Hitachi IJ PH - Ink Drop Charge too Low

6-7
6.2.5 Ink Drop Charge Too Low
Pour a cleaning solution over
the orifice plate surface to
clean it, then allow it to
thoroughly dry.
If the problem is
not fixed:
If the problem is
not fixed:
Ink Drop Charge
Too Low
・ Press the Reset key to clear
the fault.
・Eject the ink to restart the
IJ printer.
１
Does the charge
electrode communicate
with the nozzle end via
ink?
Pour the makeup ink over the
charge electrode and nozzle
area to clean them and allow
them to thoroughly dry.
Is the cumulative ink
use time longer than
the useful ink life?
Replace the ink.
Yes
Yes
Yes
No
No
Is the ink properly
atomized?
Change the excitation
voltage setting to assure
proper atomization.
No
Yes
Is the nozzle clogged
or the ink stream bent?
1
No
Replace the EZJ93 board.
Remove the orifice plate from
the nozzle, subject it to
ultrasonic cleaning, reinstall
it, and adjust the beam.
Execute the “Nozzle
Backwash” function from the
circulation control screen.
If the problem is
not fixed:
Replace the print head.
Is the gutter section
soiled ?
Clean the gutter and its
surrounding area with a
cleaning solution. *1
Yes
No
APH Shield
Gutter
Remove any dirt on this surface:
If this surface is dirty, and the
gutter hole and APH shield are
connected via ink, the APH
signal output may be unstable.
Take special care when using
carbon ink.
* 1
Replace the EZJ98 board.
If the problem is
not fixed: