Ricoh KW5708, Service Training

Page: 7 / 61

Slide 7
Reliability Information

Average monthly projection time: 58.3 hrs/month

2.65 hrs/day x 22 working days/month

Failure Rate

1st year: 0.0024 cases/unit/month

2nd year: 0.0029 cases/unit/month

3rd year: 0.0036 cases/unit/month

The failure rate of a projector increases with its
total power-up time. This is due in part to the
failure characteristics of optical engines in
projectors.

Lamp Life

Normal Mode: 3,000 hrs

Eco Mode: 4,000 hrs