4
SEQUENTIAL EXPLANATION
DC24V for Drum heating (PU2)
Power cord is plugged in.
ON
ON
S1 ON
H2, H3
Approx. 500
ON
ON
The Cooling Fan turns at half speed.
ON
Only when Paper
Dehumidifying Switch S3 is ON
Drum Dehumidifying
Heater H2
Paper Dehumidifying
Heater H3
ON
B Power Switch S1 is turned ON.
Scanner Reference Position Sensor PC81
*
If the Scanner is not at the home position, Scanner Motor M5
is energized to move the Scanner to the home position.
A The power cord is plugged into the outlet.
DC24V (PU2)
ON
DC5V (PWB-C)
ON
Control panel
ON
The Cooling Fan turns at full speed.
ON
Approx. 500
ON
Fusing Heater Lamp H1
ON
Lens Reference Position Sensor PC90
*
If the Lens is not at the home position, Lens Motor M6 is
energized to move the Lens to the home position.
ON
Mirror Reference Position Sensor PC86
*
If the 4th Mirror is not at the home position, Mirror
Motor M7 is energized to move the Mirror to the home
position.
Approx. 1,000
ON
Prescan by M5
Starter setup and ATDC Sensor automatic adjustment
*
Only when the Imaging Unit is new. I/U Fuse F4 blows when the
starter setup sequence is completed normally.
*Numbers given in rectangles in the following flowchart are timer values
in msec.
M-5
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