5/2011
3-4
Phaser 4600/4620 Printer Service Manual
IQ1, IQ2
Revision - Xerox Internal Use Only
Image Quality
To print the test print:
1.
From the Main menu, scroll to Troubleshooting, then press the OK button.
2.
Scroll to Test Prints, then press the OK button.
3.
Select test print 1. Press OK to print.
IQ2 Deletions (line, band, spots)
Use this RAP to correct defects that appear as areas of image deletions.
Initial Actions
•
Check that the paper supply is dry and meets specifications.
•
Inspect the paper path for items, such as staples, paper clips, and paper scraps.
•
Check installation of the Drum Cartridge.
•
Check the Drum Cartridge contacts.
•
Check the Transfer Roller for contamination or wear.
•
Check that rollers and other media path components are clean and unobstructed.
•
If vertical lines of deletion appear, clean the Laser Unit window.
Figure 1 Line, Band, or Spot Deletions Example
Procedure
Inspect the test print for deletions (missing image). There should be no deletions with a diame-
ter larger than 0.5 mm visible on the test prints. No deletions are visible.
Y
N
Perform SCP 6 Final Actions.
Check the media. The media is clean, of the approved type, and free of defects.
Y
N
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.
Y
N
Clean the media path.
Replace the Drum Cartridge and reprint the test print. The image contains spots.
Y
N
Perform SCP 6 Final Actions.
Damaged Prints
Creases, wrinkles, excessive curl, cuts, folds or embossed
marks.
IQ12
Spot Deletions
Solid areas are marked with irregular white areas.
IQ2
Repeating
Defects
Recurring marks, spots, lines, or voids.
IQ13
Residual Image
The image from a previous print appears on the current print.
IQ14
Background
Uniform toner contamination in non image areas. See Back-
ground specification.
IQ15
Uneven Density
The text/line darkness and solid area density image varies
across the print.
IQ16
Registration
Displacement of the image, in the process or scan direction,
from its intended position on the print.
IQ18
Curved Vertical
Lines
Vertical lines are curved and distorted.
IQ19
Stains on Print
Back
Toner appears on the reverse side on single-sided images.
IQ17
Table 1 Image Defect Definitions
Defect
Definition
Go To
A
