Epson WorkForce AL-MX300DN - Manual (Page 179)

The loaded paper and the paper size specified on the control panel do not match. Check the loaded
paper size and the setting on the control panel.
SELF TEST
The printer is currently performing a self test and initialization.
Service Req Cffff/ Service Req Eggg/ Service Req *ffff
A controller error or a print engine error has been detected. Turn off the printer. Wait at least 5
seconds, then turn it back on. If the error message still appears, write down the error number listed in
the LCD panel (Cffff/Eggg/*ffff), turn off the printer, unplug the power cord, then contact a
qualified service representative.
Shake and reinstall Photoconductor
The photoconductor unit may not be installed correctly. Remove the photoconductor unit, shake it,
and then reinsert it. If the error status still remains, turn the printer off and then on again. If this error
persists, consult your dealer.
Shake and reinstall Toner Cartridge
The toner in the toner cartridge may be uneven. Follow the steps below to spread the toner evenly.
1. Open cover A.
2. Turn the lock lever to the release position.
AL-MX300 Series User's Guide
Using the Control Panel 179