Xerox WorkCentre 5687 Series Service Manual page 1709

ADJ 14.1B Optics Cleaning Procedure (65-87 ppm)
Parts List on PL 14.10
Purpose
To clean the optical components of the scanner ensuring optimum image quality.
NOTE: This adjustment must only be performed if directed to it from an Image Quality RAP, or
if the optics cavity was opened to install a new component and contamination can be seen.
Procedure
WARNING
Switch off the electricity to the machine, GP 14. Disconnect the power cord from the
customer supply while performing tasks that do not need electricity. Electricity can
cause death or injury. Moving parts can cause injury.
CAUTION
Observe ESD precautions during this procedure.
1. Remove the DADH, REP 5.19.
2. Remove the CVT glass and document glass, REP 14.3B.
3. Figure 1. Inspect the cleanliness of the exposure lamp, lens and mirror and if necessary,
clean them as follows:
a. Vacuum clean the area as necessary to remove all visible contamination, taking care
not to touch the mirror, exposure lamp or lens with the cleaning nozzle. It may be
necessary to move the carriage gently to the left. It is advisable to leave it in this
position, but it can be returned to the home position by depressing slightly to allow
the flag to enter the gap in the scan carriage home sensor.
b. Wash your hands.
c. Carefully clean the exposure lamp, the top of the full width array and the mirror with
a micro fiber wiper, PL 26.10 Item 13, dampened with antistatic fluid, PL 26.10 Item
19.
d. Polish the lamp, array top and mirror with a dry micro fiber wiper, PL 26.10 Item 13.
4. Examine the lenses of the document size sensors, PL 14.16 Item 11, and clean if neces-
sary with a micro fiber wiper, PL 26.10 Item 13.
5. Inspect the document glass and CVT glass and if necessary, clean them as follows:
a. Clean the under side of document glass and CVT glass using a micro fiber wiper, PL
26.10 Item 13, dampened with antistatic fluid, PL 26.10 Item 19.
b. Polish the under side of document glass and CVT glass with a dry micro fiber wiper,
PL 26.10 Item 13.
c. Install the document glass and CVT glass, taking care not to smear the cleaned
underside, REP 14.3B.
NOTE: Ensure that the white AGC strip on both the CVT glass and the document
glass, are at the front of the machine and on the underside of the glass.
d. Clean the upper side of document glass and CVT glass using a micro fiber wiper,
dampened with film remover, PL 26.10 Item 4.
e. Polish the upper side of document glass and CVT glass using a dry, micro fiber
wiper.
6. Re-install the remainder of the removed components.
WorkCentre 5687 Family
Flag
August 2007
4-689
Scan carriage
home sensor
Figure 1 Optics cleaning
Repairs/Adjustments
Mirror
Lens
Exposure lamp
ADJ 14.1B