Oki ML390 - Reliability Specifications

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Service Guide ML390/391
Chapter 1 Product Specifications
1.11 RELIABILITY SPECIFICATIONS
1.11.01 Mean Time Between Failures (MTBF)
· 5000 hrs @ 25% duty cycle, 35% page density
1.11.02 Mean Time To Repair (MTTR)
· 15 minutes @ major sub-assembly level
1.11.03 Printer Life
· 12,000 hrs @ 25% duty cycle, 35% page density
1.11.04 Ribbon Life
· 2 million characters
1.11.05 Printhead Life
· 200 million characters in 10 cpi utility print quality. 35% page density and 25% duty cycle
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