Hitachi UX Twin-Nozzle Technical Manual page 14

(13) When connecting an exhaust duct to the printer, install a damper and adjust the wind velocity at the intake
port to 0.3 to 0.5 m/s. (Use an anemometer for verification. If the wind velocity is too high, the makeup
consumption increases.)
(14) If you try to fix the print head with a magnetic substance (such as iron), the cover switch will
malfunction resulting in an "Cover Open" error.
This, you must only use nonmagnetic resins or metals for fixing the print head.
(15) In the case of carrying the printer proper, use the handles in the drawing below.
2-3 ●Installing Precautions
Connect a duct to this port
(50 mm in diameter).
Exhaust duct
connection port