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    21.
    发明专利
    未知

    公开(公告)号：DE69416229T2

    公开(公告)日：1999-07-08

    申请号：DE69416229

    申请日：1994-09-30

    Applicant: CANON KK

    Inventor： TERAJIMA HISAO ,  UENO YASUHIDE ,  TOYAMA TAKESHI ,  WATANABE TOSHIYUKI ,  IMAI TAKASHI ,  WATANEBE NAOYA

    IPC: G06K15/00 ,  H04N1/00 ,  H04N1/32

    Abstract: An image recording apparatus includes a FAX unit (1) and a printer unit (2). The printer unit (2) has an ink-jet printing head (205), and records an image in accordance with image data received by the FAX unit (1). In this apparatus, when the power supply is turned on, the printer unit (2) performs a hard power-ON initialization process to initialize a watch-dog timer, registers, the work area of a RAM, and the like, and also initializes the RAM to erase data left in buffers. Thereafter, the printer unit transfers to a standby state. When a print request or a printer setting request is generated in the standby state, a soft power supply initialization process is executed to perform checking of the RAM, initialization of the work area, and initialization of carriage control and paper feed control, and the like. In the standby state, LEDs and the like of the printer unit are kept OFF. An operation error of the printer unit caused by remaining data can be prevented, and reliability of the apparatus can be improved. In addition, unnecessary power consumption can be prevented.

    29.
    发明专利
    未知

    公开(公告)号：DE69132264D1

    公开(公告)日：2000-08-03

    申请号：DE69132264

    申请日：1991-03-22

    Applicant: CANON KK

    Inventor： ONO TAKASHI ,  UENO YASUHIDE

    IPC: H04N1/21 ,  H04L1/16 ,  H04N1/32

    Abstract: The present invention relates to a data communication apparatus having an error correction communication mode in half duplex operation and method. The data communication apparatus has a memory for storing a received data, and means which detects an overflow in the memory and presence of an error in the received data and requests re-sending in accordance with this detection result.

    30.
    发明专利
    未知

    公开(公告)号：ES2126069T3

    公开(公告)日：1999-03-16

    申请号：ES94307204

    申请日：1994-09-30

    Applicant: CANON KK

    Inventor： TERAJIMA HISAO ,  UENO YASUHIDE ,  TOYAMA TAKESHI ,  WATANABE TOSHIYUKI ,  IMAI TAKASHI ,  WATANEBE NAOYA

    IPC: G06K15/00 ,  H04N1/00 ,  H04N1/32

    Abstract: An image recording apparatus includes a FAX unit (1) and a printer unit (2). The printer unit (2) has an ink-jet printing head (205), and records an image in accordance with image data received by the FAX unit (1). In this apparatus, when the power supply is turned on, the printer unit (2) performs a hard power-ON initialization process to initialize a watch-dog timer, registers, the work area of a RAM, and the like, and also initializes the RAM to erase data left in buffers. Thereafter, the printer unit transfers to a standby state. When a print request or a printer setting request is generated in the standby state, a soft power supply initialization process is executed to perform checking of the RAM, initialization of the work area, and initialization of carriage control and paper feed control, and the like. In the standby state, LEDs and the like of the printer unit are kept OFF. An operation error of the printer unit caused by remaining data can be prevented, and reliability of the apparatus can be improved. In addition, unnecessary power consumption can be prevented.

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