Liquid jet recording apparatus using a fine particle dispersion recording composition
AssigneeRicoh Company, Ltd.
InventorTakuro Sekiya
Life of this patent
Estimating the term…
Abstract
In an apparatus producing a high-quality and high-resolution image having high water and light resistances with an orifice having a diameter less than φ25 μm (less than 500 μm2 in terms of cross-sectional area of the orifice) by use of a fine particle dispersion recording composition, nozzle clogging can be prevented. A recording is accomplished by a liquid jet recording apparatus for ejecting a recording composition including dispersed fine particles from a small orifice toward a receiving medium, wherein a size Dp of the fine particles and a diameter Do of the small orifice are determined by a relationship 0.001≦Dp/Do≦0.01.
Claims8
A recording liquid used for a liquid jet recording head that ejects said recording liquid from orifices toward a receiving medium by pressure to accomplish a recording by applying droplets of said recording liquid to said receiving medium, said orifices having a diameter equal to or less than 25 μm, wherein
- said recording liquid is formed by dispersing fine particles into a liquid;
- and
- each of said fine particles has a size Dp determined by a relationship
- 0.001≦Dp/Do≦0.01,
- where Do represents a diameter of said orifices.
A recording liquid used for a liquid jet recording head that ejects said recording liquid from orifices toward a receiving medium by pressure to accomplish a recording by applying droplets of said recording liquid to said receiving medium, said orifices having a diameter equal to or less than 25 μm, wherein
- said recording liquid contains fine particles dispersed into a liquid in a range of 2% to 10% by weight;
- and
- a solid content of said recording liquid including said fine particles is less than 15% by weight.
A recording liquid used for a liquid jet recording head that ejects said recording liquid from orifices toward a receiving medium by pressure to accomplish a recording by applying droplets of said recording liquid to the receiving medium, said orifices having a diameter equal to or less than 25 μm, wherein
- fine particles having a size Dp are dispersed in said recording liquid;
- each of said orifices is a tip of a liquid passageway or formed at an end of said passageway;
- and
- Dp is determined by a relationship
- Dp/t≦0.01,
- where t represents a length of said orifices, each orifice having a uniform cross-sectional area at an outlet portion.
A recording liquid used for a liquid jet recording head that ejects said recording liquid from orifices toward a receiving medium by pressure to accomplish a recording by applying droplets of said recording liquid to said receiving medium, said orifices being formed of resin material having hardness of Rockwell M65 to M120 and having a diameter equal to or less than 25 μm, wherein
- fine particles are dispersed in said recording liquid;
- and each of said fine particles is a pigment having a diameter ranging from 0.02 μm to 0.2 μm.
A recording liquid used for a liquid jet recording head that ejects said recording liquid from orifices toward a receiving medium to accomplish a recording, said orifices having a diameter equal to or less than 25 μm, said recording liquid comprising:
- a liquid;
- and
- fine particles dispersed in said liquid, wherein
- each of said fine particles has a size Dp determined by a relationship
- 0.001≦Dp/Do≦0.01,
- where Do represents a diameter of said orifices.
A recording liquid used for a liquid jet recording head that ejects said recording liquid from orifices toward a receiving medium to accomplish a recording, said orifices having a diameter equal to or less than 25 μm,
- said recording liquid comprising:
- a liquid;
- and
- fine particles dispersed into said liquid, wherein
- said fine particles are in a range of 2% to 10% by weight;
- and
- a solid content of said recording liquid including said fine particles is less than 15% by weight.
A recording liquid used for a liquid jet recording head that ejects said recording liquid from orifices toward a receiving medium to accomplish a recording, said orifices having a diameter equal to or less than 25 μm, said recording liquid comprising:
- a liquid;
- and
- fine particles having a size Dp dispersed in said recording liquid, wherein
- each of said orifices is a tip of a liquid passageway or formed at an end of said passageway;
- and
- Dp is determined by a relationship
- Dp/t≦0.01,
- where t represents a length of said orifices, each orifice having a uniform cross-sectional area at an outlet portion.
A recording liquid used for a liquid jet recording head that ejects said recording liquid from orifices toward a receiving medium to accomplish a recording, said orifices being formed of resin material having hardness of Rockwell M65 to M120 and having a diameter equal to or less than 25 μm, said recording liquid comprising:
- a liquid;
- and
- fine particles dispersed in said recording liquid, wherein
- each of said fine particles is a pigment having a diameter ranging from 0.02 μm to 0.2 μm.
Dependencies are inferred from the claim text.