Printing continues but 2-sided jobs are printed single sided.
Record the error displayed on the front panel.
Press the i button to view information about the error and record the error code number listed at the end of the information text.
Turn off the printer.
On the back of the printer,
unplug the duplex unit from the printer.
Plug the duplex unit
into the printer. Verify that the plug is securely fastened.
Turn on the printer.
If the problem persists, access PhaserSMARTŪ. PhaserSMART is a powerful Internet-based diagnostic tool that automatically delivers the latest support solutions with a few mouse clicks. (English only)