Ricoh D124-17 Service Manual page 662

6. Troubleshooting
2. No image (solid black copy/print, or no image with only vertical white lines on the output)
Possible causes:
• Connection problem between CIS and IPU.
• CIS defective
3. Light image
Possible causes:
• Low CIS output
• IPU board defective
4. Vertical black lines
Possible causes:
• Dirty exposure glass
• CIS defective
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