Xerox Phaser 8400 Service Manual page 237

Test Print Examples (Continued)
13-19: Black, Red, Green, Blue,
Cyan, Magenta, and Yellow Solid
Fills
This prints show uniformity of fill.
Look for:
1. Even, uniform fills throughout the print.
2. There should be no wrinkling or deformity
of the paper throughout the print.
3. Poor transfer on one side.
4. Repeating white stripes.
Causes:
1. Weak jets or uneven drum heating may
cause uneven fills.
2. To solve wrinkling, try different print media.
Replace the Maintenance Kit to correct
streaking. Check the drum-temperature
sensor for debris build-up on the sensor or
the sensor is not in proper contact with the
drum. See the test print Reverse Text.
3. If there is poor transfer on one side, check
to see if the Transfix Load Arm Assemblies
are moving easily. Clean any contamination
that may be interfering with the Transfix
Arm Assembly movement. If either of the
Transfix Load Arm Assemblies are worn,
replace the worn Load Arm Assembly.
4. If there are repeating white stripes on the
print, there may be a problem with the X-
axis motion. Confirm that nothing is
interfering with the x-axis motion, such as a
poorly dressed cable or a loose screw.
20: OHP Color Bands
This print is used for Manufacturing and
Engineering evaluation of printhead
performance.
5-12 Phaser 8400 Printer Service Manual
s8400-161