5-5
TU-01
Part 5: Maintenance
2. TROUBLESHOOTING
This product has no detection capability, and so doesn't provide any error-related
functions such as displaying error codes/error messages, and reporting errors to the
printer.
The following sections use flowcharts to describe the analysis and troubleshooting
tasks when problems occur during the paper winding operations.
<Cause>
The signal has not been sent from the operation switch
to the PCB.
<Probable faulty component>
The operation switch unit, and/or the PCB.
<Symptom>
The paper winding by the FEED/FORWARD switch fails, although the automatic paper
winding by the paper sensor in AUTO mode has operated correctly (in this case, the
paper winding by the FEED/FORWARD switch will not work in MANUAL mode).
<Action>
Check the FEED/FORWARD
switch visually.
OK?
OK?
Te s t
c o n t i n u i t y
o f
t h e
FEED/FORWARD including
cable and connector.
Yes
No
Yes
No
The PCB is failed.
END
The operation switch unit is failed.
Replace it.
Use a multimeter to check the continuity/
of the switch.
Check for a loose connection or damage.
The operation switch unit is failed.
Replace it.
Replace it.
1. FEED/FORWARD
will not work.
Содержание BJ-W9000
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