Xerox 5400N - Phaser B/W Laser Printer, Service Quick Reference Manual

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202 Phaser 5400 Laser Printer Service Guide
RAP 81 Uneven Density
Image Density varies within the page in either
direction.
Figure 29 Uneven Density
Table 112 Uneven Density Troubleshooting Procedure
Step Actions and Questions Yes No
1 INITIAL ACTIONS
■
Load fresh, dry paper.
■
Check that the correct Print Cartridge is properly
installed and not empty.
■
Ensure that the machine is reasonably level.
■
Check to make sure the laser path is clean and
unobstructed.
■
Remove the Print Cartridge and check the Left and
Right Guide for wear, contamination, obstructions, etc.
■
Clean the laser window.
2 TEST PRINT
Run a Test Print.
Does the Test Print image contain uneven print?
Go to
Step 3. There is no
problem with
the printer.
Check the
customer’s
application.
3 PRINT CARTRIDGE REPLACEMENT
1. Install a new Print Cartridge.
2. Run a Test Print.
Does the Test Print image contain uneven print?
Go to
Step 4. Problem
solved.
4 BIAS TRANSFER ROLLER INSPECTION
Inspect the BTR Assembly for contamination and wear.
Is the BTR free of contamination and wear?
Go to
Step 5. Replace the
BTR
Assembly
[RRP 7.6,
page 304 ].
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