31 Defective Print Cartridge
What this message means:
A defective print cartridge is installed.
What you can do:
Remove the specified print cartridge and install a new one.
See also:
Replacing the print cartridge
34 Wrong Paper Size in Tray <x>
What this message means:
The printer was expecting to pick a different size paper from the specified tray than what it now detects is moving through the paper path.
What you can do:
•Press Go to clear the message and continue printing. The printer automatically reprints the page that prompted the message.
•Check that the paper size setting on the dial matches the size paper loaded in the tray.
•Verify that the Tray x Size setting in the Paper Menu matches the size paper loaded in the tray.
•Make sure the tray paper guides are in the proper position for the size of the paper loaded.
•Make sure the paper is correctly oriented in the tray.
•Press Menu to open the Job Menu and cancel the current job.
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