Non-Uniform Image Quality - Xerox DOCUPRINT N17 Service Manual

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7.5.4 Non-Uniform Image Quality

The line darkness and solid area density image varies across the print.

NOTE: If the problem has not been resolved after completing this RAP, go to RAP 7.5.7 Vertical Band

Initial Actions

Remove the EP Cartridge and gently rock it back and forth to distribute toner evenly in

cartridge. Reinstall the cartridge.

Ensure the grounding pin on the EP Cartridge is in proper contact with the Earth Plate

1 Generate five prints of the System Controller Test Pattern from Tray 1. Image Quality varies from

inboard to outboard.

Y: Go to step 3.

N: Go to step 2.

2 Image quality varies from lead edge to trail edge.

Y: Replace the HVPS.

N: Return to RAP 7.5.1 Image Quality Entry Flowchart.

3 Do the following:

Inspect the Bias Transfer Roll for contamination. Clean or replace the EP Cartridge.

Inspect the Photoreceptor for deterioration and/or contamination. Replace the EP Cartridge.

Check for laser beam obstructions such as dust or lint fibers between the Laser Assembly

and the EP Cartridge.

Perform the procedure for Light Prints, RAP 7.5.9 Light Prints .

Repair Analysis Procedures (RAPs)

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Xerox DocuPrint N17 Service Manual

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