1

Check dust filters of the projector for dust and grease.

Grease on the filter can build up after several months in an environment contaminated with greasy air. Note that areas where popcorn is consumed are subject to greasy air.

• If the filters are contaminated with dust than cleaning the filters with a vacuum cleaner should be sufficient.

• In case the filters feel greasy than the filters must be washed.

Take into account that the time needed to dry the dust filters may be 24 hours or more. For that, it's recommended to have a second set of dust filters which can be used while cleaning the first set.

Replace damaged filters immediately.

See procedures "Vacuum cleaning of the dust filters", and "Washing and drying the dust filters".

To speed-up drying, allow the filter(s) to dry at 50°C max in a well ventilated room.

2

Check the surface of the lens output side for dust. (it is not needed to remove the lens from the projector). Only clean if necessary.

Clean the lens output side in case dust is clearly visible upon the surface.

Note: if the lens was removed from the projector, a manual “Lens Home & Return” action must be executed to calibrate the position of the lens in relation to the Lens Holder. This way the references of the existing 'lens files' remain valid. See user guide of the Communicator software.

3

Check the porthole (both sides) for dust.

Clean the porthole in case dust is clearly visible upon the surface. Use an optical cloth.

4

Check the good working condition of the external safety interlock system (if installed).

Ensure that all safety signs are still in place. .

5

Check dust filters of the chillers for dust and grease.

To access the filters and cleaning instructions see documentation set of the chillers.