Epson TM-U950 Technical Manual

Rev. A Handling and Maintenance 3-13
TM-U950/U950P Technical Manual
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.
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.
Table 3-1. Periodic Checks
Checkpoints Standards Remedies
Dust, paper particles, or dirt on and
in the mechanism unit
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
Clean the mechanism unit
thoroughly with a vacuum cleaner.
No small pieces of paper should be
left in the paper path.
Remove any pieces of paper from
the paper path.
Shape of the springs
No spring should be bent or
deformed.
Replace any deformed springs.
Lubrication Refer to Lubrication.
Lubricate at the points listed in
Table 3-2 or 3-3, Lubrication Points.
Ribbon cassette
The ribbon cassette should be
properly installed on the ribbon
frame assembly.
See installing and removing the
ribbon cassette.
The ribbon cassette should be the
one specified in this manual
Replace the ribbon cassette if it is
not the one specified or its print
quality is poor.
The ribbon should never be reinked. Replace the ribbon cassette.
Operation check
When each printer component is
observed, no abnormalities should
be found.
Refer to the Troubleshooting flow-
chart in Chapter 4.
CONFIDENTIAL

Epson TM-U950 Specifications

General

Print speed	18.6 ips
Character size	1.3 x 3.1 mm
Print technology	Dot matrix
Paper dimensions	210 x 297 mm
Dimensions (WxDxH)	251 x 298 x 194.5 mm
Electromagnetic compatibility	VCCI, FCC, CE
Safety	UL, CSA
Country of origin	China
Mean time between failures (MTBF)	180000 h
Serial interface	Yes
Standard interfaces	RS-232C
Weight (imperial)	12.3 lbs
Pallet width	1200 mm
Pallet height	1000 mm
Pallet length (UK)	2250 mm
Quantity per pallet	24 pc(s)
Quantity per pallet (UK)	36 pc(s)
Quantity per pallet layer	4 pc(s)
Harmonized System (HS) code	84433210
Quantity per pallet layer (UK)	6 pc(s)
Package depth	425 mm
Package width	360 mm
Package height	330 mm
Package weight	7196 g
Quantity per pack	1 pc(s)

Weight and Dimensions

Depth	298 mm
Width	186 mm
Height	195 mm