Abstract: An object is to provide a printing apparatus or the like that improves printing accuracy when a carriage moves back and forth for printing. A block 51 on a block surface plate is mounted on the block surface plate at a predetermined location. On the other hand, a substrate 54 on a print surface plate is mounted at a location corresponding to the location of the block 51, that is, a location where a picture transfer is desirably received from a blanket cylinder 13. In the present invention, the arrangement of sliders 52 and 40 for the block carriage 50 and a printing carriage 7 to reciprocate along two rails 30 in the block carriage 50 and that in the printing carriage 7 are the same. With such an arrangement, at the same location immediately below the blanket cylinder 13 on the same track 30, even when the straightness of the rail 30 is not sufficient, the block 51 and the glass substrate 54 take the same position at the location, and thus print misalignment can be prevented.

Abstract: In a vessel (2) to which waste liquid (11) which contains ink pigment, water and cleaning liquid used in a printer is supplied, a metal electrode plate (30a, 30b) which allows the waste liquid (11) to flow therethrough is disposed to partition the inside of the vessel (2) into a first region (a) and a second region (b). A high voltage from a high-voltage power supply (7) is applied to the metal electrode plate (30a, 30b) while a grounding electrode (20) is connected to the first chamber (a) to generate an electrostatic field between the metal electrode plate (30a, 30b) and the grounding electrode (20) so that the water and the ink pigment are electrostatically agglomerated from the waste liquid (11) making use of electrophoresis of the ink pigment by the electrostatic field thereby to separate the waste liquid in the first region (a) into the cleaning liquid, water and ink pigment.

Abstract: An ink jet head includes a base with front and rear ends having a plurality of channel grooves separated by channel walls each including a piezoelectric extending to the rear end, a cover that is placed on the base to be in contact therewith and opposite to the face of the base that has the channel grooves, electrodes placed on at least part of the inner surface of each one of the channel grooves, a conductive resin electrically connected with the electrode plugging up each of the channel grooves at the rear end, and projections as a pressing means for pressing the top of the conductive resin at the rear end of each channel groove.

Abstract: An ink-jet head includes a base member provided with a plurality of channel grooves separated from each other by channel walls and connecting front and rear ends together, a cover member arranged in contact with the base member and opposed to a surface provided with the plurality of channel grooves of the base member, an electrode arranged as a drive electrode on at least a part of inner surfaces of the channel grooves, and conductive resin arranged at the rear end to fill inner spaces of the channel grooves and electrically connected to the drive electrode. The rear end of the channel groove is shallower than the front end of the channel groove.

Abstract: In a vessel (2) to which waste liquid (11) which contains ink pigment, water and cleaning liquid used in a printer is supplied, a metal electrode plate (30a, 30b) which allows the waste liquid (11) to flow therethrough is disposed to partition the inside of the vessel (2) into a first region (a) and a second region (b). A high voltage from a high-voltage power supply (7) is applied to the metal electrode plate (30a, 30b) while a grounding electrode (20) is connected to the first chamber (a) to generate an electrostatic field between the metal electrode plate (30a, 30b) and the grounding electrode (20) so that the water and the ink pigment are electrostatically agglomerated from the waste liquid (11) making use of electrophoresis of the ink pigment by the electrostatic field thereby to separate the waste liquid in the first region (a) into the cleaning liquid, water and ink pigment.

Abstract: An ink-jet head includes a base member provided with a plurality of channel grooves separated from each other by channel walls and connecting front and rear ends together, a cover member arranged in contact with the base member and opposed to a surface provided with the plurality of channel grooves of the base member, an electrode arranged as a drive electrode on at least a part of inner surfaces of the channel grooves, and conductive resin arranged at the rear end to fill inner spaces of the channel grooves and electrically connected to the drive electrode. The rear end of the channel groove is shallower than the front end of the channel groove.

Abstract: An ink jet head includes a base with front and rear ends having a plurality of channel grooves separated by channel walls each including a piezoelectric extending to the rear end, a cover that is placed on the base to be in contact therewith and opposite to the face of the base that has the channel grooves, electrodes placed on at least part of the inner surface of each one of the channel grooves, a conductive resin electrically connected with the electrode plugging up each of the channel grooves at the rear end, and projections as a pressing means for pressing the top of the conductive resin at the rear end of each channel groove.

Abstract: In a pattern forming apparatus that forms a pattern by jetting out an ink from nozzle opening sections of nozzles, the nozzles are formed by bonding a top plate to a surface of a substrate on which a concave section is formed, and the substrate is combined with the top plate by melting a combining layer formed on at least one of the substrate and the top plate. With this, the shape accuracy of the nozzle opening sections of the pattern forming apparatus is ensured.

Abstract: In a droplet spray apparatus spraying out ink from an ink path by altering the volume of an ink channel formed in a trench that is covered with a cover plate and that has a conductive member provided at one end formed at a piezoelectric member, an ink supply opening to supply ink is provided at the end side where the conductive member is provided. Accordingly, an ink jet head that can be made compact, fabricated easily, and superior in productivity is obtained.

