NEC NP4001 User Manual page 116

6. Maintenance
3.
The rear filter can be
accessed as shown.
Once the filters are cleaned, please reset the filter hours via the Clear Filter Hours op-
tion in the
Note:
Using the projector without the air filter fitted inside, dirt and dust are sucked into
the projector, causing failure.
Downloaded From projector-manual.com NEC Manuals
Reset Menu Descriptions and Functions on page 101.
104