Canon PC300 Service Manual page 18

GENERAL DESCRIPTION
Changing the Density
BM PC320/325/FC230
You have a choice of three settings for
automatic density adjustment mode (AE);
switch the density if the copy is too dark or
too light.
Figure 1-16
3) Open the upper cover, and remove the
cartridge.
4) Put a flat-tipped cotton wad in the lens
: . : array (rear) groove, and move it back
Density correction switch and forth.
Figure 1-15
Note:
You can also switch the density among
three settings in manual density adjust-
ment mode.
3. Cleaning
Advise the user to clean the following if
the copies are soiled.
1. Copyboard Glass/GCopyboard Cover
Wipe the part with a moist cloth; then,
dry wipe it.
lf dirt cannot be removed, wipe the part
using mild detergent; then, dry wipe it.
Figure 1-17
2. Lens Array
1) Move the copyboard to the left until it
stops.
2) Put .a cotton wad in the lens array
groove, and move it back and forth light-
ly.
1-12 COPYRIGHT © 1994 CANONINC. CANON PC300320325, FC210290.REV.0 JULY 1994 PRINTED IN JAPAN (IMPRIME AU JAPON)