摘要:
An ink jet recording apparatus includes a liquid passage for ejection of ink; a liquid chamber for supplying ink to the passage; a device for mounting the recording head on the ink jet recording apparatus at an angle not more than 45 degrees relative to the horizontal plane; wherein the chamber has an internal surface which is slanted in a direction from an ink inlet thereof toward the liquid passage at the angle of 5-40 degrees relative to an extension of the liquid passage.
摘要:
An ink jet head includes a plurality of ejection orifices for ejecting ink; a common liquid chamber for storing temporarily the ink to be supplied to each of the ejection orifices; a plurality of ink passages, being separated by liquid passage walls, and each of which connects one of the ejection orifices to the common liquid chamber; and a plurality of energy generating elements provided one for one in each of the ink passages for generating energy to eject the ink from each of the ejection orifices; wherein the ejection orifices are grouped into a plurality of control blocks comprising a predetermined number of the ejection orifices in sequence so that the energy generating elements are driven by the block; and wherein walls are provided in the common liquid chamber, at the dividing lines between the control blocks, for impeding the ink movement in the liquid chamber, between the adjacent blocks.
摘要:
A process for producing a printing medium is disclosed wherein a composition is applied to a substrate and cured by heat treatment, said composition comprising a water soluble cationic polymer (P1) selected from the group consisting of polymer (A) obtained by the addition polymerization of epichlorohydrin and a dialkylamine or dialkanolamine; polymer (B) derived from the addition polymerization of a glycidyl groups-terminated hydrophilic oligomer and an asymmetric diamine, dialkylamine or dialkanolamine; acrylic polymer (C) with a cationized hydroxyl group-containing molecular side chain; and polyvinyl alcohol (D) with a cationized hydroxyl group-containing molecular chain; and a condensable functional group-containing polymer (P2) selected from the group consisting of alkylolacrylamide copolymer and a hydrolyzable trialkylsilyl group-containing copolymer.
摘要:
Provided is a composition curable by active energy rays, comprising a cationic polyacryloyl compound having two or more acryloyl groups and one or more cation groups in a molecule, represented by any of General Formulae (1) to (6) ##STR1## wherein Z.sub.1 to Z.sub.6 represent independently a residue derived from a polyhydric alcohol or a polyepoxide, K.sub.1 represents independently a radical of the formula ##STR2## K.sub.2 represents a radical of the formula ##STR3## R.sub.1 presents independently a radical of the formula ##STR4## wherein R.sub.3 is independently H-- or CH.sub.3 --, and R.sub.2 represents independently a radical of the formula CH.sub.2 .dbd.CHCOO--, or CH.sub.2 .dbd.C(CH.sub.3)COO--.
摘要:
An ink container, as well as a method of making the same, which has ink absorbing material for retaining ink, a casing for holding the ink absorbing material, an ink supply port through which ink is withdrawn from the absorbing material, and an air vent. The air vent and ink supply port are each provided adjacent to different longitudinal halves of the ink absorbing material, and the casing is initially filled with an amount of ink which is larger than the quantity of ink which can be retained by the ink absorbing material. Then, ink adjacent to the air vent is removed to such an extent that the casing contains the quantity of the ink which the ink absorbing material can retain. Thus, ink is retained at a higher density adjacent to the ink supply port than adjacent to the air vent.
摘要:
A replaceable ink tank, removably connectable to an ink jet head body, comprises a container providing a reservoir for liquid ink to be supplied to a print head on the ink jet head body and having opposing side walls configured for guiding the side walls of the ink jet head body as the container and ink jet head body are being connected. The container includes an ink supply port positioned relative to the side walls for accepting an ink communication pipe of the ink jet head body. An engaging member on each of the container side walls engages a respective coupling member on the ink jet head body for connecting the container with the ink jet head body and holding the ink tank and the ink jet head body together with an absorbing member in the container compressed by the ink communication pipe to enable delivery of ink in said absorbing member to the ink communication pipe. Communication pipe with an ink-introducing port held in pressure abutment with the absorbing member to compress the absorbing member when the ink-jet head body is coupled to the ink storage portion. This assures a good flow of ink to the ink-jet head body.
摘要:
An ink jet head includes a base member, a first member having recesses and coupled with the base member to form ink passages using the recesses and a second member integral with the first member and extending at an angle from an end of the first member, the second member having ink ejection outlets communicating with the ink passages.
摘要:
An ink-jet cartridge includes an ink-jet head body and an ink storage portion which include coupling members, respectively. The ink storage portion includes an absorbing member, while the ink-jet head body includes an ink communication pipe with an ink-introducing port held in pressure abutment with the absorbing member to compress the absorbing member when the ink-jet head body is coupled to the ink storage portion. This assures a good flow of ink to the ink-jet head body.