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•
The print job is sent from a flash drive that is no longer attached to the USB port.
•
The printer hard disk contains print jobs that were stored when the hard disk was installed in a different
printer model.
From the printer control panel, select Continue to clear the message. For non-touch-screen printer models,
press
to confirm.
Defective flash detected [51]
Try one or more of the following:
•
Replace the defective flash memory card.
•
From the printer control panel, select Continue to ignore the message and continue printing. For
non‑touch‑screen printer models, press
•
Cancel the current print job.
Error reading USB drive. Remove USB.
An unsupported USB device is inserted. Remove the USB device, and then insert a supported one.
Error reading USB hub. Remove hub.
An unsupported USB hub has been inserted. Remove the USB hub, and then install a supported one.
Imaging unit low [84.xy]
You may need to order an imaging unit. If necessary, select Continue on the printer control panel to clear
the message and continue printing. For non‑touch‑screen printer models, press
Imaging unit nearly low [84.xy]
If necessary, select Continue on the printer control panel to clear the message and continue printing. For
non‑touch‑screen printer models, press
Imaging unit very low, [x] estimated pages remain [84.xy]
You may need to replace the imaging unit very soon. For more information, see the "Replacing supplies"
section of the User's Guide.
If necessary, select Continue on the printer control panel to clear the message and continue printing. For
non‑touch‑screen printer models, press
to confirm.
to confirm.
to confirm.
Diagnostics and troubleshooting
113
4514-6xx
to confirm.
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