Note: If the error message remains, then the flash memory device may be defective and need to be
replaced.
Unsupported option in slot [x] [55]
1 Turn o the printer.
2 Unplug the power cord from the electrical outlet.
3 Remove the unsupported option card from the printer controller board, and then replace it with a
supported card.
4 Connect the power cord to a properly grounded electrical outlet.
5 Turn the printer back on.
Cartridge low [88.xy]
You may need to order a toner cartridge. If necessary, press on the printer control panel to clear the
message and continue printing.
Cartridge nearly low [88.xy]
If necessary, press on the printer control panel to clear the message and continue printing.
Cartridge very low, [x] estimated pages remain [88.xy]
You may need to replace a toner cartridge very soon. For more information, see the “Replacing supplies” section
of the User’s Guide.
If necessary, press
on the printer control panel to clear the message and continue printing.
Close front door
Close the front door of the printer.
Imaging unit low [84.xy]
You may need to order an imaging unit. If necessary, press on the printer control panel to clear the message
and continue printing.
Imaging unit nearly low [84.xy]
If necessary, press on the printer control panel to clear the message and continue printing.
Troubleshooting 112
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