82
b Press Section
chap.2
The press roller is ON (the press roller is pressed to the drum) or OFF by operating the press lever up and
down with the cam inside the drum gear.
Press roller : OFF Press roller : ON
Do not press off later than the hole
section end position since ink
seeps from the bottom end of the
master.
IMPORTANT :
Adjusting the printing area means that the cam
curve goes up and down as shown in the figure. The
timing of drum ON / OFF varies depending on the
cam curve`s up and down. The ON position is before
the drum hole section, so the printing area is not
influenced. (Do not shorten the printing area length
as it is influenced.) The OFF position is only
changed and the printing area is adjusted.
P-roller sensor
Cam
Press roller
Press lever
440309
Press OFF position Press ON position
Drum hole section
end
Drum hole section
start
Printing
area
Printing area
Cancel lever
Signal solenoid
: 423mm
: 355mm
DP-340/330
DP-440/430
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