Epson AcuLaser MX20DNF - Manual (Page 174)

The printer cannot recognize the USB memory connected to the printer. Check the connection to the
USB memory or replace it with a new one.
Check Paper Size
The paper size setting is different from the size of paper loaded in the printer. Check to see if the correct
size of paper is loaded in the specified paper source.
To clear this error, select Clear Warning from Reset Menu in the Setup menu’s Common Settings.
See “Accessing the each menu” on page 138 for instructions.
Check Paper Type
The media loaded in the printer does not match the paper type setting in the printer driver. Media that
matches only the paper size setting will be used for printing.
To clear this error, select Clear Warning from Reset Menu in the Setup menu’s Common Settings.
See “Accessing the each menu” on page 138 for instructions.
Close ADF Cover
The ADF cover is not closed securely. Open the cover once, and then close it.
Close Cover wwww
The specified cover (wwww) does not close securely. Open the cover once, then close it.
Collate Disabled
Printing by specifying the number of copies is no longer possible due to a lack of memory (RAM). If
this error occurs, print only one copy at a time.
To clear this error, select Clear Warning from the control panel’s Reset Menu. See “Accessing the
each menu” on page 138 for instructions.
Connecting to E-mail Server
The connection test is carried out. The printer is testing a communication to the e-mail server.
Duplex Memory Overflow
There is not enough memory for duplex printing. The printer prints only on the front and ejects the
paper. To clear this error, follow the instructions below.
Epson AcuLaser MX21/MX20 Series User's Guide
Using the Control Panel 174