Circulation Unit Replacement Procedure - Hitachi IJ RX2 Service Manual

4.7 Circulation Unit Replacement Procedure

1 Perform "Ink drainage" and then "Pressure relief".
2 Turn off the power supply.
3 Perform "4.1.3 Approach to the parts on the rear side of the equipment".
4 Remove the wire connecting part screws (3 positions) of the liquid level
sensor in the main ink tank and the exhaust tube.
5 Remove the plumbing tubes (13 positions) that are connected to the
circulation unit.
"Caution" Take care about an ink drip.
Fixing screw
White
Blue
Black
Exhaust tube
4-15
Main ink tank