Samsung CLP-770ND Service Manual page 90

Alignment & Troubleshooting
Repetitive defect Image check page
Print this page. Align the start line on this page with the printed defect image, and measure to the next
occurrence of the defect to determine which roller, drum, or belt causes the defect.
Start line
PTB Charge roller
Deve Roller (K)
Deve Roller (CMY)
Supply Roller (K)
Transfer Roller
Supply Roller (CMY)
OPC Drum
Pressure roller
Fuser belt
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Service Manual
Samsung Electronics