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BJC-8500
(2) "No ink tank" error
Check installation of
ink tank.
Installed?
Yes
Check ink sensor unit.
OK?
No
Replace ink sensor unit.
OK?
No
Replace encoder film
and encoder head
(carriage board)
No
Install ink tank.
1
J901
Ink Sensor Unit
Logic Board
Measurement Point
Ink Sensor
J901
Interrupted
Pin No. 1
Not interrupted
Yes
END
Yes
END
5-27
Part 5: Maintenance
Std. Value
Approx. 0V
Approx. 4V
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