Hitachi IJ PH Service Manual page 113

5 Remove the removed tube from the fixing clamp.
6 Perform "4.1.3 Approach to the parts on the rear side of the equipment"
and open the unit door.
7 Remove the wires removed in 3 from the fixing clamps.
8 Pull out the tube removed in 4 from the rear side of the equipment.
9 Remove the fixing screws (4 positions) of the print head on the rear side
of the equipment. The print head can be removed from the equipment.
Fixing screw
Print head
Fixing screw
10 Install a new print head by reversing the above procedure.
11 Perform "Ink Replenishment" and adjust the pressure.
Make sure that there is no ink leak.
12 Perform "Excitation adjustment" and "Auto-phase gain adjustment".
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