Xerox 8850 Service Manual

03/2003
6-12
8850/ 510DP
GP 3
General Procedures
GP 3 Drum Maintenance
WARNING
When performing this drum maintenance, do the following:
• Ensure that there is adequate ventilation in the area.
• Use protective gloves at all times.
• Do not smoke.
• Wash your hands when the procedures are completed.
CAUTION
These procedures must be completed in the shortest possible time in order to reduce the
effects of light shock.
Washing Procedure
Washing Materials:
• Drum Maintenance Kit
• Film Remover
1. Remove the Drum Assembly from the Xerographic Module (REP 9.2).
2. Put on gloves.
3. Gently remove any dry ink/toner and developer from the surface of the drum, using a dry
polyurethane pad.
4. Apply Film Remover to a clean polyurethane pad.
5. (Figure 1): Wash the drum from end to end, using a circular motion.
Figure 1 Washing the Drum
NOTE: Ensure that the ends of the drum are washed.
6. Using the clean side of the polyurethane pad, continue washing the drum until the entire
surface of the drum is covered with film remover.
7. Allow enough time for the air to dry the surface of the drum.
8. Use the dusting pouch to apply a thin layer of Zinc Stearate (8R181) over the entire sur-
face of the drum.
9. Buff the surface of the drum using the clean side of the dry polyurethane pad.
NOTE: Ensure that the ends of the drum are buffed as well as the center of the drum.
10. Continue to buff the surface of the drum for three complete revolutions of the drum.
11. Apply a final thin layer of Zinc Stearate over the entire surface of the drum.
12. Reinstall the drum.
13. Enter the diagnostic mode. Enter test [10-04] and allow the Printer to run for five more
minutes.
14. Place the used washing materials in the disposal bag.
15. Wash your hands.
Polyurethane pad
Minimum Pressure

Xerox 8850 Specifications

General

Brand	Xerox
Model	8850
Category	Printer
Language	English