Troubleshooting 219
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You may need to increase the amount of printer memory to be
able to print at the desired print quality for your document. For
more information on adding memory, see “Memory Module” on
page 155.
Install Photocondctr
There is no photoconductor unit installed or the photoconductor
unit is not installed properly. Install the photoconductor unit if it
is not installed.
If a photoconductor unit is already installed, open cover B. Raise
the yellow lever and remove the photoconductor unit, then
reinstall it correctly. Then close cover B. The error clears
automatically if the photoconductor unit is installed correctly.
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
161.
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 N/W Module
There is no network program, or the network program cannot be
used with your printer. Contact a qualified service representative.
Irregular Density
The density of the print data is too high to print. Turn off the
printer and remove jammed paper.
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