Epson WorkForce AL-MX300DN - Manual (Page 181)

Saving data to the specified shared folder on the network failed. Unsupported characters are used to
specify the user name.
There is no A4, A5, LT or LGL sized paper
You selected a paper source that does not have A4, A5, LT, or LGL size paper for layout copying. Check
to see if the correct size of paper is loaded in the specified paper source.
Toner Cartridge Error
There is a problem with the toner cartridge. Remove the toner cartridge and reinsert it. If that fails to
clear the error, replace the toner cartridge with a new one. For details about replacement, see the
instructions that come with the toner cartridge.
Toner Low
This message indicates that the toner cartridge is near the end of its service life. Prepare a new toner
cartridge.
Unable Clear Error
The printer cannot clear an error message because the error status still remains. Try solving the
problem again.
Unable to scan because PC-FAX is saving files
The PC-FAX operation might be performed. Finish the PC-FAX operation, and then try to send the
fax again.
Unable to Transmit Fax
Unable to perform fax transmissions. This message appears when you send a fax manually. When
sending a fax using the memory transmission function, the message does not appear.
Unable to Transmit Fax
A fax communication error occurred during transmission. Wait for a few minutes and try again. Also
make sure that the fax number is correct.
Unsupported USB Device xxx
Unsupported USB device is connected.
AL-MX300 Series User's Guide
Using the Control Panel 181