Epson LQ-2550 User Manual - Page 241
to 60.5 Hz, Insulation resistance
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Ribbon: Black ribbon cartridge #7762: Life expectancy (in Letter Quality characters, at 48 dots/character): 3 million Color ribbon cartridge #7763: Life expectancy (in Letter Quality characters, at 48 dots/character) Black: Cyan: Magenta: Yellow 1.0 million 0.7 million 0.7 million 0.5 million Film ribbon cartridge #7764: Life expectancy (at 10 cpi, with bidirectional printing, using 136 columns): 0.1 million* * This number may vary depending on print direction, characters per inch, or text density per page. MCBF: For all components excluding print head: 5 million lines MTBF: 6000 power-on hours (at 25% duty) Print head life: 200 million strokes per wire Dimensions and weight: Height: 7.7" Width: 26.6" Depth: 20.4" Weight : approx. 44 lbs Voltage: 120 VAC f 10% Power consumption: 400 watts maximum Frequency: 49.5 to 60.5 Hz Insulation resistance: 10M ohms between AC power line and chassis Dielectric strength (between AC line and chassis): Can withstand 1.00 kV rms applied for one minute or 1.2 kV rms applied for one second. Technical Specifications A-5