2 Black Copy

Black page is printed out when Copy.
• Description
Check and Cause
1. Check the CCD problem in Main PBA.
2. Check shading profile.
Solution
1. Room light ca transit a thin original.
2. Remake shading profile in the tech mode.
3. Replace U60 if it is defective.
• U60-154 = 0.5V
• U60-155 = 3.3V
Solution
1. Check the CCD harness contact.
2. Remake shading profile in the tech mode.
Troubleshooting
Service Manual
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