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公开(公告)号：JPH10151747A
公开(公告)日：1998-06-09
申请号：JP31351696
申请日：1996-11-25
Applicant: CANON KK
Inventor： KAWAI JUN
Abstract: PROBLEM TO BE SOLVED: To make an energy generation means correspond with an ink channel easily through a simple facility without requiring high accuracy alignment. SOLUTION: A plurality of electrothermal converters 102 are arranged at a constant pitch on a multilayer circuit board 101. A plurality of channel walls 107 are formed on a top plate 105 and ink channels 107a are arranged at a constant pitch when the multilayer circuit board 101 is bonded to the top plate 105. The ink channels 107a and the electrothermal converters 102 are arranged to satisfy the relationships PN=n×PH (n is an integer larger than 1) and 0
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公开(公告)号：JPH09187940A
公开(公告)日：1997-07-22
申请号：JP108396
申请日：1996-01-09
Applicant: CANON KK
Inventor： KAWAI JUN , KAMIYAMA YUJI , SATO YOHEI , OSADA TORACHIKA , IKETANI MASARU , MASUDA KAZUAKI
Abstract: PROBLEM TO BE SOLVED: To allow an ink-jet recorder to surely distinguish characteristics of ink-jet recording heads with a simple construction. SOLUTION: A supporting member 11 made of resin has heater board holding protrusions 12 to hold a heater board 15 from both sides and relay wiring substrate holding protrusions 13 to hold a relay wiring substrate 19 from both sides and those lugs 12 and 13 are molded as integral parts of the supporting member 11. Two or more electricity-heat converters to generate heat energy for spraying ink are provided on the heater board 15. A top panel 16 is fixed on the heater board 15 so that ink flow paths and ink spouting nozzles are formed corresponding to the electricity-heat converters. One of the relay wiring substrate holding protrusions 13 is divided into two or more segments and three of them serve as distinguishing protrusions 14a-14c. Specified ones among the distinguishing protrusions 14a-14c are cut off corresponding to the characteristic of a recording head. Therefore, the characteristic of the recording head is distinguished by detecting the presence and absence of the protrusions 14a-14c.
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公开(公告)号：JPH08281960A
公开(公告)日：1996-10-29
申请号：JP11232995
申请日：1995-04-13
Applicant: CANON KK
Inventor： KAWAI JUN , KAMIYAMA YUJI , ARASHIMA TERUO , KASAMOTO MASAMI , MASUDA KAZUAKI
Abstract: PURPOSE: To provide a normal discharge state without crosstalk by providing a part for preventing the diffusion of a load to be applied to bring two members into close contact to be connected at the part except an ink channel. CONSTITUTION: Non-connecting parts with a first member or ink liquid passage walls having weak contact force are provided at both end faces. Thus, the dispersion of the load applied to bring the first member into close contact with a second member to be connected is prevented, a suitable load can be hence applied to a discharge nozzle, and the load per unit area is not raised more than required. Therefore, the warpage of a top plate generated at the time of molding is corrected by the load of the necessary minimum limit to obtain the optimum contact state of the first member with the second member, and printing of high quality level can be performed in a normal discharge state without crosstalk. More particularly, at the connecting surface of the top plate 300 of a discharge port forming member, a trapezoidal groove is connected to a heater board 100 to form a nozzle 11.
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公开(公告)号：JPH07112530A
公开(公告)日：1995-05-02
申请号：JP26120693
申请日：1993-10-19
Applicant: CANON KK
Inventor： ARASHIMA TERUO , KAWAI JUN
IPC: B41J2/175
Abstract: PURPOSE:To always and stably discharge ink by providing an opening part for communicating a common liquid chamber of ink with the atmospheric air of the outside through a filter producing capillary force larger than the negative pressure of an ink storage part to a recording head. CONSTITUTION:A flow path 42 of ink, a common liquid chamber 33 and a discharge port 30 of ink are mutually communicated and formed in a top board 34 provided on a heater board 32 constituted of an Si base plate. Aside from both an opening part 33a for supplying ink from an ink tank and an opening part 33b communicated with the flow path 42 of ink through a filter, an opening part 33c is formed which is communicated with the outside atmosphere being the outside of the top board 34 from the upper part of the common liquid chamber. A vibration absorption filter 170 is welded in the opening part 33c being the contact point of the common liquid chamber 33 and a passage 171a. Many holes are formed in a measure shape in the filter 70. The measure is so set up that the capillary force of ink is made stronger than the pressure in the ink tank. Thereby vibration of ink is reduced in a time for discharging ink.
