Epson AcuLaser C3000 Series User Manual page 262

You can also add more memory to the printer as described in
"Memory Module" on page 170.
RAM Check
The printer is ready to receive data and print.
In this mode, the remaining amount of the toner cartridge for each
color is displayed in seven levels.
Ready
The printer is ready to receive data and print.
In this mode, the remaining amount of the toner cartridge for each
color is displayed in seven levels.
Replace Photoconductor
The photoconductor has reached the end of its service life. Turn
off the printer, then replace the photoconductor unit with a new
one. See "Photoconductor Unit" on page 187 for instructions.
The error clears automatically after you replace the unit and close
all printer covers. The photoconductor service life counter is reset
automatically.
Replace Toner xxxx
The indicated toner cartridges are out of toner and need to be
replaced. (The letters C, M, Y, or K appear in place of XXXX and
indicate the colors Cyan, Magenta, Yellow, and Black
respectively.)
See "Toner Cartridge" on page 181 for instructions.
Replace TransferUnit
The transfer unit has reached the end of its service life. Turn off
the printer, then replace the transfer unit with a new one. See
"Transfer Unit" on page 198 for instructions.
262
Troubleshooting