Oki Microline 520 - Reliability; Mean Time before Failure (MTBF); Mean Time to Repair (MTTR); Printer Life

1.11 RELIABILITY
1.11.01 Mean Time Before Failure (MTBF)
Approximately 6,000 hours: 25% duty cycle / 35% page density
1.11.02 Mean Time To Repair (MTTR)
Approximately 15 minutes to major sub-assembly level
1.11.03 Printer Life
Approximately 16,000 hours of power-on time: 25% duty cycle / 35% page density
1.11.04 Printhead Life
Average 200 million characters in 10 cpi utility mode @ normal 25% duty,
35% page density
1.11.05 Ribbon Life
Approximately 4 million characters
1.11.06 Warranty (Limited)
One year, parts and labor
1.11.07 Service
Authorized OKIdata Service Centers
Microline 520/521 Service Handbook 1 - 25 Specifications
P/N 59257803