Epson EPL-6200 Reference Manual page 359

Either the developer cartridge is not installed or is installed
incorrectly. Check to see if the developer cartridge is properly
installed and follow the instructions under "Developer
Cartridge" on page 306 to install or reinstall it.
Wrong Developer Cartridge Installed
Control panel:
Either the installed developer cartridge is defective, or it is not the
right one for your printer model. Replace it with a new or correct
developer cartridge by following the instructions under
"Developer Cartridge" on page 306.
Installed Developer Cartridge is Not a Genuine EPSON Product
Control panel:
The installed developer cartridge is not a genuine EPSON
product. Installing a genuine developer cartridge is
recommended. Using a non-genuine developer cartridge may
affect print quality. EPSON shall not be liable for any damages or
problems arising from the use of consumable products not
manufactured or approved by EPSON.
Remove the currently installed cartridge and replace it with a
genuine EPSON cartridge by following the instructions under
"Developer Cartridge" on page 306. To continue using the
currently installed developer cartridge, press the N Start/Stop
button to clear the error.
342
Troubleshooting
and Error lights on
v
v and Error lights flashing