Epson U375 - TM B/W Dot-matrix Printer, Technical Manual

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1-7
Impact resistance (in Epson standard package)
●
When packed:
Height: 60 cm (23.62")
Directions: 1 corner, 3 edges, and
6 surfaces
No external or internal damage should be found after the
drop test, and the printer should operate normally.
●
When unpacked:
Height: 5 cm (1.97")
Directions: Lift one edge and release it (for
all 4 edges)
A non-operating printer should not be damaged after it is
dropped (for all 4 edges).
Acoustic noise
Operating: Approx. 65 dB with ANSI standard
(Bystander position, receipt/journal printing)
Electrostatic voltage
(Measured based on the IEC801-2 test conditions)
Air discharge 8kV clear level
Contact discharge 4kV clear level
1.2.10 Reliability
MCBF
Printer mechanism:
Paper roll:
5,000,000 lines
Cut sheet: 3,000,000 lines
(when each paper type is used separately;
for printing on both paper roll and cut
sheet, total is 5,000,000 lines)
Figure 1-13. MCBF Ratings by Paper Type
Print head life:
100,000,000 characters
(2 dots on average/print head pin/character)
1.2.11 Certifications
EMI standards
FCC Class A
VDE Class B (F mark)
Safety standards
UL1950-2TH-D3 (recognized component)
C•UL (CSA950-D3) (recognized component)
EN60950 (IEC950 2TH)
5,000,000
4,000,000
3,000,000
2,000,000
1,000,000
0
(Lines)
................
................................
................................................
0 1,000,000 2,000,000 3,000,000
.................................
...........................................
Paper roll
Cut sheet
(Lines)
CONFIDENTIAL
Rev. B Features and General Specifications 1-7
TM-295/295P Technical Manual
1.2.10 Reliability
Life
Mechanism:
Print head life:
7,500,000 lines (only when printing on paper roll)
3,000,000 lines (only when printing on cut sheet)
When printing both on paper roll and on cut sheet,
total printing lines are 7.5 million lines.
150 million characters
End of Life is defined as the point at which the
printer reaches the beginning of the Wearout
Period.
MTBF: 180,000 hours
Failure is defined as Random Failure occurring at
the time of the Random Failure Period.
MCBF: 18,000,000 lines (only when printing on paper roll)
This is an average failure interval based on
failures relating to wearout and random failures up
to the life of 7.5 million lines.
7,000,000 lines (only when printing on cut sheet)
This is an average failure interval based on
failures relating to wearout and random failures up
to the life of 3 million lines.