Hitachi IJ UX Instruction Manual page 230

Set a new cartridge bottle in the specified position.
5
Set the boss provided on the cartridge bottle to the boss guide of the ink supply port.
● If ink has accumulated on the pipe surface, wipe it up using wiping paper
dampened with makeup.
● If a foreign object such as a screw is found or gets in the ink supply port,
remove it.
8-6 ●Replenishing the ink
Boss
Ink side
Ink supply port
Boss guide
Pipe
CAUTION
Be careful not to damage
the pipe surface.
Set a new cartridge bottle.
Set the boss to the guide.