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TIPS FOR PAPER FEED
SETUP...
Machines this applies to:
Ryobi 2800, 3200, 3200MCD; Itek 960, 975, 985
Here are some tips to help you set up
your feeder for most papers:
- Pile height. The
sheet separator brackets are marked with a box or three lines showing the
proper pile height. For lightweight papers like NCR set the pile
height to the bottom line or bottom of the box. For 20-24 lb. paper
set the height at the middle line. For the heaviest papers, like 110
lb. index, set the height at the top line.
- Blower setting.
With the press idling, turn on the pump switch and adjust the blower so the
top sheet just barely floats up to the sheet separators.
- Sucker feet.
On 24 lb. or lighter paper open all of the suction valves that are on the
sheet and remove all rubber suckers. For heavier papers, open every
other valve and use rubber suckers only on the open tubes. You should
never put rubber suckers on every tube.
- Suction setting.
If you're feeding lightweight paper with no suckers, turn the suction all
the way up. If you're setting up a paper that requires rubber suckers,
turn the suction down, put the press in feed mode, and gradually turn up the
suction till it picks up a sheet, then about a half-turn more.
The above combination of every other
sucker and careful suction level adjustment can dramatically improve feeding
consistency and registration with heavier papers. Here is some more
helpful feeder information:
- The standard position for the bale
bar is 80mm (about 3 1/4") back from the sheet separator bracket.
This should work for most paper sizes.
- The sheet separator adjustment is
also important. It should be set 6mm (1/4") above the bottom of
the notch and it should protrude out 4-5mm (about 3/16") from the face
of the bracket. Use care when mounting to ensure that it doesn't drag
on the sides of the notch. It should be able to easily move out of the
way to allow a sheet to pass and then freely snap back into position.
- If most papers feed well for you but
you have a bad time with light to medium weight glossy stocks (especially
11X17) a back blower accessory may help. Coated stocks fit so tight in
the pile that the front air blast doesn't separate them well enough causing
the press to try to pick up two sheets at a time and sometimes drive the top
sheet down in front of the paper pile. This acts much like a static
problem but usually is not static-caused.
If your press still
doesn't feed well with these techniques, it may need the timing adjusted or worn
parts replaced.
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troubleshooting selections below and select a topic:
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Copyright
©
Tom Jonas
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