Maintenance; Periodic Checks; Cleaning - Epson TM-U950 Technical Manual

CONFIDENTIAL

Maintenance

For optimal printer performance over the longest possible period and to prevent problems, it is
important to maintain the printer as described below.

Periodic Checks

The only user maintenance required on a regular basis is to follow the precautions described in
Handling at the beginning of this chapter.
Table 3-1 describes periodic maintenance, which should be performed only by experienced
persons who specialize in printers.
Table 3-1. Periodic Checks
Checkpoints
Dust, paper particles, or dirt on and
in the mechanism unit
Shape of the springs
Lubrication
Ribbon cassette
Operation check

Cleaning

Wiping off Stains
Wipe off stains with a clean dry cloth. If the stains cannot be wiped off, use a neutral detergent.
Note:
To avoid damaging the printer, do not use benzine, alcohol, thinner, trichloroethylene, or ketone-based
solvents on plastic and rubber components of the printer.
Cleaning Dust, Paper Particles, and Dirt
Cleaning with a vacuum cleaner is recommended. Thoroughly clean the printer components.
Rev. A
Standards
No dust, paper particles, or dirt
should be allowed to build up on or
in the mechanism unit. No foreign
materials should be in the printer
No small pieces of paper should be
left in the paper path.
No spring should be bent or
deformed.
Refer to Lubrication.
The ribbon cassette should be
properly installed on the ribbon
frame assembly.
The ribbon cassette should be the
one specified in this manual
The ribbon should never be reinked.
When each printer component is
observed, no abnormalities should
be found.
TM-U950/U950P Technical Manual
Remedies
Clean the mechanism unit
thoroughly with a vacuum cleaner.
Remove any pieces of paper from
the paper path.
Replace any deformed springs.
Lubricate at the points listed in
Table 3-2 or 3-3, Lubrication Points.
See installing and removing the
ribbon cassette.
Replace the ribbon cassette if it is
not the one specified or its print
quality is poor.
Replace the ribbon cassette.
Refer to the Troubleshooting flow-
chart in Chapter 4.
Handling and Maintenance 3-13