Color Is Uneven - Xerox Phaser 840 Service Manual

Color is uneven

Table 3-8 Color is uneven
Step Question and Actions
Clean the wiper blade of the drum maintenance drawer. Inspect the operation
1
of the drum maintenance cam roller and the left and right cam actuators it
pushes against.
Refer to the topic "Evaluating the printhead and cap/wipe/purge system" on
2
page 3-106. A properly functioning printhead maintenance system is essential
for proper printhead operation.
Perform the procedure, "Printhead-to-drum spacing adjustment (Phaser 840
3
Printer Only)" on page 4-146 and "Transfix roller pressure spring adjustment"
on page 4-154.
Replace the printhead.
4
3 - 90
Phaser 840/850/860/8200 Color Printer - Service Manual
This may be due to poor thermal regulation
in the printer, resulting in uneven heating of
the printhead, which in turn results in
uneven ink drop jetting.
0388-45