4510-001
2. Diagnostic Aids
Print Quality
Vertical Black Line and Band
Description:
1. Straight thin black vertical line
2. Dark black vertical bands
Possible causes:
•
Toner cartridge failure
•
Foreign material between transfer/
charge/development rollers
•
Deformed transfer roller
Vertical White Line
Description: White vertical voids
Possible causes:
•
Toner cartridge failure
•
Printhead failure
•
Fuser failure
Horizontal Black Band
Description: Dark or blurry horizontal stripes
Possible causes:
•
Toner cartridge failure
•
Bad or dirty voltage contacts
Diagnostic Aids
2-1