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US 6,679,597 B2Granted
Inkjet printing method and printing apparatus
AssigneeFuji Photo Film Co., Ltd.
InventorsSadao Ohsawa, Yusuke Nakazawa, Mutsumi Naniwa
Life of this patent
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Abstract
Inkjet printing method having the following steps: ejecting an oily ink comprising particles to a printing medium with use of an electrostatic field according to image data signals to form an image directly on the printing medium; and fixing the image to obtain a printed matter, wherein a prevention of an aggregation and/or a precipitation of the particles is conducted at least during ink circulation, or an aggregate and/or a deposit of the particles formed at least due to a suspension of ink-flow is redispersed.
Claims15
Inkjet printing method comprising:
- ejecting an oily ink comprising particles to a printing medium with use of an electrostatic field according to image data signals to form an image directly on the printing medium;
- and
- fixing the image to obtain a printed matter,
- wherein a prevention of an aggregation and/or a precipitation of the particles is conducted at least during ink circulation, or
- an aggregate and/or a deposit of the particles formed at least due to a suspension of ink-flow is redispersed.
2 more elements
An inkjet printing apparatus comprising:
- an image-forming means for forming an image directly on a printing medium according to image data signals;
- and
- an image-fixing means for fixing the image formed by the image-forming means to produce a printed matter, the image-forming means being an inkjet recording unit comprising a recording head that ejects an oily ink comprising particles with use of an electrostatic field,
- wherein at least one aggregation and/or precipitation-preventing means is equipped in an ink-flow channel of the oily ink in an ink circulation, the aggregation and/or precipitation-preventing means being for a prevention of aggregation and/or precipitation of the particles, or
- a redispersing means is equipped, the redispersing means being for redispersing of the particles which are in a state of aggregation and/or precipitation formed due to a suspension of ink-flow.
2 more elements
Dependencies are inferred from the claim text.