Epson DFX-8000 Service Manual page 74

Principles of Operation
Printing method
Number of wires
Wire diameter
Print head life
Coil resistance
Drive period
Typical
Minimum
Drive voltage
Insulation resistance
Environmental conditions
Temperature
Humidity
2-2
Table 2-1. Print Head Specifications
Spring charge type impact printing
18 (nine wires arranged in twc rows)
I
400 million strokes/wire
12.3 ounces (352 g)
2.93 +0.2 ohms at 77OF (25%)
I
417 j~sec or more
397 psec
35.5 to 37.5 VDC
I
500 VDC: 100 Mohms or more
I
10% to 85% RH
I
I
I
I
DFX-8000