Target Sensor Fault - Hitachi IJ PH Service Manual

6.3.4 Target Sensor Fault

Target Sensor Fault
Is the target sensor fault
function required?
Yes
Is the "Sensor out timer"
setting is greater than
necessary for the sensor
normal ON time?
Yes
Does the sensor turn
ON and OFF?
Yes
Replace the EZJ95 board.
If the problem is
not fixed
Replace the EZJ93 board.
No
From the printing
specifications screen, select a
"Target sensor timer" setting
of "0000".
No
No
Yes
Clean the sensor to
eliminate any obstacle.
6-25
Select a setting that is
greater than necessary.
Is there any dirt buildup
or other obstacle on the
sensor?
No
Replace the sensor.
Clear the fault.
Resume the
operation.