Troubleshooting - Sharp AR-BC260 Service Manual

[11] TROUBLESHOOTING

[MAIN UNIT]
1. Outline
In case of a trouble in the machine, or when a consumable part
has nearly reached or already reach the lifetime, the machine
detects it, analyze it, and displays it on the display section and
notifies the user and the serviceman by a voice message.
The user and the serviceman are bale to perform the proper coun-
termeasures according to a voice message. In case of a trouble,
the machine is stopped to restrict damage to a minimum in addi-
tion to a voice message.
2. Functions and purposes
1) Assures safety. (The machine is stopped when a trouble is
detected.)
2) Restricts damage to a minimum. (The machine is stopped
when a trouble is detected.)
3) By displaying the trouble content, the trouble position can be
identified immediately and accurately. (An accurate repair
work can be performed, improving the repair efficiency.)
4) By providing a preparatory warning when the lifetime of a con-
sumable part is nearly reached, arrangement of the consum-
able part can be made in advance. (Stopping the machine by
exhaustion of a consumable part is avoidable.)
3. Kinds of self diagnostic messages
The self diagnostic messages are classified as follows:
Class 1 User Troubles and warning messages (paper
jam, consumable part life expiration, etc.)
which can be processed by the user.
Service Troubles and warning messages (motor
trouble, maintenance, etc.) which can be
processed only by a serviceman.
Other
Class 2 Warning Warning messages (consumable part life
expiration, etc.) for the user, which are not
directly related to any machine trouble.
Trouble Related to a machine trouble. The
machine is stopped.
Other
4. Self diagnostic operation
A. Self diagnostic operation and work flow
The machine always monitors its own status.
When the machine detects a trouble, it stops operations and dis-
plays a trouble message.
A warning message is provided mainly when a consumable part is
nearly or completely exhausted.
When a warning message is provided, the machine may be
stopped or may not be stopped depending on the message.
The trouble and warning messages are indicated with the LCD
and lamps.
Some trouble messages may be automatically cleared after
removing the trouble, and some must be cleared with the simula-
tion.
Some warning messages of consumable parts are automatically
cleared when the trouble is repaired. Some other warning mes-
sages must be cleared by a simulation.
The machine is stopped.
—
The content is displayed.
—
Troubleshoot the cause.
diagnostic message with
AR-BC260 TROUBLESHOOTING 11 - 1
Monitors the machine
conditions.
Detects/analyzes
the content.
Warning
Trouble/Warning
Trouble
Warning
Trouble/Warning
Trouble
Repair
Cancel the self-
the diagnostics
(test commands).
Reset
Standby state
A consumable
NO
part has reached
its lifetime.
YES
Replace or supply
the consumable part.