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Suggestions for Preventing Jams
The best way to prevent jams is to use forms and applications that were designed
for use with the printers. Form and application problems cannot be corrected by
adjusting or repairing the printer.
If a particular form jams frequently, refer the application owner to the Forms Design
Reference for Continuous Forms Advanced Function Printers. This book contains
detailed information about selecting forms and designing applications for use with
continuous-forms printers.
It is also important to ensure that the forms are loaded correctly. To prevent jams
from happening, do the following:
v Ensure that the forms are not being damaged in one of the following areas:
– Forms input area
– Before they reach the transfer corona within the printer engine
– In the Buffer/Flipper Unit between the printers when they are in duplex
mode.
v Ensure that the perforations have ties at the ends, not cuts.
v Ensure that the back sides of the forms do not have dark colors or markings
when you use simplex mode. Also ensure that both sides of the forms do not
have dark colors or markings when the printers are in duplex mode.
v If you are using fan-fold forms, ensure that the folded or leading edge is not
wrinkled or torn.
v If you are using fan-fold forms and the first page is folded under, ensure that
the tractor holes line up exactly. This is especially important if you are using
forms with a ¹/₃-inch or ²/₃-inch length.
v Ensure that the tractor holes are aligned correctly on the tractor pins.
v Ensure that the forms are positioned correctly in the forms input area. The forms
must not twist or tear when they travel around the forms guide and through the
transfer station.
v If the forms are in a box, ensure that the box does not interfere with form
movement.
v If you are using fan-fold forms and the stack of forms seems to curve (dishing),
roll the first form in the opposite direction of the curve. Then unroll it before
you put the form on the transfer station lower tractors.
v Load different forms, or if you are using fan-fold forms, a new box of the same
forms. Ensure that the forms are loaded correctly.
v If the jam occurs only with one kind of form, especially one that has not been
used before on the printers, the problem may be form-related. Forms that are
unusually heavy or light, forms that have holes or cuts, and adhesive-label
forms are all likely to cause jams.
Forms orientation may have an effect on stacking and jam frequency. On
non-preprinted forms:
– If you are using fan-fold forms, rotating the box 180° can change the
frequency of jams.
– Remove damaged sections.
v If you are using fan-fold forms and you folded back the first page of the form,
try loading the form without folding. Conversely, if you did not fold the form, try
doing so.
144 InfoPrint 3000 Operator’s Guide