Brother International HL-1440 Service Manual - Page 139
Mtbf / Mttr
UPC - 689466270150
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CHAPTER 5 PERIODIC MAINTENANCE 4. MTBF / MTTR The meantime between failure (MTBF) and the meantime to repair (MTTR) for this printer are as follows; MTBF: Up to 4,000 hours MTTR: Average 30 minutes 5-7
CHAPTER 5
PERIODIC MAINTENANCE
5-7
4.
MTBF / MTTR
The meantime between failure (MTBF) and the meantime to repair (MTTR) for this printer are
as follows;
MTBF:
Up to 4,000 hours
MTTR:
Average 30 minutes