Inkjet printer and inkjet printing method

Details Inkjet printer and inkjet printing method Inkjet printer and inkjet printing method

1997-07-25

1999-10-05

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 15, B41J 221

Patent

active

059632305

ABSTRACT:
An inkjet printer and inkjet printing method of the present invention discharges inks having different physical properties from a plurality of discharge nozzles. At the moment of discharge, the physical properties of an ink differ from the physical properties of an ink discharged from another nozzle. Specifically, a plurality of ink discharge nozzles individually communicate with separate ink reservoirs and inks having different physical properties may be supplied to said reservoirs, or supply inks having identical physical properties are supplied to said reservoirs and the physical properties of the inks accommodated in said reservoirs differ from the physical properties of inks accommodated in other reservoirs. That is, the differences in physical properties of the inks may be expressed as different discharge amounts when a uniform discharge force is exerted on the ink. When the discharge force is changed, ink drops of a size corresponding to said physical properties are discharged. Accordingly, when the physical properties of inks discharged from a plurality of nozzles are changed, there is an increase in the control range of the size of the ink drops that can be stably discharged, thereby producing a broader range of halftones.

REFERENCES:
patent: 5208605 (1993-05-01), Drake
patent: 5412410 (1995-05-01), Rezanka
patent: 5648801 (1997-07-01), Beardsley et al.
patent: 5751310 (1998-05-01), Yano et al.

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