Read Sharp MX-DEX2 (serv.man11) Service Manual online
MX-DEX1/DEX2 SELF-DIAGNOSIS AND TROUBLE CODES 9 – 2
<Button Description>
2. Self-diagnosis
When a trouble condition occurs in the machine or when there is a
consumable part whose life is nearly or already expired, the
machine's self-diagnosis program detects and analyzes the condi-
tion and issues the appropriate notification on the display panel so
that the user and the serviceperson can take the suitable action. In
the case of a trouble condition (rather than the expiration of a part's
life), the self-diagnosis program not only issues the appropriate
notification but also stops the machine to minimize damage.
consumable part whose life is nearly or already expired, the
machine's self-diagnosis program detects and analyzes the condi-
tion and issues the appropriate notification on the display panel so
that the user and the serviceperson can take the suitable action. In
the case of a trouble condition (rather than the expiration of a part's
life), the self-diagnosis program not only issues the appropriate
notification but also stops the machine to minimize damage.
A. Functions and Objectives
1)
Ensures safety by stopping the machine as soon as a trouble
condition is detected.
condition is detected.
2)
Minimizes damage to the machine by stopping the machine as
soon as a trouble condition is detected.
soon as a trouble condition is detected.
3)
Displays the description of the trouble condition so that the
user or serviceperson can quickly and accurately identify the
source of the trouble. This helps the serviceperson to perform
repair work most effectively and efficiently.
user or serviceperson can quickly and accurately identify the
source of the trouble. This helps the serviceperson to perform
repair work most effectively and efficiently.
4)
Issues an alarm when there is a consumable part whose life is
nearly expired so that the user can order the consumable part
before its life is actually expired. This helps prevent machine
outage due to the absence of a consumable part.
nearly expired so that the user can order the consumable part
before its life is actually expired. This helps prevent machine
outage due to the absence of a consumable part.
B. Types of Self-diagnosis Messages
Self-diagnosis messages can be classified into the following types:
C. How Self-diagnosis Works
(1) Self-diagnosis and Troubleshooting Workflow
The self-diagnosis program built in the machine is always the mon-
itoring machine function.
When the self-diagnosis program detects a trouble condition, it
stops the machine and displays the appropriate trouble message.
Typically, warning messages are displayed when there is a con-
sumable part whose life is nearly or already expired.
Some warning messages are displayed without machine stoppage,
while other warning messages are displayed at the same time as
machine stoppage.
Trouble and warning messages are displayed on the LCD with one
or more specific indicator lamps lit or flashing.
Some trouble messages are automatically cleared upon recovery
from the trouble, while other trouble messages must be cleared
using the corresponding SIM.
Also, some of warning messages associated with consumable
parts are automatically cleared upon replacement or refill of the
consumable part, while other messages must be cleared using the
corresponding SIM.
itoring machine function.
When the self-diagnosis program detects a trouble condition, it
stops the machine and displays the appropriate trouble message.
Typically, warning messages are displayed when there is a con-
sumable part whose life is nearly or already expired.
Some warning messages are displayed without machine stoppage,
while other warning messages are displayed at the same time as
machine stoppage.
Trouble and warning messages are displayed on the LCD with one
or more specific indicator lamps lit or flashing.
Some trouble messages are automatically cleared upon recovery
from the trouble, while other trouble messages must be cleared
using the corresponding SIM.
Also, some of warning messages associated with consumable
parts are automatically cleared upon replacement or refill of the
consumable part, while other messages must be cleared using the
corresponding SIM.
Button
Description
DTRC
Desk transport clutch
Classification
1
1
User
This type includes user-recoverable
trouble or warning conditions (such as
paper jam or consumable part life
expiration).
trouble or warning conditions (such as
paper jam or consumable part life
expiration).
Service
This type includes serviceperson-
recoverable trouble or warning
conditions (such as motor trouble or
maintenance).
recoverable trouble or warning
conditions (such as motor trouble or
maintenance).
Miscellaneous
—
Classification
2
2
Warning
This type includes those messages that
are primarily intended to warn the user
and not directly related with machine
trouble (such as a warning message
issued when there is a consumable part
whose life is nearly expired).
are primarily intended to warn the user
and not directly related with machine
trouble (such as a warning message
issued when there is a consumable part
whose life is nearly expired).
Trouble
This type includes those messages that
are directly related with machine trouble
and issued at the same time as machine
stoppage.
are directly related with machine trouble
and issued at the same time as machine
stoppage.
Miscellaneous
—
Repair
Monitor machine function
Detect and analyze trouble
Trouble/warning
Trouble/warning
Stop the machine
Identify the cause
Cancel self-diagnosis
message using "diag"
(test command), etc.
Standby
Consumable part
life expired?
Replace or refill the
consumable part
Recovery
Display the trouble
description
Trouble
Trouble
Warning
Warning
YES
NO
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