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公开(公告)号：DE69933152D1
公开(公告)日：2006-10-26
申请号：DE69933152
申请日：1999-01-18
Applicant: CANON KK
Inventor： SHIHOH MAKOTO , SATO OSAMU , IKKATAI MASATOSHI , MIYAZAKI KYOTA , ARAKI YOSHIMASA
IPC: B41J2/175
Abstract: Disclosed is an ink tank (1) for use in an ink jet recording apparatus comprising a recording head, an ink supply needle, a moving unit for moving the ink supply needle to a predetermined position, and a movement preventing unit which prevents movement of the ink supply needle caused by the moving unit, the recording apparatus being able to detachably mount the ink tank (1). The ink tank (1) comprises an ink containing portion (11) for containing ink, a projected portion (3) having an ink communicating portion (13) for communicating the ink containing portion (11) with the ink supply needle, a lock release portion (4) provided at a front end of the ink tank (1) in a direction of insertion thereof for releasing the movement preventing unit, a grip portion (7) provided at a rear end of the ink tank (1) in the direction of insertion thereof, and a vertical surface portion (6) extending upward from the grip portion (7) perpendicularly to a bottom surface of the ink tank (1) in an opposed relation to the projected portion (3). The vertical surface portion (6) has an upper end at a higher level from the bottom surface than an end face of the ink communicating portion (13) of the projected portion (3), and a lower end at a lower level from the bottom surface than a lower end of a lateral surface of the projected portion (3).
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公开(公告)号：DE69931737D1
公开(公告)日：2006-07-20
申请号：DE69931737
申请日：1999-12-20
Applicant: CANON KK
Inventor： MIYAZAKI KYOTA , IKEDA MASAMI , SATO OSAMU
IPC: B41J2/175
Abstract: An ink tank (1) comprises a housing detachably mountable on a liquid jet recording apparatus, which is capable of retaining liquid directly in the interior thereof, a supply portion (13) for supplying liquid retained in the housing to the recording apparatus and a communication portion (12) with the air outside for communicating the interior of the housing with the air outside. For this ink tank, the supply portion (13) and the communication portion (12) with the air outside are integrally formed, and at the same time, a plate member is provided to make the interior of the housing a closed space by joining the plate member to the housing, and then, erroneous installation prevention portions are arranged for the plate member to prevent the installation on the position other than specifically designated for the liquid jet recording apparatus. With the structure thus arranged, the ink tank (1) makes it possible to easily enhance the dimensional precision of the coupling portion with the recording apparatus, and the erroneous installation prevention portions as well. Thus, without depending on the precision of an ink tank as a whole, it is possible to enhance the reliability of the installation on or coupling with the recording apparatus.
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公开(公告)号：DE69532658T2
公开(公告)日：2005-02-10
申请号：DE69532658
申请日：1995-05-22
Applicant: CANON KK
Inventor： SHIMOMURA AKIHIKO , KISHIDA HAJIME , SHIOYA MAKOTO , SATO OSAMU , SHIBA SHOJI , TANEYA YOICHI , SUZUKI MARIKO
Abstract: An ink-filling device (11) for filling ink to an ink tank (1) through an injection opening of an ink tank for storing ink to be supplied to a recording head (2), the ink filling device comprising an ink-holding part (5) for holding ink to be refilled, pressing mechanism for pressing the ink-holding part, a hollow tube (6) extending from the ink-holding part, and a fitting member (7) provided along the hollow tube for fitting to the injection opening, the fitting member having an air hole (7a) to communicate the interior of the ink tank with the outside in a fitted state.
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公开(公告)号：DE69532658D1
公开(公告)日：2004-04-08
申请号：DE69532658
申请日：1995-05-22
Applicant: CANON KK
Inventor： SHIMOMURA AKIHIKO , KISHIDA HAJIME , SHIOYA MAKOTO , SATO OSAMU , SHIBA SHOJI , TANEYA YOICHI , SUZUKI MARIKO
Abstract: An ink-filling device (11) for filling ink to an ink tank (1) through an injection opening of an ink tank for storing ink to be supplied to a recording head (2), the ink filling device comprising an ink-holding part (5) for holding ink to be refilled, pressing mechanism for pressing the ink-holding part, a hollow tube (6) extending from the ink-holding part, and a fitting member (7) provided along the hollow tube for fitting to the injection opening, the fitting member having an air hole (7a) to communicate the interior of the ink tank with the outside in a fitted state.
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公开(公告)号：DE69528491T2
公开(公告)日：2003-03-06
申请号：DE69528491
申请日：1995-07-03
Applicant: CANON KK
Inventor： SATO OSAMU
Abstract: The present invention provides a sheet convey apparatus comprising a first convey means for pinching and conveying a sheet, and a second convey means disposed at a downstream side of the first convey means and adapted to pinch and convey the sheet, and wherein, when elongation of the sheet generated between the first and second convey means is t, a convey amount of the first convey means is L1 and a convey amount of the second convey means is L2, a relation of L2 >/= L1 + t is satisfied. The present invention further provides an image forming apparatus using such a sheet convey apparatus.
