Canon PC300 Service Manual page 12

Ss GENERAL DESCRIPTION :
IV. OPERATION
A. Control Panel
4 4Darken
4. PC320/325/FC230
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Figure 1-4A
Density Control Dial
AE key
¢ Press it to select/deselect AE (auto-
matic exposure) mode.
@® AE Indicator
e 'A' goes ON when AE mode is select-
ed.
« 'A' goes OFF when AE mode is dese-
lected.
@ Jam Indicator
¢ Flashes when paper jams inside the
copier.
© Copy Count Indicator
* Displays the number of copies entered
by pressing the Copy Count Set key.
* The count decreases for each copy
made; the initial number is displayed
after the last copy has been made.
¢ 'P' is displayed to indicate pick-up fail-
ure or absence of paper; 'E' is dis-
played in response to an error found
by self diagnosis.
© Copy Count Set Key
* Each press on the key increases the
copy count (up to 9).
¢ A press while '9' is displayed causes
'F' to appear, indicating all sheets on
the pick-up tray will be used for contin-
uous copying.
(SIS)
COPYRIGHT © 1904 CANON INC.
71
= V yLighten
\_
(right view)
@ Clear/Stop Key
¢ During continuous copying, the key
serves as a Copy Stop key; the opera-
tion stops after finishing the ongoing
copy.
* During standby, the key serves as a
Clear key, setting the copy count to '1'.
Copy Start Key
@ Power Switch
@ Density Correction Switch
* Switches copy density among three
settings (top for darker, bottom for
lighter).
»* The density is switched by varying the
developing bias.
CANON PC300/320/925, FC210/280 REV.0 JULY 1994.PRINTED IN JAPAN {MPRIME AU JAPON)