Minolta Di620, Manual, Page: 57 / 466

M-38
4) ON/OFF Control of Original Detecting Solenoid
•
The Original Detecting Solenoid is controlled by the Original Detecting Solenoid
remote signal output by the Digital Image Processing Board.
<Original Detecting Solenoid ON Timing>
¿ At Power Switch ON, or at CPU Reset
•
When the copier is executing clamp/gain auto-adjustment, the Original
Detecting Solenoid remote signal goes after the exposure lamp comes on
for the second time, causing the Original Detecting Solenoid to go ON. (This
is done to check the operation of the Original Detecting Filter.)
¡
At Start Key ON
•
If the copier is set to a mode that uses original detection: The Original Detect-
ing Solenoid remote signal goes when the shading sequence is com-
pleted, causing the Original Detecting Solenoid to come ON. (The Original
Detecting Solenoid remote signal and the Original Detecting Solenoid sole-
noid do not operate if the copier is set to a mode that does not use original
detection.)
<Original Detecting Solenoid OFF Timing>
¿
At Power Switch ON, or at CPU Reset
•
When the copier is executing clamp/gain auto-adjustment, the Original
Detecting Solenoid remote signal goes after the Original Detecting Sole-
noid comes ON. This causes the Original Detecting Solenoid to go OFF.
¡ At Start Key ON
•
The Original Detecting Solenoid remote signal goes when the original
detection sequence is completed, causing the Original Detecting Solenoid to
go OFF.
CONTROL SIGNAL ON OFF WIRING DIAGRAM
SL7 PJ9IB-3B A~B-15~16
L
L
H
H
1155T39MCB
SL7 Remote Signal
Original Detecting Solenoid
(SL7)
Scanner Reference Position
Sensor (PC55)
Exposure Lamp
(FL1)
Power Switch(S1) : ON Start Key ON Detection completed
ON
ON ON ON
Clamp/Gain
auto-adjustment
Original Detecting Filter
operating check
Shading sequence Original-detection
sequence
Copying
L
L L L
L
ON
L H