Nec NP4001/NP4000 Manuel d'utilisateur télécharger pdf (Page 115)

6. Maintenance

103

Cleaning the Filters

The projector uses three filters to keep the fans free of dust and other particles, and

should be cleaned every 500 hours of operation. In dustier environments, it is recom-

mended to clean the filters more frequently. If the filter is dirty or clogged, your projector

may overheat. When the message below is displayed the filters must be cleaned.

Note:

When the Please clean filter message is displayed, please clean or replace

all three filters at the same time to synchronize the hours used display.

The Filter Message item should be enabled in the Options menu. Refer to Op-

tions on page 95.

Refer to the following guide to clean the filters.

Lift the projector to

expose the underside to

locate the first filter.

See the drawing on the

right.

Note: Only clean the out-

side of the exhaust vents

with a vacuum cleaner.

Bottom view

The left-hand filter can be

accessed as shown.

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Nec NP4001/NP4000 Manuel d'utilisateur Page 115