Tektronix Phaser 840, Quick Reference Manual

Page: 153 / 160

Service Guide
143
18: 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 72. As a last
resort, replace the drum/transfix
assembly.
19: 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.
0388-37