Service Manual
7-11
Cleaning and Maintenance
7
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. Look for fine metal
particles – a clear sign of an old or worn bearing. Replace the bearing or the
component 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 lubrication is needed:
■
Bushings:
Apply a drop of light oil to a bearing if it is noisy or
running dry.
■
White plastic gear train:
This gear train from the paper-feed motor to
the paper-feed module requires only a small amount of white grease
for noise reduction purposes. Apply it sparingly so that the grease
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.
Tools and supplies required
■
Light oil
■
White grease
order number 006-7436-00