09/2007
3-5
Phaser 8860/8860MFP Service Manual
IQ4, IQ6
Image Quality
Initial Issue
IQ4 Skewed Copy Image
This RAP addresses image quality problems associated with the DADF. See the
Skew and
Margins
test print discussion.
Initial Actions
1.
Reset the Media Guides on the DADF Input Tray.
2.
Check that supported media is being used.
3.
Check that image skew exceeds specifications.
4.
Reseat all DADF connections.
Procedure
IQ6 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 DADF connections.
3.
Cycle power to the system.
Procedure
Table 1 IQ4 Skewed Copy Image
Step Questions and Actions
Yes
No
1
Check that the original is printed on sup-
ported media and is undamaged.
Is the original supported?
Go to Step 2.
Use the Platen.
2
Check that the paper guides are correctly
adjusted, and clean the Pick Roller and Sepa-
rator Pad.
Does the problem persist?
Go to Step 3.
Complete.
3
Perform the DADF to Scanner Calibration
adjustment procedure (
ADJ 1.15.1
).
Does the problem persist?
Replace the DADF
(
REP 1.0.15
).
Complete.
Table 1 IQ6 Fuzzy Text or Image
Step Questions and Actions
Yes
No
1
Print the Graphics Demo page for fuzzy
image or the Configuration page for fuzzy
text.
Does the text appear fuzzy?
The problem is
with the Print
Engine. See
IQ22
.
Go to Step 2.
2
Make a copy of the page printed in Step 1.
Does the image still appear fuzzy?
Go to Step 3.
Go to Step 4.
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?
Go to Step 4.
Complete.
4
Perform the DADF to Scanner Calibration
adjustment procedure (
ADJ 1.15.1
).
Does the problem persist?
Go to Step 5.
Complete.
5
Scan a copy of the page printed in Step 2.
Does the problem persist?
Replace the Scan-
ner Assembly
(
REP 1.0.11
).
Replace the DADF
(
REP 1.0.15
).
Summary of Contents for Phaser 8860
Page 1: ...705P01205 September 2007 Phaser 8860 8860MFP Service Documentation...
Page 4: ...09 2007 iv Phaser 8860 8860MFP Service Manual Initial Issue Introduction...
Page 28: ...09 2007 1 2 Phaser 8860 8860MFP Service Manual Initial Issue Service Call Procedures...
Page 34: ...09 2007 2 2 Phaser 8860 8860MFP Service Manual Initial Issue Error Messages and Codes...
Page 94: ...09 2007 3 2 Phaser 8860 8860MFP Service Manual Initial Issue Image Quality...
Page 126: ...09 2007 4 2 Phaser 8860 8860MFP Service Manual Initial Issue Repairs and Adjustments...
Page 208: ...09 2007 5 2 Phaser 8860 8860MFP Service Manual Initial Issue Parts List...
Page 222: ...09 2007 6 2 Phaser 8860 8860MFP Service Manual Initial Issue Diagnostics...
Page 274: ...09 2007 7 2 Phaser 8860 8860MFP Service Manual Initial Issue Wiring Data...
Page 294: ...09 2007 8 2 Phaser 8860 8860MFP Service Manual Initial Issue Theory of Operation...
