Timing
If the variation in the amount of light received by
the master ejection sensor during the making of 1
plate is less than a certain level (8 in the HELP06
display value), a plate ejection error is deemed to
have occurred.
53
x
Platemaking / Master Feed / Ejection Section
chap.2
2. Rotation Control of the Eject (Roll-up) Motor
If the eject motor is kept rotating when the master tip end is pulled to the ejection box in the plate
detachment process, the drum is actuated by the master and the stop position slips. To prevent this, the
eject motor is stopped when the master is detected by the master ejection sensor. (If the master is not detected
by the master ejection sensor, the eject motor is stopped by the timer.)
(1) Master Ejection Sensor
Description
Photo-emission from the master ejection sensor is
received on the master ejection sensor, and the
sensor detects with the photo strength whether the
master is pulled to the master ejection box.
Photo-receiving amount is checked with the
HELP06.
1. Master Ejection Error Detection
Operation
While one platemaking is being processed, the difference of photo-receiving amount is less than 8 by checking
with the HELP5, which is determined as an master ejection error. The following display and operation are
shown.
2
"PLATE EJECTION ERROR"
is displayed on the LCD panel and printing is not processed.
2
"PLATE EJECTION ERROR"
is cleared with the
ALL CLEAR
key ,
STOP
key pressed.
2
A master ejection error is not detected for one platemaking soon after a plate ejection error or master
setting error is detected.
¡
If incorrect sensing occurs due to sensor malfunction, etc., HELP32 can be used to
prohibit plate ejection error sensing.
IMPORTANT :
Smaller
Larger
Photo-receiving amount
3. Function of Parts
HELP mode H-32
\
see p.261
HELP mode H-06
\
see p.232
HELP mode H-06
\
see p.232
2
HELP mode H-06 value
00
63
2
HELP mode H-06 value
Value without master : the photo receiving amount of
the master ejection sensor at the position where the
first paper jam is detected after starting platemaking.
00
Threshold value
63
Threshold value :
Value without 8
Time
Summary of Contents for Duprinter DP-330
Page 9: ......
Page 11: ......
Page 18: ...c Dimensions chap 1 17 MEMO...
Page 24: ...4 8 2A 2B 2C 44000A1e b Part Names and Their Functions chap 1 23...
Page 152: ...151 MEMO...
Page 193: ...192 MEMO...
Page 329: ...328 x Overall Wiring Layout chap 8 15 Overall Wiring Layout 2 Drive PCB 2 2...
