Noise; 3.10 Reliability; 3.11 Agency Approvals - Oki MICROLINE ML380 Maintenance Manual

3.9

Noise

1) Measurement method
The printer is placed 2.46 ft (0.75 m) above the floor, and the microphone is set 3.28 ft
(1 m) in front of the printer, and 4.92 ft (1.5 m) above the floor.
2) Printing operation
The printer is measured in the following ECMA Standard pattern (40 characters/line) and
double linefeed on one-part paper of 15 lbs (57 g/m
3) Noise value
The 8-second average noise is less than 54 dBA (LQ mode) when measured under the
above conditions with the printer fitted with the acoustic cover.

3.10 Reliability

1) MTBF (mean time between failures):
10,000 hours of power-on time
Page density : 35%
Duty cycle
2) Print head life:
200 million characters (average) in 10 CPI Draft mode at 25% duty, 35% page density.
3) Printer life:
12,000 hours of power-on time
Page density : 35%
Duty cycle

3.11 Agency Approvals

• C-Tick
• PSB
40959201TX Rev.1
: 25%
: 25%
2 ).
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