1.
    发明专利
    未知

    公开(公告)号:DE69533299D1

    公开(公告)日:2004-09-02

    申请号:DE69533299

    申请日:1995-05-30

    Applicant: CANON KK

    Inventor: SATO YASUSHI

    Abstract: The system has a set of interfaces that receives an input data from an external apparatus such as host computer. An operation panel (102) is provided with switches for operations and the input data are analyzed by a set of control programs. A central processing unit selects the program corresponding to the interface to be used for data input by referring to the combination information memorized in a memory unit based on discriminating interface. An independent claim is also included for a printing control method.

    3.
    发明专利
    未知

    公开(公告)号:DE68925344T2

    公开(公告)日:1996-06-27

    申请号:DE68925344

    申请日:1989-10-31

    Applicant: CANON KK

    Abstract: An image forming apparatus includes a movable image bearing member; an image forming device for forming an image on the image bearing member; a charging member disposed opposed to the image bearing member; and bias application device for applying a bias voltage to the charging member, wherein the bias applying device effects a constant voltage control to the charging member when an image area of the image bearing member is in a charging region of the charging member, and effects a constant current control during at least a part of a period in which an area of the image bearing member other than the image area is in the charging region, and wherein a level of a constant voltage of the constant voltage control is determined during the constant current control.

    4.
    发明专利
    未知

    公开(公告)号:DE69020770T2

    公开(公告)日:1995-12-07

    申请号:DE69020770

    申请日:1990-04-02

    Applicant: CANON KK

    Abstract: An image forming apparatus includes a movable image bearing member (1); an image forming device (5,6) for forming a toner image on the image bearing member; image transfer device (2) for transferring the toner image from the image bearing member to a transfer material (P) at an image transfer station, wherein the transfer device includes a charging member (1) press-contacted or faced to the image bearing member and a device (4) for applying a voltage to the charging member, wherein the voltage applying device applies a voltage to the charging member so that the charging member is constant-voltage-controlled when an image region of the image bearing member is in the transfer station, and the charging member is constant-current-controlled during at least a part of a period when it is not in the transfer station, wherein a voltage V2 applied during the constant voltage control is a voltage V1 appearing in the transfer device during the constant current control multiplied by a coefficient R, in which R is larger than 1.

    5.
    发明专利
    未知

    公开(公告)号:ES2074097T3

    公开(公告)日:1995-09-01

    申请号:ES90106276

    申请日:1990-04-02

    Applicant: CANON KK

    Abstract: An image forming apparatus includes a movable image bearing member (1); an image forming device (5,6) for forming a toner image on the image bearing member; image transfer device (2) for transferring the toner image from the image bearing member to a transfer material (P) at an image transfer station, wherein the transfer device includes a charging member (1) press-contacted or faced to the image bearing member and a device (4) for applying a voltage to the charging member, wherein the voltage applying device applies a voltage to the charging member so that the charging member is constant-voltage-controlled when an image region of the image bearing member is in the transfer station, and the charging member is constant-current-controlled during at least a part of a period when it is not in the transfer station, wherein a voltage V2 applied during the constant voltage control is a voltage V1 appearing in the transfer device during the constant current control multiplied by a coefficient R, in which R is larger than 1.

    LASER BEAM SCANNING
    9.
    发明专利

    公开(公告)号:GB2142153B

    公开(公告)日:1987-10-14

    申请号:GB8410067

    申请日:1984-04-18

    Applicant: CANON KK

    Inventor: SATO YASUSHI

    Abstract: A laser beam recording apparatus having a parallel-plane plate, such as a dust proof glass plate or a light controlling filter, which is disposed across the optical path of the laser beam. The beam transmitting surfaces of the parallel-plane plate are so inclined that the angle of incidence of the laser beam thereon is not zero throughout the scanning movement of the laser beam.

    IMAGE FIXING
    10.
    发明专利

    公开(公告)号:GB2156277A

    公开(公告)日:1985-10-09

    申请号:GB8505251

    申请日:1985-02-28

    Applicant: CANON KK

    Abstract: An image forming or recording apparatus provided with an image fixing device of a heating type, which may cause curl of the recording material when the recording material is discharged from the fixing means. The causes of the curling are investigated, and a device is provided which can effectively correct or remove the curl of the recording material with a very simple structure. The device includes a passage for applying water vapor to the recording material, immediately after it is discharged from the fixing device. As a supply of the vapor, the moisture contained in the recording material is utilized.

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