Elf Diag Operation And Related Work Flow; Self Diag Message And Troubleshooting [Error Code]; General; Function And Purpose - Sharp AR-M550N Service Manual

[9] SELF DIAG MESSAGE AND TROUBLESHOOTING
[Error code]

1. General

When a trouble occurs in the machine or when the life of a consumable
part is nearly expired or when the life is expired, the machine detects
and displays it on the display section. This allows the user and the ser-
viceman to take the suitable action. In case of a trouble, this feature
notifies the occurrence of a trouble and stops the machine to minimize
the damage.

2. Function and purpose

1) Securing safety. (The machine is stopped on detection of a trou-
ble.)
2) The damage to the machine is minimized. (The machine is
stopped on detection of a trouble.)
3) By displaying the trouble content, the trouble position can be
quickly identified. (This allows to perform an accurate repair,
improving the repair efficiency.)
4) Preliminary warning of running out of consumable parts allows to
arrange for new parts in advance of running out. (This avoids stop-
ping of the machine due to running out the a consumable part.)

3. Self diag message kinds

The self diag messages are classified as shown in the table below.
Class 1 User Warning of troubles which can be recovered by
the user. (Paper jam, consumable part life
expiration, etc.)
Service Warning of troubles which can be recovered
man only by a serviceman. (Motor trouble,
maintenance, etc.)
Other
Class 2 Warning Warning to the user, not a machine trouble
(Preliminary warning of life expiration of a
consumable part, etc.)
Trouble Warning of a machine trouble. The machine is
stopped.
Other
4. Self diag operation
A. Self diag operation and related work flow
The machine always monitors its own state.
When the machine recognizes a trouble, it stops the operation and dis-
plays the trouble message.
A warning message is displayed when a consumable part life is nearly
expired or is expired.
When a warning message is displayed, the machine may be or may
not be stopped.
The trouble messages and the warning messages are displayed by the
LCD.
Some trouble messages are automatically cleared when the trouble is
repaired. Some other troubles must be cleared by a simulation.
Some warning messages of consumable parts are automatically
cleared when the trouble is repaired. Some other warning messages
must be cleared by a simulation.
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AR-M550/M620/M700 SELF DIAG MESSAGE AND TROUBLESHOOTING 9 - 1
Monitors the machine
conditions.
Detects/analyzes
the content.
Warning
Trouble/Warning
Trouble
The machine is stopped.
The content is displayed.
Warning
Trouble/Warning
Trouble
Troubleshoot the cause.
Repair
Cancel the self-
diagnostic message with
the diagnostics
(test commands).
Reset
Standby state
A consumable NO
part has reached
its lifetime.
YES
Replace or supply
the consumable part.