Removable developing unit for an electrostatic copier and locking device
therefor
    2.
    发明授权
    Removable developing unit for an electrostatic copier and locking device therefor 失效
    用于静电复印机的可拆卸显影单元及其锁定装置

    公开(公告)号:US4931837A

    公开(公告)日:1990-06-05

    申请号:US309912

    申请日:1989-02-14

    IPC分类号: G03G15/01 G03G15/09 G03G21/00

    CPC分类号: G03G15/0126 G03G15/09

    摘要: An image-forming apparatus is provided with a photosensitive drum rotatably located in a housing, and a developing device for developing the latent image formed on the surface of the photosensitive drum. A first developing unit of the developing device develops the latent image by a color developing agent. A second developing unit develops the latent image by a second black developing agent. The first and second developing units are alternatively driven by a switch provided on a control panel which is located on the housing. The first developing unit is in the form of a cartridge which can be removably set in the housing. A pair of positioning members are attached to the front and rear walls of the developing agent supply section of the first developing unit. Both end support portions of the handle are swingably mounted on the positioning members by supporting shafts, individually. Each support portion of the handle is fitted with a hook which can rock around its corresponding supporting shaft. The hook engages its corresponding retaining pin on the housing, thereby restraining the handle from moving upward. An engaging recess (a first positioning portion) and an end face (a second positioning portion), both formed on the bottom side of each positioning member, are adapted to engage and abut against positioning pins on the housing, respectively. Thus, the first developing unit is held in a prescribed position.

    Image forming apparatus
    3.
    发明授权

    公开(公告)号:US4857954A

    公开(公告)日:1989-08-15

    申请号:US168573

    申请日:1988-03-07

    IPC分类号: G03G15/01 G03G15/09 G03G21/00

    CPC分类号: G03G15/0126 G03G15/09

    摘要: An image-forming apparatus is provided with a photosensitive drum rotatably located in a housing, and a developing device for developing the latent image formed on the surface of the photosensitive drum. A first developing unit of the developing device develops the latent image by a first red developing agent. A second developing unit develops the latent image by a second black developing agent. The first and second developing units, each of which includes a developing roller and a magnet roll, are alternatively driven by a switch provided on a control panel which is located on the housing. The respective magnet rolls of the first and second developing units are allowed to rock through about 25 degrees each. As the magnet rolls rock within this range, magnetic brushes of the developing agents can be formed on the surfaces of the developing rollers, respectively, or removed therefrom. When the magnet rolls of the first and second developing units are shifted to the prescribed positions by a magnet roll drive mechanism, the magnetic brushes are formed on the surface of only one of the developing rollers of the first and second developing units.

    Image-forming apparatus
    4.
    发明授权
    Image-forming apparatus 失效
    图像形成装置

    公开(公告)号:US4579443A

    公开(公告)日:1986-04-01

    申请号:US711659

    申请日:1985-03-14

    摘要: A copying or printing machine comprises a microcomputer including a random access memory in which a set of coded signals may be written in and read out, a read-only memory having a sequence control for accomplishing printing or copying operation, and a processing unit operative to reproduce a copy of an original. The machine is provided with a first developing device devoted to colored development and an alternately-used second developing device devoted to black development. If the interrupt copying mode is set up during a copying run, copying conditions for the copying run are stored in the RAM, and the interrupt copying run is allowed. In that case, irrespective of copying conditions of the previous copying run, the interrupt copying mode permits the second developing device to be automatically selected. Upon the termination of the interrupt copying run, copying conditions for the previous copying run are read from the RAM, to permit the run to be completed. The above-mentioned control is effected by a sequence control program stored in the ROM.

    摘要翻译: 复印机或打印机包括微型计算机,其包括随机存取存储器,其中一组编码信号可被写入和读出,具有用于完成打印或复印操作的顺序控制的只读存储器,以及一个操作至 复制原件的副本。 该机器设置有专用于彩色显影的第一显影装置和专用于黑色显影的交替使用的第二显影装置。 如果在复印运行期间设置了中断复印模式,则复制运行的复制条件存储在RAM中,允许中断复制运行。 在这种情况下,不管以前的复印运行的复印条件如何,中断复印模式允许自动选择第二显影装置。 中断复制运行结束后,从RAM中读取先前复制运行的复制条件,以允许运行完成。 上述控制由存储在ROM中的顺序控制程序来实现。

    Image forming apparatus with removable developing means
    5.
    发明授权
    Image forming apparatus with removable developing means 失效
    具有可拆卸显影装置的图像形成装置

    公开(公告)号:US5153646A

    公开(公告)日:1992-10-06

    申请号:US498906

    申请日:1990-03-26

    IPC分类号: G03G15/01 G03G15/09

    CPC分类号: G03G15/09 G03G15/0126

    摘要: An image forming apparatus is provided with a developing device for developing a latent image formed on the surface of the photosensitive drum. The developing device includes a first developing unit for developing the latent image by use of a first color developing agent and a second developing unit for developing the latent image by use of a second color developing agent. The first and second developing units are selectively driven and devices for inserting/removing the first and second development units are also provided. The image forming apparatus has a selecting device for interrupting an image forming process which is in progress to automatically select an image forming process which uses the second developing unit.

