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12
CLEANING
To get the brightest,
sharpest
screen
images,
keep the
optical system of your projector clean. Dust or fingerprints
on
the
projection
or
condenser
lens
will
reduce
the
brightness of the screen image and will cause it to appear
unsharp or low in contrast.
Projection Lens
Turn the focus knob clockwise until the lens is out as far as
it will go. Carefully move the focus knob toward the side of
the projector as you withdraw the projection
lens. Blow
any dust or dirt from the lens.
With a material such as Kopak Lens Cleaning Paper or
a soft, clean, lintless cloth, gently wipe the front and rear
surfaces of the lens. If moisture is required, breathe on
the lens surface or use a drop of cleaner such as KODAK
Lens Cleaner on the paper or cloth.
Replace the lens by again moving the focus knob toward
the side of the projector and guiding the lens back into
position. Insert the lens far enough into its recess so that
the gear teeth on the side of the lens barrel will be engaged
by the gear on the focus-knob shaft.
Condenser Lens, Heat-Absorbing Glass, and Mirror
Turn the projector bottom
side up. Open the LAMP DOOR
as described
on page
11. Push the LENS RETAINER
down-
ward
until it is free of its retaining clip; then raise the
retainer as far as it will go. Carefully lift out the CONDENSER
LENS and the HEAT-ABSORBING GLASS, and gently place them
on a soft cloth.
Clean both sides of the condenser
lens and the heat-
absorbing glass with Kopak Lens Cleaning Paper or a soft,
clean, lintless cloth. Be careful not to leave fingerprints on
any of the surfaces. Replace the lens and heat-absorbing
glass in their original locations, with the flatter side of the
condenser lens toward the front of the projector.
Gently clean the surface of the MIRROR with Kopak Lens
Cleaning Paper or a soft, clean, lintless cloth moistened
with Kopak Lens Cleaner. Close and fasten the lamp door.
S
À
Y
TRAY-REMOVAL
SCREW
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