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3M 9700 Operator’s Guide
8
Cleaning
For best performance, keep your projector free of
excess dust and surface dirt.
Daily Cleaning
Use a soft cloth to remove dust from the stage and
projector base areas.
Stage Glass and Lenses
Use 3M Overhead Cleaner 676 to remove surface dirt
from the stage glass and projector lens.
Caution
!
Cleaning the underside of the stage glass or
Fresnel lens is not recommended. Improper cleaning
or disassembly may damage the optics. Contact your
3M Dealer or Service Center for assistance.
Projection Mirror
Use a soft brush to remove surface dirt from the
projection mirror.
Caution
!
The projection mirror is a front-surface mirror and
must not be wiped clean.
