RJ-900X series OPERATION MANUAL Troubleshooting
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6.2.4 Command error display and remedies
This section describes the details of the display when a command error occurs and its remedy.
A command error is displayed if a certain failure occurs during analysis of the command data sent from
your PC to the printer.
If a command error occurs, the following error message appears on the operation panel of the printer and
operation stops.
When the cause of the error is solved, the printer starts operating.
• "***" in the error message is the code no. that indicates what type of error occurred.
• The command code representing the error occurred is indicated in [ ].
• For the settings on your PC side, refer to the Operating Manual attached with your PC.
No. Display Description Remedy Reference
1
MH** Error
[ ]
An invalid command has
been sent from the
computer.
Check that the settings on
your PC and the printer are
the same.
4.5 Menu
setup on the
operation panel
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