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公开(公告)号：JPH0789073A
公开(公告)日：1995-04-04
申请号：JP16979194
申请日：1994-07-21
Applicant: CANON KK
Inventor： KASAMOTO MASAMI , SUGITANI HIROSHI , ORIGASA TAKESHI , MIYAGAWA MASASHI , ARASHIMA TERUO , IZUMIDA MASAAKI , KAWAI JUN
Abstract: PURPOSE:To provide an ink jet head having excellent printing quality level by preventing crosstalk between adjacent channels due to no escape of a pressure wave generated by an energy generator to an adjacent channel. CONSTITUTION:The ink jet head comprises a board 103 having a plurality of energy generators for generating energy to be used for discharging ink, and a wall member 105 connected to the board 103 to integrally have a plurality of channel walls 1109 to form channels for operating energy generated from the generators at ink to be discharged. A recess 1117 having a bottom disposed at a lower part from a heat operating surface for transferring heat to the ink is provided between the generators of the board 103 of the head in which the board 103 is connected to the member 105 to form the channel, and the wall 1109 is brought into contact with the board 103 at its bottom.
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Patent Agency Ranking
公开(公告)号：JPH06126964A
公开(公告)日：1994-05-10
申请号：JP27904792
申请日：1992-10-16
Applicant: CANON KK
Inventor： KASAMOTO MASAMI , ARASHIMA TERUO , KAWAI JUN , ISHINAGA HIROYUKI , KAMIYAMA YUJI , MASUDA KAZUAKI , SUGITANI HIROSHI , KASHIMA YASUROH , ORIKASA TSUYOSHI , KIMURA MAKIKO , KARITA SEIICHIRO
Abstract: PURPOSE:To carry out good printing with little effect of meniscus vibration by retaining the stabilized state of meniscus. CONSTITUTION:A plurality of jet openings 101 are communicated with a common liquid chamber 106 through a passage 108 divided by passage walls 109, 109'. Electric thermal converters 102 are provided in respective ink passages 108. Jet openings of an ink jet head are divided into a plurality of blocks, and each of the blocks consists of eight jet openings 101 adjoining respectively, and the respective blocks are driven independently. Out of all the passage walls 109, l09', passage walls 109' forming the boundaries of blocks are provided with protruded sections formed longer than other passage walls 109, and the protruded sections are formed protrudingly on the side of a common liquid chamber 106. The vibration of ink generated when the preceding block is driven is disturbed by the passage wall 109' forming the boundary of block, and the vibration is hardly transmitted to the following block.
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97.发明专利
公开(公告)号：JPH03110172A
公开(公告)日：1991-05-10
申请号：JP24776689
申请日：1989-09-22
Applicant: CANON KK
Inventor： TANAKA SHIGEAKI , KUWABARA NOBUYUKI , GOTO AKIRA , WATANABE TAKASHI , MAEOKA KUNIHIKO , IZUMIDA MASAAKI , SATO KOICHI , FUKUDA TSUGUHIRO , SUGITANI HIROSHI , HATTORI YOSHIFUMI , IKEDA MASAMI , SAITO ASAO , MASUDA KAZUAKI , SAITO AKIO , ORIGASA TAKESHI , OBA TAKASHI , NAKAGOME HIROSHI , ARASHIMA TERUO , KAWAI JUN , ABE TSUTOMU , KASHINO TOSHIO , KIMURA MAKIKO , SAIKAWA HIDEO , KARITA SEIICHIRO
Abstract: PURPOSE:To make bubbles release from a discharge port easily by a method wherein an ink guide surface of which angle with the extension line of a liquid path stays in a specific range is equipped in the direction from an ink receiving part to a liquid path, toward a liquid chamber. CONSTITUTION:Bubbles are removed from a liquid chamber which has a tilt to the extension line of a liquid path by pumping recovery. The tilt angle is preferably 5 deg. or more and 40 deg. or less, end 35 deg. or less is preferable in the actual use. For example, a plurality of recessed parts to form an ink liquid path 140 exist on a top plate 7 by bonding the top plate 7 to a base 8 on which a plurality of discharge energy generating elements 22 are formed. Also, on a wall 12 and inner wall surfaces 13, 14 at the right and left of the wall 12 in a common liquid chamber 15 from an ink feeding port to the recessed part for a liquid path, a tilt is provided, and the tilt angle is 22 deg.. This tilt is an angle by which bubbles of 50-400mum, which enter the common liquid chamber, are easily released. By this angle, the bubbles which have entered the liquid chamber are smoothly discharged from a discharge port along the walls, and easily discharged by pumping recovery.
