Konica Minolta bizhub 350 Quick Manual page 78

Troubleshooting
Note
Up to 29 document print jobs (including "Proof Print" and "Secured
Print") can be stored in the memory of this machine. If more than 29 jobs
are stored, new jobs cannot be received. Check whether there are print
jobs remaining in "Proof Print" and "Secured Print" in Box mode on this
machine's control panel. If jobs are remaining, print or delete the stored
jobs.
If the problem persists after all of these procedures have been performed,
read the User's Guide [Copy Operations].
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