Epson EPL-6000 User Manual page 158

CHANGE DRUM
The drum unit may not be installed properly. Open the printer and
make sure the drum unit is seated properly in the basket. (Press
down simultaneously on the drum unit's two green handles to make
sure the unit has clicked into place.)
Also, the drum replacement cartridge may not be installed. Be sure
to install a new drum replacement cartridge each time you replace
the drum unit.
If the message remains, the drum unit and the drum replacement
cartridge must be replaced. See the section on replacing the drum
unit in Chapter 6.
COVER OPEN
The printer cover is open. Close the cover and press the ON LINE
button to set the printer on line and begin normal printing.
ERROR 20
Not enough memory is available. Press the RESET/CONTINUE button
to continue printing. Your page may be printed as two or more
separate pages. This error can also be cleared by turning the printer
off and back on again. It may be necessary to simplify your print job
by downloading a smaller font, deleting some macros, or using a
lower resolution. You may also wish to purchase the optional 2MB
memory board available for this printer.
ERROR 21
The page is too complex to print. Press the RESET/CONTINUE button
to eject the page and clear the error. This error can also be cleared by
turning the printer off and back on again. Before you continue
printing, simplify the page you are trying to print.
Error Messages
Troubleshooting 7-3