Hitachi UX Twin Nozzle - 4 Maintenance of Circulation System; Structure of Circulation System

4-1
4. Maintenance of Circulation System
4.1 Structure of Circulation System
4.1.1 Structure of Circulation System
The general structure of the circulation system is shown in the following figure. Using an
open/close type door (unit door) as a partition, the system is roughly divided into an ink
circulating area (the front side of the equipment) and a driving part area (the rear side of
the equipment).
< Circulation unit: front view >
Ink circulating area
Driving part area
Makeup cartridge
Unit door
Ink filter
Main ink tank
Exhaust duct
Ink cartridge
Circulation Unit
Recovery pump unit
Pressure sensor
Viscometer
Makeup filter
Circulation filter
Recovery filter2
Pressure reducing valve