Hitachi UX2 - Disassembly and Cleaning of Nozzle Orifice

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5.4.2. Disassembly and Cleaning of Nozzle Orifice
Disassembly and cleaning of the nozzle orifice is performed if stream bending or nozzle clogging is not
corrected even after nozzle backwash is performed. The operation procedure is described below.
● You cannot perform this operation during ink ejection. Switch the unit
to the stop state and then perform the operation.
● Do not touch the ejection port of the nozzle orifice directly with your
hands. (Use the supplied tweezers.)
● Damage to the ejection port of the nozzle orifice may prevent it from
functioning. To prevent any damage to the ejection port caused by a
tool, take care to handle the nozzle orifice.
Perform Steps (a) to (d) to remove the nozzle orifice and wash it.
(a) Loosen the set screws, and remove the plus and minus deflection electrodes. To prevent the screws
from dropping, do not loosen them too much.
(b) Loosen the set screw, remove the two screws of the nozzle orifice, and remove the charge electrode.
1
Set screw
Plus deflection electrode
Minus deflection
electrode
Gutter base
When using Safe-Clean Station (Optional
parts), remove the screws of the gutter
base, and remove the gutter base if
necessary.
Screw
Set screw
Charge electrode
Nozzle orifice
Ejection
port