2123
Cause
Registration of the paper information loaded in the rear tray has not been completed.
What to Do
If the printer's Paper lamp is flashing, registration of the paper information loaded in the rear tray has not been completed.
Select a paper size using the printer's Paper Select button and press the printer's OK button.
Note
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Only A4 or Letter sized plain paper, and 4"x6" photo paper can be registered using the Paper Select button. To register other paper information, use Remote UI.