Specifications

Confidential
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TM-U590 series
Specification
(STANDARD)
Conditions of Acceptability
1) This component has been judged on the basis of the required spacings in the Standard for
Information Technology Equipment, Including Electrical Business Equipment, UL1950 and
CSA C22.2 No.950, Sub-Clause 2.9, which would cover the component itself if submitted for
Listing.
2) This unit is intended to be supplied by a SELV circuit only.
3) The terminals and connectors have not been evaluated for field wiring.
4) Interface connectors (DK, DM-D) are not intended for TNV connection.
1.9 Reliability
1) Life (When printing alphanumeric characters)
Mechanism: 12,000,000 lines
End of life is defined to have reached the end of its life when it
reaches the beginning of the Wearout Period.
Print head: 200 million characters
(When printing with font B)
NOTE: Printing pattern: Average 2 dots / wire per character
This printer has nine wire (dots) vertically and prints characters moving
horizontally. If one wire prints repeatedly, the problem may occur.
Consider this when you use the printer.
Example:
If the characters which consists of the horizontally adjacent dots such
as "H", "L", "-", or " A" are repeatedly printed, the number of the printed
lines should be ten or less. If more than ten such lines need to be
printed, the printer should pause for a time longer the total printing time
for each 10 lines.
2) MTBF 180,000 hours
Failure is defined as Random Failure occurring at the time of the
Random Failure Period.
3) MCBF 29,000,000 lines
This is an average failure interval based on failures relating to
wear up to the life of 12 million lines.