Hitachi UX Twin Nozzle Service Manual page 193

Remove the piping connections with the printhead (5 locations: refer to the figures below)
5
at the front of Circulation unit.
(Loosen the tube lock and pull out the tube.)
[Caution] Apply wiping paper at the ends of the tubes for ink dripping.
Recovery filter2
Recovery line (upper)
Recovery filter
（Mark A）
Supply line
（Mark E）
Makeup line
（Mark R）
Recovery line
Circulation line
（Mark 7）
（Mark J）
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