Print-Quality Troubleshooting 5-25
Vertical Streaks
Extraneous dark lines/bands in the scan direction.
Initial Actions
â– Check that the paper supply is dry and meets specifications.
â– Inspect the paper path for items, such as staples, paper clips, and paper
scraps.
â– Check the installation of the Drum Cartridge.
â– Check that the Drum Cartridge ground contacts are clean.
â– Inspect the paper path for contamination or obstructions.
Vertical Streaks Troubleshooting Reference
Applicable Parts Example Print
â– Drum Cartridge
â– Transfer Roller
â– Laser Assembly
â– Fuser
â– Image Processor Board
â– Engine Logic Board
Vertical Streaks Troubleshooting Procedure
Step Actions and Questions Yes No
1
Check paper condition.
1. Load new, dry paper.
2. Print a Test Print.
Does the problem still occur?
Go to Step 2. Problem solved.
2
Check the paper path.
Is the paper path clear?
Go to Step 3. Remove obstacles or
contamination.
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