Paper Size & Settings Mismatch
Cause and solution
The paper size setting on the operation panel does not match the loaded paper size.
Match the paper size setting specified in ⋖Paper Settings⋗ and the size of the paper that is actually loaded.
Change the setting of ⋖Paper Settings⋗ to match the loaded paper size.
If printing from a computer, check whether the paper size setting in the printer driver matches the loaded paper size.
Load the paper with the size that is set to ⋖Paper Settings⋗.