If a photoconductor unit is already installed, confirm cover D is closed. Otherwise, turn off the printer, open cover D. Remove the photoconductor unit, then reinstall it properly. Close cover D. The error clears automatically if the photoconductor unit is properly installed.
Install uuuu TnrCart
The indicated toner cartridges are not installed in the printer. (The letters C, M, Y, or K appear in place of uuuu and indicate the colors Cyan, Magenta, Yellow, and Black respectively.)
Install the indicated cartridges. See "Toner Cartridge" on page 315.
Install Waste T Box
The waste toner collector is not installed, or is installed incorrectly. If there is no waste toner collector installed, install one in the printer. If there is a waste toner collector already installed, try removing it and reinstalling it. See "Waste Toner Collector" on page 331 for instructions.
Invalid AUX I/F Card
This message means that the printer cannot communicate with the installed optional interface card. Turn off the printer, remove the card, then reinstall it.
Invalid Data
The spool file on the driver is deleted while printing or the data is abnormal. Press the N Start/Stop button to clear the error.
Invalid HDD
Either the optional Hard Disk Drive is damaged or it cannot be used with this printer. Turn off the printer, then remove the Hard Disk Drive.
268Using the Control Panel