Developing device and image forming apparatus
    61.
    发明授权
    Developing device and image forming apparatus 有权
    显影装置和图像形成装置

    公开(公告)号:US08090276B2

    公开(公告)日:2012-01-03

    申请号:US12816828

    申请日:2010-06-16

    申请人: Tadashi Kasai

    发明人: Tadashi Kasai

    IPC分类号: G03G15/08

    摘要: A developing device includes a developing roller that carries a two-component developer from a developer container to an image carrier, a first screw carrying a developer, and a second screw carrying the developer in a direction opposite to a direction in which the first screw carries the developer. The first screw and the second screw circularly convey the two-component developer while stirring the two-component developer to supply the two-component developer to the developing roller. A rotation speed of the second screw and a rotation speed of the developing roller can be drive-controlled independently, and a ratio of a rotation speed between the second screw and the developing roller is variable.

    摘要翻译: 显影装置包括显影辊,其将二组分显影剂从显影剂容器承载到图像载体,承载显影剂的第一螺杆和承载显影剂的方向与第一螺杆所携带的方向相反的方向 开发商 第一螺杆和第二螺杆在搅拌双组分显影剂的同时循环地输送双组分显影剂,以将双组分显影剂供应到显影辊。 第二螺杆的旋转速度和显影辊的旋转速度可以独立地驱动控制,并且第二螺杆和显影辊之间的转速的比率是可变的。

    IMAGE FORMING APPARATUS AND METHOD FOR DISTINGUISHING SUITABLE PARTS IN THE SAME
    62.
    发明申请
    IMAGE FORMING APPARATUS AND METHOD FOR DISTINGUISHING SUITABLE PARTS IN THE SAME 有权
    图像形成装置及其相应部件的分离方法

    公开(公告)号:US20070297814A1

    公开(公告)日:2007-12-27

    申请号:US11765794

    申请日:2007-06-20

    申请人: Tadashi Kasai

    发明人: Tadashi Kasai

    IPC分类号: G03G15/00

    摘要: An image forming apparatus that can provide notification, so that maintenance personnel of a manufacturer or the like can be made aware of a usage condition in a case where an unsuitable toner cartridge is intermittently used. The image forming apparatus is equipped with a primary storage section storing specific information concerning a replaceable part, such as a toner cartridge that can be attached or removed from a main body, and a secondary storage section storing information concerning usage of the replaceable part. The specific information is read from the primary storage section in a condition where the replaceable part is attached, and a judgment is made by a judgment section concerning whether the replaceable part is suitable. If the replaceable part cannot be judged as suitable, information concerning the use of the replaceable part is stored in the secondary storage section and notification is provided by a notification section.

    摘要翻译: 可以提供通知的图像形成装置,使得制造商等的维护人员可以在间歇地使用不合适的调色剂盒的情况下知道使用条件。 图像形成装置配备有存储关于可替换部件的特定信息的主存储部分,诸如可以从主体安装或移除的调色剂盒,以及存储关于可更换部件的使用的信息的二次存储部分。 在附加了可更换部件的状态下,从主存储部分读取具体信息,并且由判断部分判断可替换部件是否合适。 如果可替换部件不能被判断为合适,则关于使用可更换部件的信息被存储在辅助存储部分中,并且通知由通知部分提供。

    Method of adjusting a head gap for a wire dot impact printer
    65.
    发明授权
    Method of adjusting a head gap for a wire dot impact printer 失效
    调整丝网点冲击打印机头部间隙的方法

    公开(公告)号:US5518323A

    公开(公告)日:1996-05-21

    申请号:US91210

    申请日:1993-07-14

    CPC分类号: B41J25/3082 B41J25/308

    摘要: According to a method of adjusting a head gap, a wire dot head is set to a predetermined position of a reference head gap; a printing pattern for detecting printing time is printed by a plurality of pins; reference printing times of respective pins are detected. Next, a test printing is performed with test printing dots previously selected from printing data, and printing time of the test printing is detected. Then, the thickness of the printing media is calculated based on the reference printing time and the printing time of the test printing. At that time, a rule of thumb in which the difference of the printing time corresponds to the difference of the head gap, is used. Then, a shift amount of the wire dot head is calculated for setting the head gap to an optimum value according to the thickness of the printing media, and gap shifting mechanism shifts the wire dot head by the shift amount. This leads to highly accurate detection of the head gap and improves printing quality thereof.

    摘要翻译: 根据调整头部间隙的方法,将丝点头设定在基准头间隙的预定位置; 用于检测打印时间的打印图案由多个针打印; 检测相应引脚的参考打印时间。 接下来,使用先前从打印数据中选择的测试打印点执行测试打印,并且检测打印测试打印时间。 然后,基于参考打印时间和测试打印的打印时间来计算打印介质的厚度。 此时,使用其中打印时间的差异对应于头部间隙的差异的经验法则。 然后,根据打印介质的厚度,计算出打印头间隙的最佳值的位移量,并且间隙移动机构使丝网头移动移位量。 这导致头间隙的高精度检测并提高其打印质量。

    Drive system for wire dot head
    66.
    发明授权
    Drive system for wire dot head 失效
    线头驱动系统

    公开(公告)号:US5330277A

    公开(公告)日:1994-07-19

    申请号:US964260

    申请日:1992-10-21

    IPC分类号: B41J2/30

    CPC分类号: B41J2/30

    摘要: A drive system for a wire dot head is provided with sensors for detecting displacements of corresponding print wires. Each sensor outputs a movement initiation timing signal and an impact timing signal for the corresponding print wire. An electric current to be fed to an associated coil is normally controlled by these timing signals. It is detected whether these timing signals are obtained in a predetermined time period. If not, electric power is continuously fed to the coil or is forcedly cut off so that the timing signals are obtained within the predetermine time period.

    摘要翻译: 用于线点头的驱动系统设置有用于检测相应打印线的位移的传感器。 每个传感器输出针对相应打印线的运动启动定时信号和冲击定时信号。 馈送到相关线圈的电流通常由这些定时信号控制。 检测这些定时信号是否在预定时间段内获得。 如果不是,则将电力连续馈送到线圈或强制切断,使得在预定时间段内获得定时信号。

    Dot matrix print head drive method
    69.
    发明授权
    Dot matrix print head drive method 失效
    点阵打印头驱动方式

    公开(公告)号:US5039237A

    公开(公告)日:1991-08-13

    申请号:US452381

    申请日:1989-12-19

    IPC分类号: B41J2/30

    CPC分类号: B41J2/30

    摘要: In a dot matrix print head drive method for controlling head drive signals for driving dot pins in accordance with print pattern signals, a correction factor is set specifically to each dot pin; and the length of time for which the print pattern signals are to remain in effects is varied according to the correction factor, to correct the drive time for each dot pin.

    摘要翻译: 在用于根据打印图案信号控制用于驱动点针的头驱动信号的点阵打印头驱动方法中,对每个点针专门设置校正因子; 并且打印图案信号保持效果的时间长度根据校正因子而变化,以校正每个点针的驱动时间。