5/2011
3-15
Phaser 4600/4620 Printer Service Manual
IQ13
Image Quality
Revision - Xerox Internal Use Only
IQ13 Repeating Defects
Recurring marks, spots, lines, or voids.
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.
WARNING
Do not touch the Fuser while it is hot.
Initial Actions
• Check that the paper is clean, dry, and meets specifications.
• Inspect the paper path for items, such as staples, paper clips, and paper scraps.
• Check CRU life counts. Replace components at end of life.
Figure 1 Repeating defects example
Procedure
Check the media. The media is clean, of the approved type, and free of defects.
YN
Replace the media with approved media from a freshly opened package.
Check the media path for dirt, debris, or toner residue. The media path is clean.
YN
Clean the media path.
Print a test print and compare the defect to the values listed in Table 1. Replace the defective
component.
Xerographic Component Dimensions
The following table lists measurements of critical printer components. Refer to these measure-
ments when diagnosing a repeating print-quality problem.
Table 1 Xerographic Component Specifications
Component Circumference
OPC Drum (Drum Cartridge) 94.4 mm (3.7 inches)
Registration Roller 59.1 mm ( inches)
Feed Roller 47.1 mm (1.85 inches)
Nudger, Pick, Seperator Rollers 72.3 mm ( inches)
Tray 1 Pick Roller 47.1 mm (1.85 inches)
Fuser Heat Roller 155 mm (inches)
Duplex Roller 35.5 mm (1.4 inches)
Cleaning Roller (Drum Cartridge) 40.8 mm
Transfer Roller 57.8 mm
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General
Weight and Dimensions
