Epson ActionPrinter 4000 User Manual page 191

The paper feed is crooked or the paper jams.
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Make sure the paper supply is not obstructed by a cable or some
other object, and that the paper feeds smoothly into the printer.
Check that the holes on the sides of the paper are aligned with
each other. Also, make sure the sprocket lock levers are locked
and the sprocket covers are closed.
The short tear-ofifunction does not work.
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Make sure DIP switch 2-2 is set to on.
Short tear-off is performed whenever the printer receives a full
page of data or a form feed and no more data is received for
three seconds. Make sure your software sends a form feed at the
end of a document.
Paper Handling
Troubleshooting 7-9