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    32.
    发明专利
    未知

    公开(公告)号：DE69523507T2

    公开(公告)日：2002-05-08

    申请号：DE69523507

    申请日：1995-05-22

    Applicant: CANON KK

    Inventor： SHIMOMURA AKIHIKO ,  KISHIDA HAJIME ,  SHIOYA MAKOTO ,  SATO OSAMU ,  SHIBA SHOJI ,  TANEYA YOICHI ,  SUZUKI MARIKO

    IPC: B29D22/00 ,  B41J2/175 ,  C08J5/00 ,  C23C14/06 ,  C23C14/10

    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.

    33.
    发明专利
    未知

    公开(公告)号：DE69800589T2

    公开(公告)日：2001-08-23

    申请号：DE69800589

    申请日：1998-07-29

    Applicant: CANON KK

    Inventor： SATO OSAMU

    IPC: B41J2/175

    Abstract: A method of supplying liquid into a liquid container, which includes a first chamber, provided with a liquid supply portion for supplying liquid out, to a liquid ejection head and an air vent for fluid communication with ambient air, for accommodating therein a negative pressure producing member; a second chamber forming a substantially sealed space except for a communication part with the first chamber, wherein the liquid supply portion is disposed at a bottom side; and a gas-liquid exchange promoting structure, provided in the first chamber, for introducing the ambient air into the second chamber to permit discharging of the liquid, the method includes a pressure reducing step of reducing a pressure of an entirety of the container, while the liquid container is hermetically sealed; first liquid supplying step of supplying the liquid into the second chamber, and completing the liquid supply before a portion adjacent to the gas-liquid exchange promoting structure of the negative pressure producing member in the first chamber is supplied with the liquid, in a reduced pressure state provided by the pressure reducing step, with the container taking the same orientation as when the liquid supplied to the liquid ejecting head; a second liquid supplying step of supplying the liquid into the first chamber through the liquid supply portion, after the first liquid supplying step into the second chamber; a releasing step of releasing the hermetically sealed state of the first chamber after the second liquid supplying step into the first chamber.

    34.
    发明专利
    未知

    公开(公告)号：AT200251T

    公开(公告)日：2001-04-15

    申请号：AT96112301

    申请日：1992-10-21

    Applicant: CANON KK

    Inventor： ORIKASA TSUYOSHI ,  ICHIKAWA FUMIO ,  MASUDA KAZUAKI ,  MAEOKA KUNIHIKO ,  WATANABE TAKASHI ,  SATO OSAMU ,  GOTO AKIRA

    IPC: B23K26/06 ,  B23K26/08 ,  B23K26/38 ,  B41J2/16

    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.

    35.
    发明专利
    未知

    公开(公告)号：DE69517637T2

    公开(公告)日：2001-02-15

    申请号：DE69517637

    申请日：1995-08-31

    Applicant: CANON KK

    Inventor： SATO OSAMU ,  TAKENOUCHI MASANORI ,  SUGAMA SADAYUKI ,  INOUE HIROYUKI ,  TSUTSUMI TAKAYOSHI ,  KOTAKI YASUO

    IPC: B41J2/175

    Abstract: An ink refilling method for an ink container having a porous material capable of producing negative pressure therein and having an ink absorbing portion in a connecting zone with an ink jet recording head, after at least a part of initially contained ink is consumed through the ink absorbing portion includes breaking ink meniscus at the ink absorbing portion of the ink container; supplying the ink into the ink container by a negative pressure produced in the porous material by consumption of the ink, while maintaining fluid communication between the ink absorbing portion and the ink to be supplied.

    36.
    发明专利
    未知

    公开(公告)号：DE69231318T2

    公开(公告)日：2001-02-01

    申请号：DE69231318

    申请日：1992-01-17

    Applicant: CANON KK

    Inventor： SATO OSAMU ,  UEHARA HARUO ,  HATTORI YOSHIFUMI ,  ASAI NAOHITO ,  SAIKAWA HIDEO ,  ABE TSUTOMU

    IPC: B41J2/14 ,  B41J2/16 ,  B41J2/175

    Abstract: An ink jet recording head unit for performing a recording operation by discharging ink, the ink jet recording head unit including: an ink jet head portion having an ink passage communicated with a discharge port for discharging ink and a substrate (100) having an energy generating element for causing energy for discharging ink to act on ink present in the ink passage and supplied through an ink supply port formed in a connecting portion (623); and an ink supply member (600) having a connecting portion to be connected to the ink jet head portion so as to supply ink to the ink jet head portion via the connecting portion (623), wherein at least the connecting portion (623) or the ink jet head (600) portion and the connecting portion of the ink supply member has a projection portion (1500a) at a position at which it comes in contact with the corresponding connection port so that the connecting portions are respectively connected to the corresponding connecting portions (623) by deforming and bringing the projection portions (1500a) to come in contact with the connecting portions (623).

    37.
    发明专利
    未知

    公开(公告)号：DE69800418D1

    公开(公告)日：2001-01-11

    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.

    38.
    发明专利
    未知

    公开(公告)号：DE69422761T2

    公开(公告)日：2000-06-21

    申请号：DE69422761

    申请日：1994-08-24

    Applicant: CANON KK

    Inventor： SATO OSAMU

    IPC: B41J2/175 ,  G01F23/28

    Abstract: The present invention has as its object to detect the termination of ink reliably and highly accurately in an ink jet recording apparatus. An ink cartridge 2 has an opening 5 for connection to a recording head 1, and is comprised of a negative pressure generating member containing portion 14 containing a negative pressure generating member 13 and having an atmosphere communicating port 10, and an ink containing portion 16 which is adjacent to the negative pressure generating member containing portion 14 and communicates therewith at the bottom 11 of the ink cartridge. Ink detecting means 3 is provided below the ink containing portion 16. When the detecting means 3 detects a reduction in the remain in the ink containing portion 16, ink remains only in the negative pressure generating member containing portion 14 and the remainder can be substantially estimated. For the remaining ink, the amount of use is calculated by the counting of discharge pulses or the like and is compared, whereby the remain of the ink can be detected accurately and easily.

    39.
    发明专利
    未知

    公开(公告)号：DE69422761D1

    公开(公告)日：2000-03-02

    申请号：DE69422761

    申请日：1994-08-24

    Applicant: CANON KK

    Inventor： SATO OSAMU

    IPC: B41J2/175 ,  G01F23/28

    Abstract: The present invention has as its object to detect the termination of ink reliably and highly accurately in an ink jet recording apparatus. An ink cartridge 2 has an opening 5 for connection to a recording head 1, and is comprised of a negative pressure generating member containing portion 14 containing a negative pressure generating member 13 and having an atmosphere communicating port 10, and an ink containing portion 16 which is adjacent to the negative pressure generating member containing portion 14 and communicates therewith at the bottom 11 of the ink cartridge. Ink detecting means 3 is provided below the ink containing portion 16. When the detecting means 3 detects a reduction in the remain in the ink containing portion 16, ink remains only in the negative pressure generating member containing portion 14 and the remainder can be substantially estimated. For the remaining ink, the amount of use is calculated by the counting of discharge pulses or the like and is compared, whereby the remain of the ink can be detected accurately and easily.

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