Service Manual
Alignment & Troubleshooting
4-42
Samsung Electronics
4.2.5 Bad image
1) Vertical Black Line and Band
• Description
1. Straight thin black vertical lines are shown in the print-out.
2. Dark black vertical bands are shown in the print-out.
3. Partly depression or
deformation on the surface of
the transfer roller.
2. Scratched surface of
the charge roller in the toner cartridge.
1. Damaged develop roller in
the Toner cartridge. Deformed Doctor-blade
or cleaning-blade.
If causes 1 and 2 occur in the
toner cartridge, replace the toner
cartridge and try to print out.
Replace the transfer roller if
occurred as No. 3.
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