Riso ComColor GD7330

Ink Flow Section. Ink Path Model

1. The ink path is composed of the Print Head, Pressurized Ink Tank, Negative Pressure Ink Tank, Ink Circulation Pump, and Air Pressure Regulator Pump.
2. The Print Head is composed of a piezoelectric element placed in the ink path and a Nozzle Plate attached to that piezoelectric element. The Nozzle Plate has fine, regularly spaced holes in it.
3. Ink drops are ejected by deformation of the piezoelectric element.
4. The ink is circulated, even when printing is not being performed, to regulate the temperature of the ink and to prevent clogging.
5. The source of power for ink circulation is the air pressure difference between the Pressurized Ink Tank and Negative Pressure Ink Tank. The Pressurized Ink Tank is set to a higher pressure than the Negative Pressure Ink Tank, and the ink in the Pressurized Ink Tank flows to the Print Head by the difference in air pressure.
6. The air pressure difference between the Pressurized Ink Tank and Negative Pressure Ink Tank is generated by the Air pressure regulator pump, which maintains the appropriate pressure between the Pressurized Ink Tank and Negative Pressure Ink Tank.
7. The ink that has passed through the Print Head is recovered in the Negative Pressure Ink Tank.
8. The ink in the Negative Pressure Ink Tank flows to the Pressurized Ink Tank by the Ink Circulation Pump.