Xerox Phaser 840, Service Manual

Page: 186 / 287

5 - 170 Phaser 840/850/860/8200 Color Printer - Service Manual
19: Yellow Solid Fill
This prints shows uniformity of fill.
Look for: Even, uniform fills throughout the
print. There should be no wrinkling or deformity
of the paper throughout the print.
Causes: Weak jets or uneven drum heating
may cause uneven fills.
To solve wrinkling, try different print media.
Replace the drum maintenance tray to correct
streaking.
Check the drum-temperature sensor for debris
build-up on the sensor. Or the sensor is in
improper contact with the drum. Refer to the test
print
Reverse Text .
The transfix pressure may be incorrect. Perform
the transfix spring adjustment described in
"Transfix roller pressure spring adjustment", on
page 4-154. As a last resort, replace the
drum/transfix assembly.
20: OHP Color Bands
This print consists of sequential bands of
primary and secondary colors followed by a blue
tint. This print is used for manufacturing and
engineering evaluation of printhead
performance.
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