Vertical Black Line and Band
Cause and Check Point Solution
Check if the surface of the charge roller is scratched or
contaminated.
Replace the toner cartridge and test again
Check if there are grooves or damage to the OPC
drum.
Replace the toner cartridge and test again
Check if the cleaning blade is damaged Replace the toner cartridge and test again
Is the charge roller of PTB unit damaged?
Clean the charge roller of PTB unit, or replace the PTB
unit.
Check if paper transfer belt is damaged or
contaminated.
Replace the PTB unit and test again.
Is the Slit Glass for document processing by the DADF
contaminated.
Clean the Slit Glass area with Glass Cleaner, remove/
scratch off any contaminant that maybe on the glass.
Description
1. Straight thin vertical black lines occur in the printed image
2. Dark black vertical bands occurs in the printed image
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