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公开(公告)号：JPH03101965A
公开(公告)日：1991-04-26
申请号：JP24105589
申请日：1989-09-18
Applicant: CANON KK
Inventor： KAWAI JUN , MAEOKA KUNIHIKO , MASUDA KAZUAKI , ABE TSUTOMU , OBA TAKASHI , NAKAGOME HIROSHI , ARASHIMA TERUO , SUGITANI HIROSHI , HATTORI YOSHIFUMI , IKEDA MASAMI , SAITO ASAO , SAITO AKIO , ORIGASA TAKESHI
Abstract: PURPOSE:To facilitate wiping and capping by a method wherein a substrate is bonded with a top member on which recessed parts are provided for forming ink paths with the recessed part inside, and delivery ports are formed on a planar member which is formed integrally with the top member so as to extend both upwards and downwards from the end part of the top member. CONSTITUTION:A receiving port 1500 for supplying an ink to ink paths is formed by bonding a grooved top plate 1300 with a heater board 100. An orifice plate 400 extending both upwards and downwards from the end part of the top plate is formed integrally with the grooved top plate 1300. The body of the orifice plate 400 is determined to be 200mum in thickness to obtain a strength. Only the part of the orifices 41 is determined to be 10-50mum in thickness for the ease of forming orifices using a layer or the like. The orifice plate body is formed so that the thickness gradually becomes large from the part of the orifices 41 to the both end parts. Moreover, the both ends of the orifice train are determined to be 200mum as thick as the orifice plate body by taking a strength and an airtightness in capping into consideration.
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公开(公告)号：JPH03101958A
公开(公告)日：1991-04-26
申请号：JP24105689
申请日：1989-09-18
Applicant: CANON KK
Inventor： MAEOKA KUNIHIKO , SAITO AKIO , MASUDA KAZUAKI , OBA TAKASHI , KAWAI JUN , ABE TSUTOMU , NAKAGOME HIROSHI , ARASHIMA TERUO , SUGITANI HIROSHI , HATTORI YOSHIFUMI , IKEDA MASAMI , SAITO ASAO , ORIGASA TAKESHI
Abstract: PURPOSE:To prevent that an adhesive may flow into an ink path to cause clogging or change in shape of the ink path by a method wherein the ink paths are formed by bonding a substrate with a top member with the recessed parts of the top member inside, and an adhesively tacking part is provided in an area other than the ink paths. CONSTITUTION:A heater board(substrate) 100 and a top plate (top member with recessed parts) 1300 are positioned to each other by abutting the end face of the heater board 100 against an orifice plate 400. An adhesive 1300c is applied to two adhesively tacking parts 1300a provided on the outer end part of the top plate 1300, and the both are bonded and tacked with each other so that liquid paths 1300d are corresponding to heat generation parts 100a of electrothermal conversion body. Because the tacking parts 1300a are provided in an area where the top plate 1300 is bonded to the heater board 100 but out of an area where the ink paths are formed, the adhesive 1300c can be prevented from flowing into the liquid paths 1300d as ink paths and a common liquid chamber 1300e.
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100.发明专利
公开(公告)号：JPH03101955A
公开(公告)日：1991-04-26
申请号：JP24102989
申请日：1989-09-18
Applicant: CANON KK
Inventor： NAKAGOME HIROSHI , ARASHIMA TERUO , MAEOKA KUNIHIKO , OBA TAKASHI , KAWAI JUN , ABE TSUTOMU , SUGITANI HIROSHI , HATTORI YOSHIFUMI , IKEDA MASAMI , SAITO ASAO , MASUDA KAZUAKI , SAITO AKIO , ORIGASA TAKESHI
Abstract: PURPOSE:To press an area of an upper surface of a grooved top plate corresponding to an ink path forming area in the vicinity of ink delivery ports by application of an approximately uniform pressing force by a method wherein a first substrate is depressed against a second substrate by generating a linear pressure by an end part of a plate spring member. CONSTITUTION:A planar spring member 4 formed into substantially a U shape is provided with a plane part 4c disposed in nearly parallel to the upper surface of a grooved top plate 2 and side face parts 4d disposed along the bonding surface of a substrate 1 with the grooved top plate 2. An arm part 4e for applying a pressing force to the planar spring member 4 by engaging with a support board 3 is provided on the side face part 4d. Moreover, a linear pressure generation part 6 extending from the plane part 4c and being bent toward the upper surface of the grooved top plate 2 is provided. The linear pressure generation part 6 linearly presses and bonds the substrate 1 and the grooved top plate 2 to each other by the linear pressure, thus resulting in a concentrated pressing stress and a uniform pressing force. In this manner, the linear pressure generation part 6 uniformly presses an ink path forming area or the vicinity of delivery ports over almost the full width thereof, therefore positively preventing a gap which has been generated between adjacent ink paths 7.
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