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3. Developing
Bias Operation
COPY
STI\RT key
WMUPR
ON
WMUP
'
INTR
AER
SCFW
SCRV
SCFW
SCRULSTR
STBY ,\
AER
Figure 3-l 9
(1) The value of the DEVELOPING BIAS DC
COMPONENT
CONTROL signal and the
DC bias are determined
by (1) the set-
tings of the COPY DENSITY cursor and
recalibration
knob, (2) the AE sensor
output, and (3) the type of developing
unit installed.
(2) The DC bias used at times other than
during scanning depends on the type of
developing
unit installed.
Black developing
unit: Approx. - 320 V
CT unit: Approx. - 220 V
Note:
The AC component is added to the develop-
ing bias for a CT unit when the main motor
is operating.
COPVAlOHT
0
I988 CANON INC.
CANON HP-1015/1215S
AN.0
OCT. 1988 PRINTEM IA JAW
(IMPRIME
AU JAPONI
3-
19
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