Step 1 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. |
Step 2 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. |
Step 3 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. |
Step 4  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. |