Pick Roller Cleaning Method; Cleaning Page (Phaser 840 Printer Only); Vacuum; Drum Temperature Sensor - Xerox Phaser 840 Service Manual

Pick Roller Cleaning Method

Use off-the-shelf clear packaging tape and follow the procedures listed below to clean the
Phaser 860 Upper Tray Pick Roller and Pick pad. This new cleaning method has been
found to be extremely effective for removing debris. Isopropyl alcohol tends to smear the
debris, rather than remove it.
Use extreme caution with this procedure as there are sharp and
Note
hot surfaces inside the printer near the pick roller.
Remove the paper tray.
1.
Open the front door and remove the maintenance drawer.
2.
Peel off approximately 2 inches of tape, leaving the strip on the roll.
3.
Holding the strip straight, attach the leading edge of the tape to the top of the pick
4.
roller, inside the front cover.
Rub the tape across the top of the roller so that the leading edge is fully adhered to the
5.
roller surface.
Holding the strip straight, roll the tape strip onto the roller to cover the full roller
6.
circumference. It does not need to be tightly attached to the roller, just wind it up.
Continue to hold the strip straight.
While slowly pulling back on the roll of tape, rub the tape back and forth across the top
7.
of the roller. This will unroll the tape strip from the roller, while the rubbing action
picks up the debris from the roller.
Locate a clean section of the tape, rub it onto the surface of the pick pad for the paper
8.
tray and then remove it.
Reinsert the paper tray and maintenance drawer.
9.

Cleaning Page (Phaser 840 printer only)

Under certain conditions, the printer purges its ink-jet nozzles to clear any jets plugged
with ink. When the purge is completed, the printer outputs a cleaning page to clear the
purge pattern from the print drum. Ink jets are purged under the following conditions:
During warm-up from a power-off condition.
I
When the printer exits the Energy Star mode.
I
When customers initiate the Eliminate Light Stripes automatic
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cleaning procedure from the front panel.

Vacuum

Vacuum dust from the top cover, the metal heat duct over the printhead and plastic dust
cover under the stripper fingers or rapid release guide.

Drum temperature sensor

With a dry swab, clean any buildup around the drum temperature sensor. You can access
the sensor through the opened exit cover. Also make sure the sensor rides evenly on the
drum surface. You can remove the sensor, if necessary, to clean under it.
Cleaning and Maintenance 6 - 175