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[9] SELF DIAGNOSTICS
1. Summary/purpose
This model has the self diag function for the following purposes:
1) When a trouble occurs in the machine, the machine detects the
trouble and displays the trouble content on the copy quantity dis-
play to alert the customer and the serviceman.
2) When any abnormality is detected, the power supply line is cut off
immediately for safety and to protect the machine from damage.
2. Operation
The self diag content is displayed in the following procedure.
A trouble occurs
The abnormality is detected
by sensors and detectors
The main trouble code is
displayed on the copy
quantity display
Is there
sub code?
NO
Check the trouble position
(Use the suitable simulation)
Repair
Turn off/on the power or
cancel the self diag with
simulation 14 or 16
3. Clearing the self diag display
After repairing the trouble section, clear the self diag display accord-
ing to the table below:
Clearing the self diag display
Self diag display
L1, L3, L4, L5,
Turn off/on the power.
L8, U5, F1, F2,
EE, P
H2, H3, H4
Execute simulation 14.
U2
Execute simulation 16.
When the trouble is cancelled, the display is
CH, PC
cleared.
YES
Press the print key
The sub trouble code
is displayed on the copy
quantity display
Display clearing procedure
9 – 1
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