Cause/Detective section
Procedures
Result
CountermeasureItems to be checked
1
Does the scanner stepping motor turn
when it is checked using HELP-010?
YES Follow the procedure
6
.
Scanner stepping motor
5
Replacing the scanner stepping motor.
Is it rotate?
YES Finish.
Drive PCB unit
4
6
Does replacing the drive PCB unit solve
the problem?
YES Finish.
Main PCB unit NO
NO
Check the connector and bundled wire
between the drive PCB unit CN1 and
the main PCB CN19. If OK, replace the
main PCB unit.
Main PCB unit
Slider limit sensor 1
7
Turn the slider limit sensor 1 on and off,
and use a tester to measure voltage.
Is voltage normal?
Turn the slider limit sensor 2 on and off,
and use a tester to measure voltage.
Is voltage normal?
NO
Replace the slider limit sensor 1.
Check the wiring harness. If there is
no problem, replace the main PCB.
YES
Main PCB unit
Slider limit sensor 2
NO
Replace the slider limit sensor 2.
Check the wiring harness. If there is
no problem, replace the main PCB.
YES
8
24V power supply
3
Measure the voltage between CN2-5
and CN2-1 of the 24V power with the
tester. Is the voltage +24V?
NO
Measure the voltage between CN1-1 and
CN1-3 of the 24V power with the tester.
If it is AC100V, replace the 24V power.
Fuse Is the fuse of the drive PCB normal? Replace the fuse.
2
NO
Check with the HELP-010.
Are the slider limit sensor 1 and the
slider limit sensor 2 normal?
Follow the procedure
7
when the
slider limit sensor 1 is defective.
Follow the procedure
8
when the
slider limit sensor 2 is defective.
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