NEC NP-NC1000C User Manual page 60

5. Maintenance of Your Projector
4
Mount the filter cover to the projector.
1. Grasp the knob on the filter cover and mount it to the projector.
2. Tighten the two knobs clockwise to secure the filter cover.
This completes replacing the rear air filter. Next, replace the side air filter.
Always reset the Filter1 usage time after replacing the rear air filter. (See page 46)
NOTE
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