Epson ActionLaser Plus User Manual page 176

Error Messages
TONER EMPTY
The developer unit may not be installed properly. Open the printer
and make sure the developer unit is seated properly in the basket.
If the message remains, the toner is low and you must replace the
toner cartridge. See the section on replacing the toner cartridge in
Chapter 6.
CPU ERROR
ERROR 10
ERROR 11
ERROR 12
If one of these error messages appears, follow the steps below.
1. Press the
CONTINUE/RESET
2. If the error does not clear, turn the printer off for at least five
seconds. Then turn it back on.
3. If the problem remains, service is required. Call 1-800-922-8911
for the location of the nearest Epson Customer Care Center.
7-6 Troubleshooting
ERROR 30
ERROR 31
ERROR 32
ERROR 33
button.