7-2
Phaser 440 Color Printer
7
Cleaning and Maintenance
3.
Remove the paper-feed module as explained in the Section 8 topic
“Paper-feed module” on page 8-6 to gain easier access to its rollers.
With an alcohol-dampened cloth, clean the following:
■
Three black rubber feed rollers
■
Two alignment rollers
■
All sheet metal surfaces
4.
Reinstall the paper-feed module.
5.
With a 90% isopropyl alcohol-dampened cloth, clean the lower
paper-eject rollers.
6.
Remove the front top cabinet panel to access the upper paper eject
rollers; clean them with an alcohol-dampened cloth.
7.
With an alcohol-dampened cloth, gently clean the drum. Use
side-to-side strokes. Rotate the drum as you clean it.
8.
Clean the transfer roll mark sensor's white reflection plate with an
alcohol-dampened cloth.
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 lubrication is needed:
■
Bushings:
Apply a drop of light oil to a bearing if it is noisy or
running dry.
■
Alignment roller clutch and paper-pick clutch:
The clutches each use
a spirally wound spring riding on a metal gear core. The springs are
very noisy if they lose lubricant. Disassemble the clutch and lubricate
the spring with grease. For reassembly, the spring catch fits into the
center hole of the clutch sleeve.
Tools and supplies required
■
Light oil
■
White grease 006-7436-00