Hitachi IJ UX, Service Manual

Page: 216 / 308

5-22
5.13 Head base Replacement Procedure
When damaging the head base, the head base must be replaced. Perform it by the following procedure.
１
Remove the head cover and heater cover.
２
Remove the nozzle described in the item 5.7.
３
Remove the deflecting base described in the item 5.11.
４
Remove the sealing valve described in the item 5.4.
５
Remove the heating unit described in the item 5.5.
６
Remove the gutter base described in the item 5.3.
７
Remove the FG and NH sponges
.
８
Remove the fixing screw of the APH sensor board.
９
Unscrew the fastening screw between the head base and the head cable, and remove the head base.
１０
Attach a new head base.
「
Caution
」
(A) Do not mix up lead wires and tubes which each is disposed on the front face (nozzle side)
and the back face (high voltage cable side).
Front face: UXB,D ink-furnishing tube (E), makeup ink tube (R), circulation tube (J), air purge.
UX-E In addition to the above:Gas supply tube(5)
、
Liquid recovery tube (6)
Back face: recovery tube, APH boad power supply wire, FG wire, APH signal wire,
video signal wire, heater feeder wire, cover SW signal wire,
EZJ112
Ａ
board signal wire, high voltage feeder wire
Air purge
E
：
Supply Tube
J
：
Circulation tube
R
：
Cleaning tube
ＵＸ－Ｂ／Ｄ ＵＸ－Ｅ
Air purge
6
E
：
Supply Tube
J
：
Circulation tube
R
：
Cleaning tube
5
：
Gas Supply Tube(Mist collector)
6
：
Liquid recovery tube(Mist collector)