Service manual

AR-M351U/M451U, AR-M355U/M455U TROUBLE CODES 11 - 14
4. Other related items
(1) Self diag operation
The machine always monitors its own status. When it detects any
abnormality or a status which requires warning, it performs the self
diag operation to display the trouble or warning message as fol-
lows:
(2) Power ON trouble detection function
• When the power is turned on, if the stored trouble is H3, H4, H5,
U1, U2, PF, or U6 (sub code 2, 3), it is immediately judged as a
trouble.
∗ E7-50 and 60 are not judged as a storing trouble, (Detected
every time when the power is turned on.)
(3) Basic flow of countermeasures
Warning Content This message is displayed to warn
mainly the user to inform that a
consumable part is near life, etc. It is
no direct relation with machine
troubles.
Machine
operation
The machine operation may be
stopped and may be not.
Message
clear
The message may be automatically
cleared by replacement or supply of
the consumable part, or may be
cleared by the specified simulation
operation.
Trouble Content This message is a trouble message
related to a machine trouble.
Machine
operation
The machine operation is stopped.
Message
clear
This message may be automatically
cleared by repairing the trouble, or
may be cleared by the specified
simulation operation.
Trouble code Storing
Trouble cancel command
simulation
H3, H4, H5 PCU SIM 14
U1 ICU SIM 13
U2 Each block SIM 16
PF ICU SIM 17
U6-2, 3 PCU SIM 15
Troubleshoot the cause.
YES
NO
Detects/analyzes
the content.
Trouble/Warning
Warning
Trouble
The machine is stopped.
The content is displayed.
Trouble/Warning
Warning
A consumable
part has reached
its lifetime.
Trouble
Replace or supply
the consumable part.
Cancel the self-
diagnostic message with
the diagnostics
(test commands).
Reset
Standby state
Monitors the machine
conditions.
Repair