Epson EPL-N7000 Reference Manual page 359

Paper Cassette Jam
A paper jam has occurred in the optional 500-Sheet Universal
Paper Cassette Unit A3. Remove the jammed paper from the unit.
See "Clearing Jammed Paper" on page 277 for instructions.
Paper Jam
A paper jam has occurred in the printer. See "Clearing Jammed
Paper" on page 277 for instructions.
Paper Jam in Duplex
A paper jam has occurred in the optional Duplex Unit. Remove
the jammed paper from the unit. See "Clearing Jammed Paper"
on page 277 for instructions.
Paper Jam in Mailbox
A paper jam has occurred in the optional 4-Bin Mailbox. Remove
the jammed paper. See "Clearing Jammed Paper" on page 277 for
instructions.
Paper Out XXX YYY
There is no paper in the specified paper source (XXX). Load paper
of the indicated size (YYY) into the paper source.
Paper Set XXX YYY
The paper loaded in the specified paper source (XXX) does not
match the required paper size (YYY). Replace the loaded paper
with the correct size paper and press the N Start/Stop button to
resume printing. Or press the + Cancel Job button to cancel the
print job.
If you press the N Start/Stop button without replacing the paper,
the printer will print on the loaded paper even though it does not
match the required size.
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Troubleshooting