Xerox 8825 Service Manual

01/02
3-12
8825/8830 Printer
PQ 7, PQ 8
Print Quality
PQ 7 Blurred Image PQ 8 Deletions (bands)
Table 1 Blurred Image Symptom / Check
Symptom/ check
The image is not clear or
sharp.
Probable Cause Corrective Action
1. Defective/contaminated
Image Module.
1A. Ensure the spacing rollers
and drum ends are not con-
taminated/defective.
1B. Clean the LED Array with
a lint-free cloth.
2. Contamination on Transfer/
Detack Corotron
2A. Clean or replace as
required.
2B. Perform GP 1, HVPS
Checkout Procedure.
3. Defective drive gear 3. Check the following drive
gears for damage:
a. drum drive gear
b. developer drive gear
c. cleaner drive gear
4. Defective registration roller 4. Replace as required ( PL
8.2).
5. Media transport 5. Check the Media Transport
gap ( ADJ 8.4).
6. Defective buckle control 6. Replace the buckle switch
( PL 8.4).
Table 1 Deletions (bands) Symptom / Check
Symptom/ check
Deletion bands or very low
image density in the print feed
direction.
Probable Cause Corrective Action
1. Damp media 1A. Refer to BSD 7.1 and
BSD 7.3 to check for correct
operation of the Paper heat-
ers.
1B. Ensure that the Customer
is storing the media correctly.
2. Corotrons 2A. Clean / replace or repair
the T/DT corotrons ( REP
9.9).
3. Defective HVPS 3. Perform GP 1, HVPS
Checkout Procedure.
4. Developer Housing 4A. Ensure that the Devel-
oper Housing is latched
securely.
4B. Check the mag roll for
foreign material or contamina-
tion. Ensure that there is an
even coating of developer
material on the mag roll.
5. Defective or contaminated
LED Image Bar.
5. Check / clean the LED
Image Bar [9-21-5. ( PL 9.3)
6. Contaminated Erase
Lamp.
6. Clean with a lint free cloth.
7. Media transport 7. Ensure that the gap ( ADJ
8.4) is set correctly.
8. Heat Roll 8. Check for surface damage.
( PL 10.2)
9. Defective drum 9. Replace the drum ( REP
9.3).

Xerox 8825 Specifications

General

Brand	Xerox
Model	8825
Category	Printer
Language	English