Removable developing unit for an electrostatic copier and locking device
therefor
    1.
    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
    2.
    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
    3.
    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 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
    5.
    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
    6.
    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.

    Copying apparatus with a movably mounted original table
    8.
    发明授权
    Copying apparatus with a movably mounted original table 失效
    用可移动安装的原始桌子复印设备

    公开(公告)号:US4596456A

    公开(公告)日:1986-06-24

    申请号:US652054

    申请日:1984-09-19

    申请人: Fumito Ide

    发明人: Fumito Ide

    摘要: In a copying apparatus, an original image signal is obtained by optically scanning an original surface using an original rest slidably mounted on a housing. The copying apparatus has a construction for detecting malfunctions such as a paper jam or a toner empty state, and a mechanism for forcibly moving the original rest to a position suitable for eliminating a paper jam or a position suitable for replenishing the toner, when these malfunctions are detected.

    摘要翻译: 在复印装置中,通过使用可滑动地安装在壳体上的原稿来对原始表面进行光学扫描来获得原始图像信号。 复印装置具有用于检测诸如卡纸或调色剂空闲状态的故障的结构,以及用于当这些故障时强制将原稿静止移动到适于消除卡纸或适于补充调色剂的位置的位置的机构 被检测到。

    Image forming apparatus enabling reversible selection of a default mode
of operation
    9.
    发明授权
    Image forming apparatus enabling reversible selection of a default mode of operation 失效
    图像形成装置能够可逆地选择默认操作模式

    公开(公告)号:US4835572A

    公开(公告)日:1989-05-30

    申请号:US115554

    申请日:1987-10-29

    申请人: Fumito Ide

    发明人: Fumito Ide

    CPC分类号: G03G15/5095 G03G15/607

    摘要: An image forming apparatus is provided which includes a document set section, a document size detecting device, a medium set section, a device for picking up the size of the medium, a medium feed device, and an image forming device for forming an image of a document in the document set section on the medium of an image forming location. The apparatus further includes an auto magnification designating device for generating data to designate an image forming magnification according to data representative of the size of the medium picked up by the pick up device by using the document size as detected by the document size detecting device. Further, a manual magnification designating device is providing for manually designating a desired magnification for image forming. A first priority means for operating the auto magnification designating device to define a first default mode of operation of the apparatus and a second priority means for operating the manual magnification designating means for defining a second default mode of operation of the image forming device are also provided. Finally, a priority select device is provided for reversibly selecting between the first and second priority means so as to select a default mode of operation of the apparatus.

    摘要翻译: 提供一种图像形成装置,其包括文件设置部分,原稿尺寸检测装置,介质装置部分,用于拾取介质尺寸的装置,介质进给装置和用于形成图像的图像的图像形成装置 在图像形成位置的介质上的文档集中的文档。 该装置还包括一个自动放大指定装置,用于根据由文件尺寸检测装置检测到的文件大小,根据代表由拾取装置拾取的介质的尺寸的数据产生指定图像形成倍率的数据。 此外,手动放大指定装置提供用于手动指定用于图像形成的期望放大率。 用于操作自动放大指定装置以定义装置的第一默认操作模式的第一优先装置,还提供用于操作用于定义图像形成装置的第二默认操作模式的手动放大指定装置的第二优先装置 。 最后,提供优先选择装置,用于在第一和第二优先装置之间可逆选择,以便选择装置的默认操作模式。