Epson U220B - TM Two-color Dot-matrix Printer Technical Reference Guide

Rev. D General Information 1-15
TM-U220 Technical Reference Guide
1.6.2 Reliability
1.6.3 Environmental Conditions
Operating temperature and humidity range
Life: Mechanism: 7,500,000 lines
MTBF: 180,000 hours
Failure is defined as a Random Failure occurring at the time
of the Random Failure Period.
MCBF: 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.
Print head life: 150 million characters (using an average of 2 dots/wire per
character). (The printing pattern is EPSON test pattern).
Autocutter life: 800,000 cuts
End of life is defined as the point at which the printer reaches
the beginning of the wearout period.
Temperature: During operation: 0 °C to 50 °C {41°F to 122 °F}.
(At 34 °C {93°F} or higher, there are humidity restrictions as
listed below. )
Humidity: During operation:10 to 90% (no condensation)
During storage:10 to 90% (no condensation; excludes paper
and ribbon)

Epson U220B - TM Two-color Dot-matrix Printer Specifications

General

Print Method	9-pin, serial impact dot matrix
MTBF	180, 000 hours
Weight	Approx. 2.5 kg
Data Buffer	4 KB or 40 bytes
Paper Handling	Friction feed
Character Set	95 Alphanumeric, 128 x 12 Graphic
Paper Dimensions	58, 70, 76 mm
Interface	USB, Serial (RS-232C), Parallel (IEEE-1284)
Reliability	18 million lines
Dimensions	160 (W) x 248 (D) x 139 (H) mm
Inked Ribbon	ERC-38
Color Support	Two-color printing (Black and Red)
Print Speed	4.7 LPS (lines per second) at 40 columns, 6.0 LPS at 30 columns
Character Size	1.2 × 3.1 mm (W × H) / 1.6 × 3.1 mm (W × H)