4 Connect the power cord to a properly grounded electrical outlet.
5 Turn the printer back on.
Tray [x] paper size unsupported
The paper size in the specified tray is unsupported. Replace it with a supported paper size.
Unformatted flash detected [53]
Try one or more of the following:
• From the printer control panel, press to stop the defragmentation and continue printing.
• Format the flash memory device.
Note: If the error message remains, then the flash memory device may be defective and need to be replaced.
Unsupported disk
An unsupported disk has been inserted. Remove the unsupported disk, and then install a supported one.
Unsupported option in slot [x] [55]
1 Turn off the printer.
2 Unplug the power cord from the electrical outlet.
3 Remove the unsupported option card from the printer controller board, and then replace it with a supported card.
4 Connect the power cord to a properly grounded electrical outlet.
5 Turn the printer back on.
USB port [x] disabled [56]
Try one or more of the following:
• From the printer control panel, select Continue to clear the message and continue printing.
The printer discards any data received through the specified serial port.
• Select Reset active bin to reset the active bin for a linked set of bins.
• Make sure the USB Buffer menu is enabled.
Solving printer problems
• “Basic printer problems” on page 182
• “Hardware and internal option problems” on page 184
• “Paper feed problems” on page 188
Troubleshooting 181
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