Xerox Phaser 8860 User Manual

09/2007
3-17
Phaser 8860/8860MFP Service Manual
IQ22, IQ23
Image Quality
Initial Issue
IQ23 Poor Primary Color Fill
This RAP addresses image quality problems associated with the Print Engine. Poor primary
color fills typically result from obstructed jets. X-Axis errors may also cause banding. Indica-
tions of poor primary color fill can appear as follows:
Figure 1 Example of Poor Primary Color Fill on Output
Initial Actions
1. Check that supported media is being used.
2. Check for any dirt, debris or jammed media in the exit path.
3. Run several solid fill test prints in the affected color.
Procedure
2 Use a higher quality print mode.
Does the problem persist?
Go to Step 3. Complete.
3 Check that the dot on the Printhead Roll
Block is aligned with the label of the left side
of the frame. See Figure 7.
Adjust the position of the dot if necessary.
Does the problem persist?
Go to Step 4. Complete.
4 Check the thermal regulation of the Drum.
Run the Service Diagnostics temperature
tests.
Replace the Drum Temperature Sensor (REP
6.0.4), if necessary.
Does the problem persist?
Go to Step 5. Complete.
5 Check Y-Axis motion.
Run the Service Diagnostics Y-Axis Encoder
test.
Does the problem persist?
Go to Step 6. Complete.
6 Check X-Axis motion.
Follow the White Stripes (Pinstripes) proce-
dure to correct an X-Axis problem.
Does the problem persist?
Go to Step 7. Complete.
7 Check that the Printhead is tilted forward
against the Drum in proper print position.
Realign the Printhead if necessary.
Does the problem persist?
Follow Printhead
Troubleshooting
Checklist.
Complete.
Table 1 IQ22 Fuzzy Text
Step Questions and Actions Yes No
Table 1 IQ23 Poor Primary Color Fill
Step Questions and Actions Yes No
1 Banded or inconsistent primary fills may indi-
cate a missing, weak, or discolored jet.
Print the Weak/Missing Jet test print.
If there are discolored jets, print the Solid Fill
test print for the affected color.
Does the problem persist?
Go to Step 2. Complete.
2 Test the Y-Axis Encoder.
Run the Service Diagnostics Encoder test.
Does the problem persist?
Replace the Drum
Assembly (REP
2.0.3). If the prob-
lem persists, go to
Step 3.
Complete.

Xerox Phaser 8860 Specifications

General

Brand	Xerox
Model	Phaser 8860
Category	All in One Printer
Language	English