Tektronix PHASER 380, Service Manual

Page: 205 / 346

Service Manual 7-25
Cleaning and Maintenance
7
Vacuum
Vacuum dust from the top cover, metal dust cover and plastic dust cover under
the stripper fingers. Also vacuum the media width sensor assembly.
Lubrication
In general, all of the printer's bearings and motors are lifetime
factory-lubricated. However, over time and under certain extreme operating
conditions, oil and grease may dry out, causing squeaks and rumbling noises in
the printer. Look for fine metal particles — a clear sign of an old or worn
bearing. Replace the bearing or the assembly it is a part of.
A drop of oil or grease on a noisy bushing will quiet a noisy printer. Too much
lubrication can get into the paper path and attract dust, so apply lubrication
sparingly.
Lubricate the following only when needed:
■
Bushings: Apply a drop of light oil to a bushing if it is noisy or
running dry.
■
Plastic gear train: This gear train from the process motor to the
paper-feed module requires only a small amount of white grease for
noise reduction purposes. Apply grease sparingly so that it does not
fling off of the gears when they turn. You need only to apply a dab of
grease to a single gear and the grease will migrate throughout the
entire gear train.
■
White (nylon) plastic bearings and cams: No lubrication required.
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.
Tools and supplies required
■
Light oil 006-2530-01
■
Grease 006-7997-00