公开(公告)号：EP0260992B1

公开(公告)日：1993-07-14

申请号：EP87308301.8

申请日：1987-09-18

申请人： VICTOR COMPANY OF JAPAN, LIMITED

发明人： Takanashi, Itsuo ,  Tanaka, Hideshi ,  Ohara, Terumi ,  Miyazaki, Kenichi ,  Takahashi, Toshinori ,  Kitamura, Hiroki ,  Shinya, Tadao ,  Mizoguchi, Yutaka Matsumoto-Ryo

IPC分类号： H04N1/40

CPC分类号： H04N1/4005 ,  H04N1/40031

公开(公告)号：EP0260992A3

公开(公告)日：1990-05-30

申请号：EP87308301.8

申请日：1987-09-18

申请人： VICTOR COMPANY OF JAPAN, LIMITED

发明人： Takanashi, Itsuo ,  Tanaka, Hideshi ,  Ohara, Terumi ,  Miyazaki, Kenichi ,  Takahashi, Toshinori ,  Kitamura, Hiroki ,  Shinya, Tadao ,  Mizoguchi, Yutaka Matsumoto-Ryo

IPC分类号： H04N1/40

CPC分类号： H04N1/4005 ,  H04N1/40031

摘要： A gradation control device for a thermal ink-transfer type printing apparatus controls an applying time of a current to each of heating elements (R1-Rn) of a thermal printing head (16) depending on a voltage drop introduced between a power source and the thermal printing head, so that it is possible to constantly print the same gradation level with the same printing dot size regardless of the printing data.

公开(公告)号：EP0260992A2

公开(公告)日：1988-03-23

申请号：EP87308301.8

申请日：1987-09-18

申请人： VICTOR COMPANY OF JAPAN, LIMITED

发明人： Takanashi, Itsuo ,  Tanaka, Hideshi ,  Ohara, Terumi ,  Miyazaki, Kenichi ,  Takahashi, Toshinori ,  Kitamura, Hiroki ,  Shinya, Tadao ,  Mizoguchi, Yutaka Matsumoto-Ryo

IPC分类号： H04N1/40

CPC分类号： H04N1/4005 ,  H04N1/40031

摘要： A gradation control device for a thermal ink-transfer type printing apparatus controls an applying time of a current to each of heating elements (R1-Rn) of a thermal printing head (16) depending on a voltage drop introduced between a power source and the thermal printing head, so that it is possible to constantly print the same gradation level with the same printing dot size regardless of the printing data.

摘要翻译： 用于热转印型打印设备的灰度控制装置根据在电源和电源之间引入的电压降来控制对热敏打印头（16）的每个加热元件（R1-Rn）的施加时间 热打印头，使得可以不管打印数据如何，以相同的打印点大小不断地打印相同的灰度级。