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Patent Agency Ranking
公开(公告)号：DE69624063T2
公开(公告)日：2003-02-13
申请号：DE69624063
申请日：1996-11-07
Applicant: CANON KK
Inventor： SATO OSAMU , HIROSAWA TOSHIAKI , MORITA OSAMU , KAWAMURA SHOGO
IPC: B41J2/175
Abstract: An ink refilling apparatus includes an ink absorbing member at a connecting portion relative to an ink recording head; an ink container holding portion to which an ink container for the ink recording head provided with a porous ink retaining member capable of producing a negative pressure therein, is mountable; an ink discharging means for accommodating the ink to be refilled into the ink container and supplying the ink to the ink absorbing member of the ink container; wherein after the ink of the ink absorbing member and the ink retained by the ink discharging means are contacted to each other, the ink is refilled using a negative pressure produced by consumption of the ink from the ink container; the improvement residing in that ink absorbing member having substantially the same property as the ink absorbing member of the ink container is provided at an ink container connection side of the ink discharging means, the ink absorbing members are contacted to each other upon mounting of the ink container, by which a meniscus formed at a contact surface of the ink absorbing member, is broken.
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公开(公告)号：DE69232671D1
公开(公告)日：2002-08-08
申请号：DE69232671
申请日：1992-10-21
Applicant: CANON KK
Inventor： ORIKASA TSUYOSHI , ICHIKAWA FUMIO , MASUDA KAZUAKI , MAEOKA KUNIHIKO , WATANABE TAKASHI , SATO OSAMU , GOTO AKIRA
Abstract: An ink jet recording head is produced by forming in a first substrate (308) a plurality of orifices (317) for ejecting an ink droplet and a reference object for registration; forming in a second substrate (307) ejection energy generating elements (315) for supplying energy for ejecting the ink placed in liquid passages (314) communicating with the orifices (317); and joining the first substrate 308 and the second substrate (307) together on the basis of the reference object for registration.
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公开(公告)号：AU2031602A
公开(公告)日：2002-05-02
申请号：AU2031602
申请日：2002-03-05
Applicant: CANON KK
Inventor： HIROSAWA TOSHIAKI , KAWAMURA SHOGO , SATO OSAMU , MORITA OSAMU
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公开(公告)号：AU745308B2
公开(公告)日：2002-03-21
申请号：AU9699098
申请日：1998-12-08
Applicant: CANON KK
Inventor： SHIMOMURA MASAKO , MASUDA KAZUAKI , SATO OSAMU , NOGUCHI HIROMICHI
Abstract: An adsorbent (101) for ink jet use arranged in a position to be in contact with ink, having the higher capability of adsorption with respect to hydrophobic substance contained in ink than colorant therein. Then, an ink retaining container (100) comprises an ink retaining portion for retaining ink to be supplied to an ink jet head, an ink supply opening which becomes the ink supply portion from the ink retaining portion to the head, an atmospheric communication opening for communicating the ink retaining portion with the air outside. This ink retaining container is provided with the above-mentioned adsorption member arranged in a position to be in contact with ink in it. With the adsorbent and the ink retaining container thus arranged, it is made possible to perform ink jet recording with excellent print characteristics by effectively removing the hydrophobic substance eluted form the ink absorbent in the ink retaining container.
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公开(公告)号：DE69800418T2
公开(公告)日：2001-05-10
申请号：DE69800418
申请日：1998-02-18
Applicant: CANON KK
Inventor： WATANABE ITARU , TAKAGI SHINJI , HIRAMATSU SOICHI , SATO OSAMU , UDAGAWA KENTA
IPC: B41J2/175 , G01F23/292
Abstract: Precision of detecting existence/non-existence of a liquid container and a liquid level in the container is improved even if the detection is performed by a single sensor, or even if the S/N ratio of the detection is low, the detected results can be discriminated from one another. For this, a concave polyhedron is provided in the center of the bottom surface of an optical prism in order to reduce the amount of light reflected on the bottom surface of the optical prism and returned to a photoreceptor. Moreover, a reflection curved surface having a quadratic surface e.g. spherical surface or paraboloid, is provided on the bottom surface of an ink tank, for reflecting light emitted by an optical unit consisting of a light emission device and a photoreceptor. By virtue of this, even in a case where an arrangement angle or position of the optical unit is deviated to some extent, sufficient amount of light for the photoreceptor can be received, making it possible to accurately detect existence/non-existence of ink and/or existence/non-existence of an ink tank.
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