Check if the printer is not busy processing another print, copy, scan, or fax job.
Is the printer ready?
Go to step 2.
Wait for the printer to finish processing the other job.
Check if the flash drive is inserted into the front USB port.
Note: The flash drive does not work when it is inserted into the rear USB port.
Is the flash drive inserted into the correct port?
Go to step 3.
Insert the flash drive into the correct port.
Check if the flash drive is supported. For more information, see Supported flash drives and file types.
Is the flash drive supported?
Go to step 4.
Insert a supported flash drive.
Check if the USB port is enabled. For more information, see Enabling the USB port.
Remove, and then insert the flash drive.
Does the printer recognize the flash drive?
The problem is solved.
Contact customer support.