Table of Contents
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4 Self-test is not normal.
4
Does the printer not
perform at all?
No
Replace printer
mechanism assembly.
OK?
No
Replace main PCB.
END
(*) Confirm the voltage at each terminal in the table below:
Checkpoint
Pin 3 of U2, U3, U4
R54
Yes
Is the output voltage
of the regulator circuit on
the main board within
Yes
END
Replace the mechanism.
Specified value
Approx. 24 V
Approx. 5 V
— 73
the specified
range?(*)
Replace the main PCB.
END
—
No
No
OK?
Yes
END
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Table of Contents
Troubleshooting
