RISO Inc. Technical Communications
us.riso.com
CHAPTER 6: PRESS SECTION
[ 6 - 2 ]
Clamp plate base
Pressure cam
Print drum
Pressure lever;spring
Pressure spring
Pressure lever;cam
Pressure shaft
Main motor
Solenoid lever
Pressure solenoid
0601
Mechanism
1. Press Mechanism
At the start of a printing job, the pressure solenoid turns ON when the print drum rotates to a given angle, and
tries to unhook the solenoid lever away from the pressure lever;cam which is still engaged until the print drum
makes further rotation.
As the print drum continues to rotate, the cam follower on the pressure shaft;cam start to ride on the high
portion of the pressure cam, making the pressure lever;cam to swing in the clockwise direction with its pivot
on the pressure shaft. As the lever starts to ride on the highest point on the cam, it touches and starts to
swing the pressure lever;spring in the clockwise direction. As the pressure lever;spring swings in the clockwise
direction with the pivot at the pressure shaft, the solenoid lever disengages and allows the pressure solenoid
to pull the solenoid lever further in, completely disengaging it from the pressure lever:spring.
As the print drum rotates further, the pressure lever;cam starts to ride on the lower portion of the pressure
cam, causing the lever to swing back in the counterclockwise direction. The pressure lever;spring, freed
from the pressure lever;cam, is pulled by the pressure spring to rotates in the counterclockwise direction,
rotating the pressure shaft in the counterclockwise direction together. The counterclockwise direction rotation
of the pressure shaft lifts the pressure roller up and press against the print drum.
When the clamp base plate of the print drum approaches the pressure roller, the pressure cam pushes the
pressure lever;cam in the clockwise direction and lowers the pressure roller so the roller does not hit the
clamp plate.
The pressure solenoid is kept ON all through the printing job. The solenoid goes OFF when the print drum
comes to a given angle at the end of the printing job.
Summary of Contents for RZ2xx Series
Page 16: ...RISO Inc Technical Communications us riso com CHAPTER 1 MAINTENANCE 1 14 MEMO ...
Page 36: ...RISO Inc Technical Communications us riso com 2 20 CHAPTER 2 MACHINE SUMMARY ...
Page 38: ...RISO Inc Technical Communications us riso com 2 22 CHAPTER 2 MACHINE SUMMARY MEMO ...
Page 52: ...RISO Inc Technical Communications us riso com CHAPTER 3 MAIN DRIVE 3 14 MEMO ...
Page 78: ...RISO Inc Technical Communications us riso com CHAPTER 4 FIRST PAPER FEED SECTION 4 26 MEMO ...
Page 98: ...RISO Inc Technical Communications us riso com CHAPTER 5 SECOND PAPER FEED SECTION 5 20 MEMO ...
Page 190: ...RISO Inc Technical Communications us riso com CHAPTER 10 MASTER REMOVAL SECTION 10 22 MEMO ...
Page 272: ...RISO Inc Technical Communications us riso com CHAPTER 14 MASTER MAKING SECTION 14 40 MEMO ...
Page 278: ...RISO Inc Technical Communications us riso com 15 6 CHAPTER 15 OTHER PRECAUTIONS MEMO ...
Page 312: ...RISO Inc Technical Communications us riso com CHAPTER 16 PANEL MESSAGE 16 34 MEMO ...
Page 360: ...RISO Inc Technical Communications us riso com CHAPTER 19 WIRING DIAGRAM RZ2 SERIES 19 14 MEMO ...
Page 374: ...RISO Inc Technical Communications us riso com ...