10-42 Phaser 7750 Printer Service Manual
Laser Shutter Control
MCU PWB
PL13.1
I/F PWB
PL9.1
P/J410
+5VDC
+5VDC
DC COM
DC COM
DC COM
DC COM
DC COM
DC COM
DC COM
DC COM
DC COM
DC COM
1
13
12
11
10
+24VDC
INTERLOCK
YEL
YEL
YEL
YEL
YEL
J533 J240 P240
B1
B2
B3
B4
B5
DC330-[009-040] CLOSE
DC330 [009-041] OPEN
ROS SHUTTER MOTOR
ON +24V CLOCK
DC330-[009-040] CLOSE
DC330 [009-041] OPEN
ROS SHUTTER MOTOR
ON +24V CLOCK
DC330-[009-040] CLOSE
DC330 [009-041] OPEN
ROS SHUTTER MOTOR
ON +24V CLOCK
DC330-[009-040] CLOSE
DC330 [009-041] OPEN
ROS SHUTTER MOTOR
ON +24V CLOCK
DOUBLE
PLUG
1
2
3
4
5
5
4
3
2
1
ZONE
C5
MOT
+24VDC INTERLOCK
6.10 ROS SHUTTER CONTROL
For preventing ROS seal glass from contamination, the shutter is closed
while ROS not in operation.
a. At power on and with interlock closed, ROS Shutter Close is
turned on to close the shutter.
b. 500ms before ROS Write starts earliest for one of the four colors
ROS shutter Open is turned on to open the shutter.
c. When ROS Write ends latest for one of the four colors, ROS
Shutter Close is turned on to close the shutter.
d. In Standby Mode the shutter stays closed. However, with power
off or Interlock open while a job in progress, the shutter stays open.
1
NOTE:
ROS
SHUTTER
MOTOR
PL8.1
7750-275
ZONE
G2
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