Nozzle Orifice Disassembly And Cleaning - Hitachi UX Twin-Nozzle Technical Manual

6.4.2 Nozzle orifice disassembly and cleaning

● This is the processing method when ink stream bending or nozzle clogging is not repaired
even when nozzle backwash was performed.
● Do not perform this work while ink is being ejected. Perform it after setting the IJ printer
to the Stop state.
● Do not touch the ejection port of the nozzle orifice directly with your hand.
(Use the accessory tweezers.)
● If the ejection port of the nozzle orifice is damaged, it may be impossible to
fulfill its function.
Handle the nozzle orifice carefully so that the ejection port is not damaged by the tool.
Remove and clean the nozzle orifice 1. (Use the same procedure for nozzle orifice 2.)
1
(a) Loosen the fixing screw and remove the charge electrode and two deflection electrodes.
To prevent dropping, do not remove the screw.
(b) Remove the two screws holding the charge electrode and remove the charge electrode.
(c) Remove the two screws holding the nozzle orifice.
6-13 ●How to correct ink stream bending and nozzle clogging
Fixing screw
Charge
electrode
fixing screw
Nozzle orifice fixing screw
Nozzle orifice
Charge
electrode
Charge
electrode
Ejection port of
the nozzle orifice