RISO Inc. Technical Communications
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CHAPTER 14: MASTER MAKING SECTION
[ 14 - 7 ]
5. Master Set Mechanism
When the master making unit upper cover is closed and the set sensor detects the closed cover, the master
set operation, described below, takes place.
First, the TPH is elevated down against the write roller. Then the write pulse motor rotates the write roller and
master stocker roller to feed the master material forward until the leading edge of the master material is
detected by the master positioning sensor. The write pulse motor stops and the TPH is elevated up. The
write pulse motor rotates again to advance the master material forward 20mm by the rotation of the master
stocker roller and the pulse motor stops.
The TPH is elevated down against the write roller again and the write pulse motor rotates in the reverse
direction to bring the master material back. From the point when the leading edge of the master material
clears away from the detection of the master positioning sensor, the master material continues to come back
5mm distance and the motor stops, and the TPH elevates up. This measurement can be adjusted by test
mode No.540 [Master front-end position adjustment]. The master set operation ends and the master making
unit waits for the master making operation to start.
The master set operation is also performed after each master cut operation, as described below.
After the cutter operates to cut the master material, the TPH elevates down against the write roller. The write
pulse motor activates to send the master material forward until the leading edge of the master material is
detected by the master positioning sensor. The pulse motor stops once, and then rotates in the reverse
direction for 5mm from the point the leading edge of the master material escapes from the master positioning
sensor (adjustable by test mode No.540). The write pulse motor stops and elevates the TPH up. The
master set operation ends and the master making unit waits for the master making operation to start.
1411
Master positioning sensor
TPH (Thermal Print Head)
Master stocker roller (bottom)
Write roller
Master roll
Содержание RZ2xx Series
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