Specifications

Rockhopper II series printers – Maintenance Manual
279
AP-74065, Rev. 1.2, 27/09/04
9.2.5. Command errors
The following explains the messages, items to be confirmed and remedies to take when command errors
occur while the product is operating.
Command errors are displayed when trouble occurs during analysis of the command data that is sent to this
product from the computer.
If a command error occurs, the following error messages are displayed and the printer stops.
Solve the problem to delete the error message and restart the printer.
No. Message Phenomenon Check point Action Refer to
1 MH01 error
command [ ]
Undefined ESC: A
command that has
not been defined in
command modes
was analyzed.
2 MH02 error
command [ ]
Parameter error :
Number of
parameters
following command
is incorrect.
3 MHO3 error
command [ ]
Numeric error :
Number of
parameters
following command
is incorrect.
4 MH04 error
command [ ]
Undefined letter set:
Letter sets that
should not exist (do
exist).
5 MH05 error
command [ ]
Buffer overflow:
Polygon buffer or
downloadable
character buffer
overflows.
(1) Check the
printing data for
contents that may
be judged as an
error.
(2) The Mainboard
assembly may
have a problem.
• Try a different
drive for the
application
• Replace
Mainboard
assembly
→ Replacing the
Mainboard
assembly,
HDD_Extension
board assembly,
HEAD_DRV
board assembly
and cooling fan
assembly.
Notes :
¾ The command codes for errors may be indicated between brackets [ ].
¾ For the settings on a computer, refer to the computer's operation manual.