Hitachi UX Twin Nozzle, Руководство по обслуживанию

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6.3.8 Target Sensor Fault
Target Sensor Fault
Is the target sensor fault
function required?
From “Print specifications”
screen, set the value of
“Target sensor timer” to
“0000”.
Is the “Sensor out timer”
setting is greater than
necessary for the sensor
normal ON time?
Select a setting that is
greater than necessary.
Does the sensor turn
ON and OFF?
Clean the sensor to
eliminate any obstacle.
Replace the sensor.
No
Yes
No
If the problem is
not fixed
Yes
No
No
Yes
Replace the EZJ127 board.
Replace the EZJ133 board.*1
1
Yes
Clear the fault.
Resume the
operation.
Is there any dirt
buildup or other
obstacle on the sensor?
(*1): When you replace EZJ133 board, refer to [Replacement procedures of EZJ133 board] in “3.3.1 EZJ133 board (MPU
board)”.
[Caution]
Be sure to check that there is no wrong connection of harnesses by referring to [Connector numbers and Identifying
method of harnesses] in “3.3.20 Electrical Connection Diagram”.