Checking The Plate Pressure And Impression Pressure - Ryobi 3302H Operation Manual

Chapter 2 Periodic Inspection
2. Checking the Plate Pressure and Impression Pressure
When the printing image becomes texture grained or white out occurs, the cause is poor printing pressure (plate pressure
and impression pressure). Follow the procedures below.
Standard nip width
(nun) (inch)
Pressure between the blanket cylinder and plate 5.5-6.0
(Note) The nip width given on the left is
when using the RYOBI blanket and
under blanket.
cylinder (Plate pressure) (0.22 - 0.24")
Pressure between the blanket cylinder and
6.5-7.0
impression cylinder (Impression pressure) (0.26 - 0.28")
Checking procedures - - - - - - - - - - - - - - - - - - - - - - - - - - - - ,
1. Align the plate pressure adjust-
ment scale to the thickness of the
plate.
4. Shift the metering roller release
lever in the direction of the arrow
( ~ position) to release the
metering roller from the water
fountain roller.
2. Align the impression pressure
adjustment dial to the thickness
of the paper.
5. Set the water form roller release
lever ( 1) at the
It]
position.
UNIT
3. Push the unit selection button of
the checking unit.
CYCLE
SET
6. Set the cycle set button on the
delivery section auxiliary switch
panel to the cycle "9".
(Note) After completing the
checking, return it to the
cycle "0".
Maintenance Edition- 21