Oki C5400 Guide: Handy Reference C5400 Series (American English) - Page 45
Check Fuser Unit, Fuser Unit Missing, Disk File System Full, Press Online Sw, Invalid Data - oki fuser unit
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Error Messages (cont.) CHECK FUSER UNIT 320: FUSER UNIT MISSING The fuser is not properly installed. What to Do Open the top cover and check the fuser: 1. Press down on the fuser to be sure it is firmly locked in place. The message should disappear. Note: If the message still appears, push the blue latches at either end of the fuser back (toward the printer cover hinge) and lift the fuser out, then lower it back into the printer, pushing it firmly down in place. You should feel the latches at either end engage. 2. Close the cover. DISK FILE SYSTEM FULL The printer's internal hard drive does not have enough memory to print the current job. What to Do Either print out or delete some of the files already on the printer's hard drive (see pages 20 and 21). Note:You can also use the OKI Storage Device Manager utility to clean up the printer's hard disk drive. See your on-line User's Guide for more information. PRESS ONLINE SW INVALID DATA The hard disk drive is not available and job spooling cannot take place. What to Do Press the ON LINE button. 44