The Printout Was On The Wrong Side Of The Paper When I Did Duplex Printing; Problems Using Options; Paper Does Not Feed From The Optional Paper Cassette - Epson WorkForce AL-M400DN User Manual

The printout was on the wrong side of the paper when I did duplex printing.

Cause
In duplex printing mode, the back side of the paper is
printed first. However, if Convert to Simplex is set to
On, and a job has an odd number of pages, the last page is
printed on the front side of the paper.
For single page jobs, printing is done on the front side of
the paper whether Convert to Simplex is set to On or 1
Page.

Problems Using Options

To confirm your options are installed correctly, print a configuration status sheet. See "Printing a
Configuration Status Sheet" on page 151 for details.

Paper does not feed from the optional paper cassette

Cause
The paper guides are not set correctly.
The optional paper cassette may not be installed
properly.
The paper source setting may not be correct.
There may be no paper in the paper cassette.
Too many sheets may be loaded in the paper cassette.
The paper size is not set correctly.
AL-M300/AL-M400 Series
What to do
For jobs with three or more pages, set Convert to Simplex to
Off or 1 Page to do duplex printing.
For jobs with just one page, set Convert to Simplex to Off to do
duplex printing.
What to do
Make sure that the paper guides in the optional paper cassettes
are set to the correct paper size positions.
See "Optional Paper Cassette Unit" on page 111 for instructions
on installing an optional paper cassette unit.
Make sure you have selected the proper paper source in your
application.
Load paper into the selected paper source.
Make sure that you have not tried to load too many sheets of
paper. For the maximum paper capacity for each paper source,
see "General" on page 199 (for AL-M300 Series) or "General" on
page 207 (for AL-M400 Series).
Make sure to set the paper guides in the optional paper cassette
correctly.
User's Guide
Troubleshooting 163