Abstract: A method for making a printing plate including a step of forming a hydrophobic image area on at least a part of a hydrophilic surface of a plate. The plate surface contains a photocatalyst and the image area is formed by using an organic compound which is decomposed and removed by the irradiation of light having a higher energy than the band gap energy of the photocatalyst.

Abstract: A method for making a printing plate including a step of forming a hydrophobic image area on at least a part of a hydrophilic surface of a plate. The plate surface contains a photocatalyst and the image area is formed by using an organic compound which is decomposed and removed by the irradiation of light having a higher energy than the band gap energy of the photocatalyst.

Abstract: A method for making a reusable printing plate in which a hydrophobic image area is formed on a hydrophilic plate surface containing a photocatalyst. The method includes the steps of carrying out a hydrophobic agent application process in which a solution containing an organic compound having a property of reacting with the plate surface by a heating process and a property of being decomposed by the action of the photocatalyst when irradiated by light having a higher energy than a band gap energy of the photocatalyst is applied on the plate surface; carrying out an image area formation process in which a part of the plate surface is subjected to a heating process to form a hydrophobic image area; and carrying out a non-image area formation process in which the organic compound applied to an area other than the hydrophobic image area on the plate surface is removed.

Abstract: A method for making a printing plate including a step of forming a hydrophobic image area on at least a part of a hydrophilic surface of a plate. The plate surface contains a photocatalyst and the image area is formed by using an organic compound which is decomposed and removed by the irradiation of light having a higher energy than the band gap energy of the photocatalyst.

Abstract: An ink-jet head includes an electrode formed to continue from an inner surface in an ink chamber to a back end surface of a diaphragm through an inclined surface of the diaphragm. The inclined surface forms an angle greater than 90° with the inner surface in the ink chamber and forms an angle greater than 90° with the back end surface of the diaphragm. The electrode thus has a sufficient thickness on the corner portion formed by the inner surface in the ink chamber and the back end surface of the diaphragm. Accordingly, even if any component touches or hits the corner portion formed by the inner surface and the back end surface, in an assembly process of the ink-jet head, the electrode is prevented from being cut off and thus from being broken. In this way, the electrode can surely be connected electrically to a driving circuit.

Abstract: An ink jet head which has been improved to enable reliable connection of an electrode to an external portion without increasing manufacturing cost is provided. The ink jet head includes a base member, a cover member, a nozzle plate, and a plurality of electrode connecting portions. The electrode connecting portions are electrically isolated by second grooves formed in the surface of the base member. The surface of the electrode connecting portions are substantially flush with the upper surfaces of the walls.

Abstract: An ink-jet head includes an electrode formed to continue from an inner surface in an ink chamber to a back end surface of a diaphragm through an inclined surface of the diaphragm. The inclined surface forms an angle greater than 90° with the inner surface in the ink chamber and forms an angle greater than 90° with the back end surface of the diaphragm. The electrode thus has a sufficient thickness on the corner portion formed by the inner surface in the ink chamber and the back end surface of the diaphragm. Accordingly, even if any component touches or hits the corner portion formed by the inner surface and the back end surface, in an assembly process of the ink-jet head, the electrode is prevented from being cut off and thus from being broken. In this way, the electrode can surely be connected electrically to a driving circuit.

Abstract: In a droplet spray apparatus spraying out ink from an ink path by altering the volume of an ink channel formed in a trench that is covered with a cover plate and that has a conductive member provided at one end formed at a piezoelectric member, an ink supply opening to supply ink is provided at the end side where the conductive member is provided. Accordingly, an ink jet head that can be made compact, fabricated easily, and superior in productivity is obtained.

Abstract: A method for making a reusable printing plate in which a hydrophobic image area is formed on a hydrophilic plate surface containing a photocatalyst. The method includes the steps of carrying out a hydrophobic agent application process in which a solution containing an organic compound having a property of reacting with the plate surface by a heating process and a property of being decomposed by the action of the photocatalyst when irradiated by light having a higher energy than a band gap energy of the photocatalyst is applied on the plate surface; carrying out an image area formation process in which a part of the plate surface is subjected to a heating process to form a hydrophobic image area; and carrying out a non-image area formation process in which the organic compound applied to an area other than the hydrophobic image area on the plate surface is removed.

Abstract: A method for making a printing plate including a step of forming a hydrophobic image area on at least a part of a hydrophilic surface of a plate. The plate surface contains a photocatalyst and the image area is formed by using an organic compound which is decomposed and removed by the irradiation of light having a higher energy than the band gap energy of the photocatalyst.

Abstract: An ink jet head which has been improved to enable reliable connection of an electrode to an external portion without increasing manufacturing cost is provided. The ink jet head includes a base member, a cover member, a nozzle plate, and a plurality of electrode connecting portions. The electrode connecting portions are electrically isolated by second grooves formed in the surface of the base member. The surface of the electrode connecting portions are substantially flush with the upper surfaces of the walls.