Operation Manual

121 Troubleshooting
Reinstall missing or unresponsive imaging unit [31.xy]
Try one or more of the following:
• Check if the imaging unit is missing. If missing, install the imaging unit.
For information on installing the imaging unit, see the “Replacing supplies” section of the User’s Guide.
• If the imaging unit is installed, then remove the unresponsive imaging unit, and then reinstall it.
Note: If the message appears after reinstalling the supply, then the imaging unit is defective. Replace the
imaging unit.
Replace unsupported cartridge [32.xy]
Remove the toner cartridge, and then install a supported one to clear the message and continue printing. For more
information, see the instruction sheet that came with the supply or see the “Replacing supplies” section of the User’s
Guide.
Note: If you do not have a replacement cartridge, then see the “Ordering supplies” section of the User’s Guide or
visit our Web site.
Replace unsupported imaging unit [32.xy]
Remove the imaging unit, and then install a supported one to clear the message and continue printing. For more
information, see the instruction sheet that came with the supply or see the “Replacing supplies” section of the User’s
Guide.
Note: If you do not have a replacement imaging unit, then see the “Ordering supplies” section of the User’s Guide or
visit our Web site.
Too many trays. Remove some. [58]
1 Turn off the printer.
2 Unplug the power cord from the electrical outlet.
3 Remove the extra trays.
4 Connect the power cord to the electrical outlet.
5 Turn the printer back on.
Solving printer problems
• “Basic printer problems” on page 122
• “Option problems” on page 124
• “Paper feed problems” on page 126