Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1998-08-25
2000-08-01
Barlow, John
Incremental printing of symbolic information
Ink jet
Ejector mechanism
B41J 206
Patent
active
060974109
ABSTRACT:
An image forming apparatus includes an ink tank accommodating chargeable developer ink, an ink control layer having a plurality of ink supply holes arranged in a matrix, arranged near the surface of the developer ink and having a lower portion opened in the developer ink, a potential control layer arranged above the ink control layer and having a plurality of ink passage holes arranged in the column direction of the ink supply holes, an opposing electrode arranged opposing to the potential control layer, a power supply unit for applying a potential to the developer ink and an opposing electrode to generate a prescribed potential difference between the developer ink and an opposing electrode, a surface level controller for changing surface level of the developer ink in the ink supply holes for each column of the ink supply holes, and an emission controller for controlling potential of each row of the ink supply holes in the ink passage holes of the potential control layer for controlling ink emission dot by dot.
REFERENCES:
patent: 5036341 (1991-07-01), Larsson
patent: 5912692 (1999-06-01), Kuehnle
Irihara Kouichi
Yamasa Hideo
Barlow John
Conlin David G.
Gamache Richard E.
Gordon Raquel Yvette
Sharp Kabushiki Kaisha
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