Xerox Phaser 8860, Service Manual

Page: 98 / 316

09/2007
3-6 Phaser 8860/8860MFP Service Manual
IQ5, IQ7
Initial Issue Image Quality
IQ5 Copy Image is Lighter or Darker than the Original
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.
Procedure
NOTE: The Control Panel settings for Color Mode, Document Type, Output Quality, and
Lighten/Darken influence the output in different ways. Finding a satisfactory combination of
these settings for a particular original might require several attempts. In some cases, these
controls may not completely compensate for artifacts introduced in the scanning process.
IQ7 Copied Image Colors Do Not Match the Original
This RAP addresses image quality problems associated with the DADF.
Initial Actions
1. Check that supported media is being used.
2. Test output using Laser Original Mode.
3. Reseat all DADF connections.
4. Cycle power to the system.
NOTE: There can be slight color variations from an original copy to a solid ink print resulting
from the physical properties of the original, (i.e., ink jet copy, laser toner copy, etc.). A Laser
Original Mode is also available to adjust the imaging system to more accurately produce copies
of laser originals. Color matching varies because the reflective characteristics of the original
vary.
The Control Panel settings for Color Mode, Document Type, Output Quality, and Lighten/
Darken influence the output in different ways. Finding a satisfactory combination of these set-
tings for a particular original might require several attempts. In some cases, these controls may
not completely compensate for artifacts introduced in the scanning process.
Procedure
Table 1 IQ5 Copy Image is Lighter or Darker than the Original
Step Questions and Actions Yes No
1 Check and/or adjust the Control Panel copy
settings.
1.
Print the Troubleshooting Print Quality
page and evaluate the Output Quality
and Color Settings section.
2. Use the Lighten/Darken Output Quality
adjustment to attempt to correct the
problem.
3. Check that the print mode is not set to
Draft or Standard.
Does the problem persist after making the
adjustments?
Go to Step 2. Complete.
2 Perform the DADF to Scanner Calibration
adjustment procedure (
ADJ 1.15.1 ).
Does the problem persist?
Replace the DADF. Complete.
Table 1 IQ7 Copied Image Colors Do Not Match the Original
Step Questions and Actions Yes No
1 Print the Graphics Demo page.
Make a copy of the Graphics Demo page.
Do the colors vary between the two? Go to Step 2. Complete.
2 Check and/or adjust the Control Panel copy
settings.
Print the Troubleshooting Print Quality page
and evaluate the Output Quality and Color
Settings section.
Does the problem persist after making the
adjustments? Go to Step 3. Complete.
3 Perform the DADF to Scanner Calibration
adjustment procedure (
ADJ 1.15.1 ).
Does the problem persist?
Go to Step 4. Complete.
4 Replace the DADF.
Does the problem persist? Go to Step 5. Complete.
5 Check the cabling between the Scanner and
Print Engine.
Is the cabling damaged? Replace the Scan-
ner Assembly
(
REP 1.0.11 ).
Replace the Elec-
tronics Module. If
the problem per-
sists, replace the
Scanner Assem-
bly (
REP 1.0.11 ).