中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

5 records (took 0.02 seconds)

    3.
    发明专利
    未知

    公开(公告)号：DE69412562D1

    公开(公告)日：1998-09-24

    申请号：DE69412562

    申请日：1994-10-05

    Applicant: SHARP KK

    Inventor： NAKAMURA TADASHI ,  SAKITA HIROFUMI ,  AKAZAWA YOSHIAKI ,  OKAMOTO KANSHIRO ,  MURAKAMI TOSHIHIKO

    IPC: G03G9/087 ,  G03G9/08 ,  G03G9/09

    Abstract: A method for preparing an electrophotographic printing-use developer by mixing components of toner material, fusing and kneading the toner material, and then crushing and classifying the toner material, includes the step of arranging carbon black which is one of the components of the toner material to contain water before the mixing step. This arrangement permits even dispersion of water in the mixture of the components, prevents the flowability of the mixture from being lowered, and achieves stable kneading. Therefore, improved dispersion of the components is achieved. Since water adsorption is stable, water-treated carbon showing reduced water segregation is obtained. Consequently, high quality less foggy images with high resolution are obtained.

    4.
    发明专利
    未知

    公开(公告)号：DE69941973D1

    公开(公告)日：2010-03-18

    申请号：DE69941973

    申请日：1999-12-22

    Applicant: SHARP KK

    Inventor： KURIMOTO ATSUSHI ,  FUJITA SYOUICHI ,  SAKITA HIROFUMI ,  SAIKO HIDEJI

    IPC: G03G21/00 ,  H04N1/00 ,  G03G15/00 ,  G03G21/18

    Abstract: In an image-forming section, a communication device is attached to the top surface of a developing cartridge that is detachably attached to a developing device, and a main body side communication device is attached to a copying machine main body in a manner so as to face the top portion of the communication device. When an loading operation of the developing cartridge to the copying machine main body is carried out, the main body side communication device detects this operation, and sends an electric wave for an electrical supply to the developing cartridge. The communication device transmits individual information of the developing cartridge by means of radio waves, and the main body side communication device receives, demodulates and reads this information. Based upon the results thereof, it makes a judgment as to conformity and suitability of the developing cartridge, and displays the results of the judgement or gives a warning as to the results. Thus, it becomes possible to prevent an erroneous insertion of any unit to the image-forming apparatus main body by using a method with high reliability at low costs. It is possible to provide not only the developer supplying container, but also image-forming apparatus units serving as various units related to image-forming processes and an image-forming apparatus using such units.

    5.
    发明专利
    未知

    公开(公告)号：DE69412562T2

    公开(公告)日：1999-03-18

    申请号：DE69412562

    申请日：1994-10-05

    Applicant: SHARP KK

    Inventor： NAKAMURA TADASHI ,  SAKITA HIROFUMI ,  AKAZAWA YOSHIAKI ,  OKAMOTO KANSHIRO ,  MURAKAMI TOSHIHIKO

    IPC: G03G9/087 ,  G03G9/08 ,  G03G9/09

    Abstract: A method for preparing an electrophotographic printing-use developer by mixing components of toner material, fusing and kneading the toner material, and then crushing and classifying the toner material, includes the step of arranging carbon black which is one of the components of the toner material to contain water before the mixing step. This arrangement permits even dispersion of water in the mixture of the components, prevents the flowability of the mixture from being lowered, and achieves stable kneading. Therefore, improved dispersion of the components is achieved. Since water adsorption is stable, water-treated carbon showing reduced water segregation is obtained. Consequently, high quality less foggy images with high resolution are obtained.

Patent Agency Ranking