Infinity Solutions 7K Plus, Service Manual

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c) Diagnosing the Paper Jam
Table 1 outlines the different problems which cause paper jams and the symptoms which will help you to identify
the cause.
10.5. Improper Functioning of the Machine
10.5.1 Misaligned Folds
If your forms are running through the machine OK but they’re folding a little bit crooked or are not folding
right on the perforation, you need to adjust the fold plate settings. The location of perforations on forms generally
fluctuates by about 1/16” in either direction. Forms manufacturers do this to avoid the forms sticking together.
Because of this fluctuation, it is sometimes necessary to fine tune the placement of the paper stop on the fold
plates.
The first step is to identify which fold plate is misaligned. Watch the form as it is fed into the machine, and
then compare it to the finished form.
Once you’ve identified which fold plate needs to be adjusted, remove it from the machine. If the fold is
crooked, check to make sure that the paper stop is parallel to the front edge of the fold plate. Check that the
indicator points on the paper stop indicate the same reading on the two scales of the fold plate. Also check the
feed table to make sure that paper guides are set correctly.
If the fold is just a bit off of the perforation, adjust the paper stop by the amount that the fold is off. If the fold
is happening early, then move the paper stop away from the open end of the fold plate. If the fold is happening
late, then move the paper stop towards the open end of the fold plate.
10.5.2 Paper Feed Problems
a) Double Feeds
If the machine is occasionally feeding two forms at once, readjust the feed gauge. (See Section 4)
b) Won’t Feed
If your machine won’t feed forms through:
1. Try reducing the size of the paper stack on the feed table .
a) Adjust the feed table paper guides . (See Section 3)
Problem
Double Feed Buckled Form Bad Fold
Symptom
Unfold the form that caused the
jam, you will find that it is actually
two forms folded together. There will be an extra fold in
form near the correct fold
location. The form which caused the jam
will be folded crooked.
Causes
•
Bad Feed Gauge Setting
•
Too much paper on the feed
table
•
Wrong fold plate setting
•
Feed Table Paper Guide set
improperly
•
Fold Plates set improperly
Solution
•
¼ Turn CCW on feed gauge
adjust screw
•
Check both fold plates. Make
sure they are set to the
correct mark on the scale.
•
Check both fold plates. Make
sure that both paper stops are
square.
Table 1: Paper Jam Diagnostics