Individual Master Removal Operations; [Removed Master Vertical Transport Operation] - Riso RN SERIES Technical Manual

2.

Individual Master Removal Operations

[Removed Master Vertical Transport Operation]

Print drum angle
Position A ON
sensor
OFF
Master removal ON
sensor
OFF
Master
ON
compression
OFF
sensor
Master removal
ON
motor overload
OFF
current
ON
Main motor
OFF
Master removal ON
motor
OFF
When ON: Position A sensor: Blocked, Master removal sensor: Open, Master compression sensor: Open
The removed master vertical transport operation starts after the print drum clamp plate releasing
operation ends.
(1) The master compression sensor is checked on starting, and the master compression plate is
initialized if it is OFF.
(2) The master removal motor overload current is monitored continually at 100 ms intervals during the
Removed master vertical transport operation, and error message [T12-300] is displayed if an
overload current is detected three times in succession.
(3) The main motor and master removal motor are operated to vertically transport the removed master
while rotating the print drum.
The print drum speed here corresponds to the value set in Test mode No. 387 (initially 15 rpm).
(4) The progress of the removed master is checked twice by the master removal sensor at print drum
angles a° and b°, and is judged to be normal if the sensor is ON at both points. If it is OFF at one
point, error message [A04-303] is displayed.
(a = value set in Test mode No. 380 (initially 70°))
(b = value set in Test mode No. 381 (initially 90°))
(5) The print drum stops at position A, and the master removal motor stops after d ms. The master
removal sensor is checked here, and error message [A04-304] is displayed if it is ON.
(d = value set in Test mode No. 382 (initially 0 s))
0° a° b°
(4)
(1)
100 ms 100 ms 100 ms
c rpm
(3)
RN (Version 1.0)
CHAPTER 14. TIMING CHARTS
INDIVIDUAL MASTER REMOVAL OPERATIONS
180°
OFF-OFF (Error: 303)
(2)
14 – 19
320° 0°
ON
(Error: 304)
10 rpm
(5)
d ms
A