Hitachi PH Instruction Manual page 228

Reinstall the orifice plate.
3
(1) Use the tweezers to hold the O-ring and put it
into the nozzle body.
(2) Use the cleaning bottle and splash a few
droplets of makeup ink on the O-ring.
(3) Insert the orifice plate and use tweezers to
lightly depress the plate from the top.
Notice
Do not touch the ink ejection
hole on orifice plate.
(4) Remove the orifice plate once and make sure
that the O-ring has been installed.
Attach to the groove.
(5) Reinsert the orifice plate, and use the
four screws to secure it.
● Use the four screws to secure the orifice
plate so that the characters on it face up.
Characters
Orifice parts Sxx
● Tighten the four screws little by little alternately.
(6) Reinstall the charge electrode and deflection
electrode.
Ink ejection hole
Upper
Lower
● Correcting a Bent Ink Stream and Clogged Nozzle 7-16
O-ring
O-ring
Charge electrode
Orifice plate
Example for mounting the
orifice parts xx.
xx shows diameter.