Iq12 Fuzzy Text Or Image; Iq13 Random Light Stripes - Xerox Phaser 8860 Service Manual

IQ12 Fuzzy Text or Image

This RAP addresses image quality problems associated with the DADF.
Initial Actions
1. Check that supported media is being used.
2. Reseat all cable connections between the Scanner Assembly and the Electronics Module.
3. Cycle power to the system.
Procedure
Table 1 IQ12 Fuzzy Text or Image
Step Questions and Actions
1 Print the Graphics Demo page for fuzzy
image or the Configuration page for fuzzy
text.
Does the text appear fuzzy?
2 Make a copy of the page printed in Step 1.
Does the image still appear fuzzy?
3 Check and/or adjust the Control Panel copy
settings.
Print the Troubleshooting Print Quality page
and evaluate the Output Quality and Color
Settings section. Use Text or Mixed print
mode to evaluate text. Graphics lose image
quality in these two modes. If the system is
set to Photo or Graphics mode, text quality
decreases.
Does the problem persist after making the
adjustments?
4 Perform the DADF to Scanner Calibration
adjustment procedure (ADJ 1.15.1).
Does the problem persist?
5 Scan a copy of the page printed in Step 2.
Does the problem persist?
Initial Issue
Phaser 8860/8860MFP Service Manual
Yes No
The problem is Go to Step 2.
with the Print
Engine. See IQ22.
Go to Step 3. Go to Step 4.
Go to Step 4. Complete.
Go to Step 5. Complete.
Replace the Scan- Replace the DADF
ner Assembly (REP 1.0.15).
(REP 1.0.11).
09/2007

IQ13 Random Light Stripes

This RAP addresses image quality problems associated with the Print Engine. Random light
stripes typically result from an obstructed Printhead jet. Most jet obstructions are caused by
paper fibers or air bubbles. Indications of a random light stripe condition are one or more color
bars missing on the test page, or output that appears as follows:
Figure 1 Random Light Stripes
NOTE: If there are discolored jets, as shown in
affected color. In the following example, the center yellow stripe has discolored jets, therefore
you would print the yellow solid fill.
Figure 2 Discolored Jets on the Light Stripes Page
3-9
Figure 2, print several solid fill test prints in the
Image Quality
IQ12, IQ13