    摘要翻译: 图像形成装置设置有用于显影形成在感光鼓表面上的潜像的显影装置。 显影装置包括用于利用第一彩色显影剂显影潜像的第一显影单元和用于利用第二彩色显影剂显影潜像的第二显影单元。 选择性地驱动第一和第二显影单元,并且还提供用于插入/移除第一和第二显影单元的装置。 图像形成装置具有用于中断正在进行的图像形成处理的选择装置,以自动选择使用第二显影单元的图像形成处理。

    Image forming apparatus
    6.
    发明授权
    Image forming apparatus 失效
    图像形成装置

    公开(公告)号:US4814823A

    公开(公告)日:1989-03-21

    申请号:US29354

    申请日:1987-03-23

    IPC分类号: G03G15/01 G03G15/09 G03G21/00

    CPC分类号: G03G15/0126 G03G15/09

    摘要: An image-forming apparatus is provided with a photosensitive drum rotatably located in a housing, and a developing device for developing the latent image formed on the surface of the photosensitive drum. A first developing unit of the developing device develops the latent image by a first red developing agent. A second developing unit develops the latent image by a second black developing agent. The first and second developing units are alernatively driven by a switch provided on a control panel which is located on the housing. A copy mode for black is automatically established when the power is turned on or if no operation is performed for a prescribed time after a foregoing copying operation, in a mode for any other color than black, is ended.

    摘要翻译: 图像形成装置设置有可旋转地位于壳体中的感光鼓和用于使形成在感光鼓表面上的潜像显影的显影装置。 显影装置的第一显影单元通过第一红色显影剂显影潜像。 第二显影单元通过第二黑色显影剂显影潜像。 第一和第二显影单元由设置在位于壳体上的控制面板上的开关同时驱动。 在上述复印操作之后,当电源接通或者在上述复印操作之后的规定时间内没有进行任何操作时,黑色的复制模式在任何其他颜色比黑色的模式结束时自动建立。

    Monochromatic photocopying apparatus and method including color selection
    7.
    发明授权
    Monochromatic photocopying apparatus and method including color selection 失效
    单色复印装置及方法,包括色彩选择

    公开(公告)号:US4619514A

    公开(公告)日:1986-10-28

    申请号:US661191

    申请日:1984-10-15

    申请人: Fumito Ide

    发明人: Fumito Ide

    IPC分类号: G03G15/01 G03G15/00 G03G15/08

    CPC分类号: G03G15/08 G03G15/502

    摘要: A copying machine employs a plurality of color developers. Monochromatic copy is reproduced by selecting one of the color developers, where one-colored toner particles are contained. The copying machine also comprises a color selection switch and an LCD display panel for displaying pictorial diagrams. The color selection for each color developer can be visually recognized by the pictorial diagram.

    摘要翻译: 复印机采用多个彩色显影剂。 通过选择其中包含单色调色剂颗粒的彩色显影剂之一来复制单色复制品。 复印机还包括用于显示图示的颜色选择开关和LCD显示面板。 每个彩色显影剂的颜色选择可以通过图示来视觉识别。

    Image forming apparatus with an image scanning apparatus and an
automatic document feeder

    公开(公告)号:US5241346A

    公开(公告)日:1993-08-31

    申请号:US925178

    申请日:1992-08-06

    IPC分类号: G03G15/00 G03G15/04

    摘要: An image forming apparatus of the present invention has an image forming device including an image scanning device and an automatic document feeder. A document on a platen located on the image forming device is positioned in a predetermined position. The scanning device starts the scanning operation from a starting position opposite to the predetermined position. The scanning position of the scanning device is individually determined to be a position corresponding to the document size detected by the detecting device. Therefore, the image forming operation is performed without failing to form the image on the copying paper. Furthermore, the speed of the image forming operation is increased.

    Image forming apparatus with an image scanning apparatus and an
automatic document feeder
    9.
    发明授权
    Image forming apparatus with an image scanning apparatus and an automatic document feeder 失效
    具有图像扫描装置和自动文件馈送装置的图像形成装置

    公开(公告)号:US5192975A

    公开(公告)日:1993-03-09

    申请号:US718409

    申请日:1991-06-24

    摘要: An image forming apparatus of the present invention has an image forming device including an image scanning device and an automatic document feeder. A document on a platen located on the image forming device is positioned in a predetermined position. The scanning device starts the scanning operation from a starting position opposite to the predetermined position. The scanning position of the scanning device is individually determined to be a position corresponding to the document size detected by the detecting device. Therefore, the image forming operation is performed without failing to form the image on the copying paper. Furthermore, the speed of the image forming operation is increased.

    摘要翻译: 本发明的图像形成装置具有包括图像扫描装置和自动文件进给器的图像形成装置。 位于图像形成装置上的台板上的文件被定位在预定位置。 扫描装置从与预定位置相反的开始位置开始扫描操作。 扫描装置的扫描位置被单独地确定为与由检测装置检测到的原稿尺寸相对应的位置。 因此,在没有在复印纸上形成图像的情况下执行图像形成操作。 此外,图像形成操作的速度增加。

    Image forming apparatus with easily removable developing units
    10.
    发明授权
    Image forming apparatus with easily removable developing units 失效
    图像形成装置,具有易拆卸的显影单元

    公开(公告)号:US4956673A

    公开(公告)日:1990-09-11

    申请号:US243481

    申请日:1988-09-12

    IPC分类号: G03G15/01 G03G15/09 G03G21/00

    CPC分类号: G03G15/0126 G03G15/09

    摘要: An image forming apparatus is provided with a developing device for developing a latent image formed on the surface of a photosensitive drum. The developing device includes a first developing unit for developing the latent image by use of a first colon developing agent and a second developing unit for developing the latent image by use of a second colon developing agent. The first and second developing units are selectively driven and devices for inserting/removing the first and second development units are also provided. The inserting/removing device includes a handle on the developing unit having first and second hooks which are rotated by the handle to engage pins on the housing of the image-forming apparatus to lock the developing unit in operative relationship with the photosensitive drum.