Canon imageCLASS MF7280 Printer Manual page 39

The machine does not work.
Cause
Remedy
You cannot print a job or store a job.
Cause
Remedy 1 Delete other processes, cancel other jobs being processed, or wait until those
3
Remedy 2 Divide the job, then print again.
Paper excessively curled after coming out of the machine.
Cause
Remedy
3-4
Printing Problems
There is a problem with the machine or the software.
Look at the message on the touch panel display and act accordingly.
The total number of pages in all jobs has exceeded the limit which can be
processed.
jobs are finished, then print again.
You may be using paper that curls too easily.
Ensure that the paper you are using meets the specifications. Remove the
paper stack, turn it over, reload in the drawer and try again. (See Chapter 2,
"Basic Operations," in the Reference Guide.)