Xerox ColorQube 9303 Series, Service Manual, Page: 734 / 1812

February 2013
3-88 ColorQube® 9303 Family
TP 14
Image Quality
TP 14 Drum Stripper Blade Test Page
This page is a diagnostic test print used to diagnose errors related to the drum stripper blade
and stripper drive. The drum stripper blade test page records stripper blade activity during two
typical drum stripper activation sequences. In addition to blade timing, anomalies in the blade
such as warping, bounce, or edge damage may be visible in the stripped area of the image.
The drum stripper blade test page is printed from dC612 .
NOTE: All test prints should be printed on A4 or 8.5 x 11 inch plain paper and long edge feed.
Use the best quality media available. Do not use hole punched paper. Failure to do this will
result in an error message being printed instead of the test page.
NOTE: When the paper selected for the test print pages is correct, the test pages will be
printed with annotations on the bottom edge confirming the test print name and the LEF status.
The test page is designed to print in a particular resolution in order for the scale to be represen-
tative of millimeters. First, the image is created on the drum. The drum stripper blade is acti-
vated to simulate the stripping of one sheet of media. The area where the stripper blade
contacts the drum is visible on the print as the wiped off region.
Figure 1 is an example of a
normal drum stripper blade activation sequence. The test print is followed by two chase sheets
to clean the drum.
Purpose
To record drum stripper blade action. Refer to Figure 1 showing test page details. Test page
features include a background, a metric scale graduated in millimeters along each edge, a
‘Start’ line that corresponds to the point where the stripper drive solenoid is commanded to
actuate, and a MLE line that corresponds to the point on the drum where the media leading
edge would fall. During normal operation, the drum stripper blade makes contact in the 10 to
20 mm window (left side scale). The drum stripper blade releases from the drum in the 35 to 50
mm window (left side scale).
To solve image quality associated with the drum stripper blade, refer to IQ 8 Cross Process Ink
Artifacts (Smudge) RAP.
Figure 1 Drum stripper blade test page