Samsung ML-1665 Service Manual - Page 72

Bad image, Vertical Black Line and Band

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Alignment and Troubleshooting 4.2.4 Bad image 1) Vertical Black Line and Band Description : 1 . Straight thin black vertical line occurs in the printing. 2. Dark black vertical band occur in the printing. 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. 2. Scratched surface of the charge roller in the toner cartridge. Replace the transfer roller if occurred as No. 3. 3. Partly depression or deformation on the surface of the transfer roller. Service Manual 4-24 Samsung Electronics

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Alignment and Troubleshooting
Service Manual
4-24
Samsung Electronics
4.2.4 Bad image
1) Vertical Black Line and Band
Description :
1. Straight thin black vertical line occurs in the printing.
2. Dark black vertical band occur in the printing.
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.