Reliability - Epson TM-U200D series Operator's Manual

Reliability

Life:
MTBF:
MCBF:
4-6 Reference Information
Mechanism: 7,500,000 lines
Print head: 150 million characters
(using an average of 2 dots/wire per
character)
End of Life is defined as the point
at which the printer reaches the
beginning of the Wearout Period.
180,000 hours
Failure is defined as Random
Failure occurring at the time of the
Random Failure Period.
18,000,000 lines
This is an average failure interval
based on failures relating to
wearout and random failures up to
the life of 7.5 million lines.