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Xerox Phaser 4600 Service Manual

Xerox Phaser 4600
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04/2016
3-17
Phaser 4600/4620/4622 Printer Service Manual
IQ15
3 Image Quality
Revised
IQ15 Background
There is toner contamination on all or part of the page. The contamination appears as a very
light gray dusting.
WARNING
Switch off the electricity to the machine. Disconnect the power cord from the customer
supply while performing tasks that do not need electricity. Electricity can cause death or
injury. Moving parts can cause injury.
Initial Actions
• Check media type settings are correct.
• Check that the paper is clean, dry, and meets specifications.
• Verify the Toner Cartridge is a Xerox manufactured part with adaquate life remaining. If a
non-Xerox Toner Cartridge is being used, this could be the problem.
• Check that the Drum Cartridge contacts are clean.
• Ensure the covers are in place and no outside light enters the printer.
Figure 1 Background defect example
Procedure
Check the paper condition. Load new, dry recommended paper, and print a test print. The
image includes background defects.
YN
Perform SCP 6 Final Actions.
Remove the Drum Cartridge, clean the electrical contacts, then print a test print. The image
includes background defects.
YN
Perform SCP 6 Final Actions.
Replace the Drum Catridge and reprint the test print. The image includes background
defects.
YN
Perform SCP 6 Final Actions.
Remove the Transfer Roller and check for surface contamination or excessive wear. The
Transfer Roller is good.
YN
Replace the Transfer Roller, REP 9.1.
Print a test print. While the print is printing, turn off system power. Remove the Drum Cartridge
and check the image formed on the drum right before the Transfer Roller. The image is
poorly forrmed, faint and difficult to read.
YN
Check the image formed on the drum, right after the Transfer Roller. The image is com-
pletely transferred to the paper
YN
Replace the Transfer Roller, REP 9.1.
Continue with the procedure.
Replace the HVPS, REP 1.4, and print a test print. The image includes background
defects.
YN
Perform SCP 6 Final Actions.
Replace the MCU Board, REP 3.4. The image includes background defects.
YN
Perform SCP 6 Final Actions.
Replace the IP Board.

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Xerox Phaser 4600 Specifications

General IconGeneral
BrandXerox
ModelPhaser 4600
CategoryPrinter
LanguageEnglish

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