Cause
What to do
The pickup roller is dirty.
Clean up the pickup roller. For instructions, see “Cleaning the
pickup roller” on page 196.
The optional paper cassette may not be installed
properly.
See “Optional Paper Cassette Unit” on page 186 for instructions
on installing an optional paper cassette unit.
When you make duplex printing from the MP tray, the
standard paper cassette is not installed.
Install the standard paper cassette.
If the MP tray is being used, the MP tray’s pickup roller
may have come off.
Check if the locking lever is in the unlocked position (down). For
the location of the locking lever and pickup roller, see “Inside the
printer” on page 25.
If the locking lever is in the unlocked position (down), the pickup
roller may have come off. In that case, reinstall the pickup roller.
For details, see “Installing the pickup roller” on page 35.
Problems Using Options
To confirm your options are installed correctly, print a status sheet. See “Printing a Status Sheet” on
page 225 for details.
Paper does not feed from the optional paper cassette
Cause
What to do
The paper guides are not set correctly.
Make sure that the paper guides in the optional paper cassettes
are set to the correct paper size positions.
The optional paper cassette may not be installed
properly.
See “Optional Paper Cassette Unit” on page 186 for instructions
on installing an optional paper cassette unit.
The paper source setting may not be correct.
Make sure you have selected the proper paper source in your
application.
There may be no paper in the paper cassette.
Load paper into the selected paper source.
Too many sheets may be loaded in the paper cassette.
Make sure that you have not tried to load too many sheets of
paper. For the maximum paper capacity for each paper source,
see “MP tray” on page 33, “Standard paper cassette” on page 37,
and “Optional paper cassette unit” on page 40.
The paper size is not set correctly.
Make sure to set the paper guides in the optional paper cassette
correctly.
Epson AcuLaser MX21/MX20 Series User's Guide
Troubleshooting
235
