Oki C310dn Maintenance Manual page 157

Oki Data CONFIDENTIAL
(4) Install the image drum unit in the printer so as to situate the K toner cartridge
toward the front of the printer.
Handle (blue)
(5) Close the top cover.
44346001TH Rev.1
Error code: 391
(1) Pull the tray 1 out of the printer.
Handle (blue)
(2) Remove paper.
(3) Insert the tray 1 back into the printer.
7. TROUBLESHOOTING
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