Iq34 Poor Ink Adhesion, Poor Image Durability; Iq35 Massive Jet Loss - Xerox Phaser 8860 Service Manual

IQ34 Poor Ink Adhesion, Poor Image Durability

This RAP addresses image quality problems associated with the Print Engine. Poor ink adhe-
sion generally appears as a result of a overly glossy media coatings, or improper temperature
regulation of the Preheater or Drum.
Initial Actions
1. Check that supported media is being used.
2. Print an Information page from the Control Panel.
3. Check the application print settings.
Procedure
Table 1 IQ34 Poor Ink Adhesion, Poor Image Durability
Step Questions and Actions
1 Check the media type and finish.
If the media appears glossy, replace the
media and reprint.
Does the problem persist?
2 Check the Preheater and Drum temperatures.
Run the Service Diagnostics Temperature
test.
Are the temperatures within specified ranges
(approximately 60 to 62 degrees Celsius)?
3 Check the position of the Drum Temperature
Sensor.
Is the sensor positioned properly?
Initial Issue
Phaser 8860/8860MFP Service Manual
Yes No
Go to Step 2. Complete.
Go to Step 3. Adjust the guides.
Go to Step 4. Correctly position
the sensor.
09/2007

IQ35 Massive Jet Loss

This RAP addresses image quality problems associated with the Print Engine. Significant jet
loss can occur during high-coverage printing due to ink starvation. Restricted ink flow typically
occurs in individual jets and is caused by air bubbles that form while the ink cools. These bub-
bles are usually cleared during the warm-up process or periodic cleaning cycles. More signifi-
cant ink flow restrictions can occur when the system is mishandled while the ink is in liquid
form. While ink is liquid, tipping, tilting, or using excessive force to close a tray can cause ink to
infiltrate the upper portions of the Printhead blocking the flow of ink and air.
Symptoms of mishandling include:
• Ink in the Purge Hose
• Ink reservoir overflow
• Ink accumulations under the Printhead obstructing Printhead movement resulting in
7,010.43 errors.
• Massive jet loss in one or more colors.
Figure 1 Massive Jet Loss Example
Initial Actions
Inspect the Printhead for Ink overflow, blockage of the Purge Hose, or accumulations of ink
underneath the Printhead.
Procedure
If ink has been overflowing the Printhead reserviors, replace the Printhead.
3-25
Figure 1 is an example of massive jet loss
Image Quality
IQ34, IQ35