Hitachi IJ PH - Main Ink Tank too Full

6-4
6.2.2 Main Ink Tank Too Full
Main Ink Tank Too Fill
Is the ink main tank full
of ink?
Has the Main Ink Tank
Too Fill fault
frequently occurred?
Yes
No
Replace the MV7 (makeup
ink valve) unit.
Check the initial-
level sensor
connection again and
correct it if necessary.
Drain the ink from the
ink main tank, execute
the ink refilling
procedure, and clear
the fault by pressing
the Clear key.
No
Yes
Yes
Open the maintenance cover.
Turn OFF the power and then
pull out the sensor .
No
Is the initial-level sensor
ON?
No
Replace the EZJ93 board.
Yes
Is there a creepage leak
between the ground
electrode and the over fill
electrode of liquid level
detection of the main tank?
(Check it by mounting and
removing the harness.)
Remove the ink
adhering onto the
creepage surface
between the two
electrodes. Or replace
the top lid of the main
ink tank.
Is the fault cleared
by power-on reset?
Yes
No
END