Sharp SF-1120 Self Diagnostics, Summary/purpose, Operation, Clearing the self diag display

Models: SF-1120 SF-1020

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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 abnormalality is detected by sensors and detectors

The main trouble code is displayed on the copy quantity display

YES

Is there

sub code?

NO

Check the trouble position (Use the suitable simulation)

Press the print key

The sub trouble code

is displayed on the copy quantity display

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

Display clearing procedure

 

 

L1, L3, L4, L5, L8

Turn off/on the power.

 

 

H3, H4

Execute simulation 14.

 

 

U2

Execute simulation 16.

 

 

CH, PC

When the trouble is cancelled,, the display is

cleared.

 

 

 

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Sharp SF-1120, SF-1020 service manual Self Diagnostics, Summary/purpose, Operation, Clearing the self diag display, Ch, Pc