Copying magnification setting device for an electrophotographic copying
apparatus
    1.
    发明授权
    Copying magnification setting device for an electrophotographic copying apparatus 失效
    复制电子照相复印设备的放大倍数设定装置

    公开(公告)号:US5023663A

    公开(公告)日:1991-06-11

    申请号:US934350

    申请日:1986-11-24

    IPC分类号: G03G15/00

    CPC分类号: G03G15/50 G03G15/5016

    摘要: An image forming apparatus that is capable of providing various copy ratios includes an original table that can receive an original document from an image carrier. The original is then illuminated, and a focusing lens system is capable of focusing reflected light from the original document onto a photosensitive member. The focusing lens system is movable. A drive assembly can cause relative movement of the original and a light system for illuminating the original, while a second drive member can vary the distance from the original to the focusing lens system whereby the image stays within the fixed focal length of the optical system while accommodating the speed necessary for a specified copy ratio.

    Copying apparatus with subjectively stored magnification values
    3.
    发明授权
    Copying apparatus with subjectively stored magnification values 失效
    以主观存储的放大值复印设备

    公开(公告)号:US4868610A

    公开(公告)日:1989-09-19

    申请号:US69403

    申请日:1987-07-02

    CPC分类号: G03G15/041

    摘要: A copying apparatus including a numeric value input device, a numeric memory, a numeric display unit, an arithmetic device, an operating device for actuating the arithmetic device, a control device for causing the numeric memory to store an arithmetic result obtained by an arithmetic operation of the arithmetic device, and a magnification control device for controlling operations of the copying apparatus on the basis of the arithmetic result.

    摘要翻译: 一种复印装置,包括数值输入装置,数字存储器,数字显示单元,运算装置,用于致动运算装置的操作装置,用于使数字存储器存储通过算术运算获得的运算结果的控制装置 以及用于根据算术结果控制复印装置的操作的倍率控制装置。

    Copying machine
    4.
    发明授权
    Copying machine 失效
    复印机

    公开(公告)号:US4657380A

    公开(公告)日:1987-04-14

    申请号:US839780

    申请日:1986-03-13

    CPC分类号: G03G15/5095 G03G15/041

    摘要: A copying machine wherein a magnification ratio can be changed substantially continuously within a predetermined range, comprising means for setting a longitudinal magnification ratio of a copied image against an original and a lateral magnification ratio of a copied image against the original independently, image shifting means for shifting an image projected on a photosensitive drum in a direction away from a paper separation belt, first calculating means for calculating a lateral magnification factor, second calculating means for calculating a longitudinal magnification factor, and means for modifying the longitudinal and lateral copy magnification ratios respectively using the selected magnification ratio, the longitudinal and lateral magnification factors, whereby an image can be formed on the copy paper, preventing image drop out.

    摘要翻译: 一种复印机,其中可以在预定范围内基本上连续地改变放大率,包括用于将复印图像的纵向放大倍数与复印图像相对于原稿独立设置的原稿和横向放大倍率的装置,用于 沿着远离纸张分离带的方向移动投影在感光鼓上的图像​​,用于计算横向放大倍数的第一计算装置,用于计算纵向放大系数的第二计算装置,以及分别修改纵向和横向复印放大率的装置 使用所选择的倍率,纵向和横向放大系数,从而可以在复印纸上形成图像,从而防止图像掉落。

    Copying magnification setting device for an electrophotographic copying
apparatus
    5.
    发明授权
    Copying magnification setting device for an electrophotographic copying apparatus 失效
    复制电子照相复印设备的放大倍数设定装置

    公开(公告)号:US4543643A

    公开(公告)日:1985-09-24

    申请号:US498885

    申请日:1983-05-27

    IPC分类号: G03G15/00 G06F1/00

    CPC分类号: G03G15/50 G03G15/5016

    摘要: Disclosed herein is a device for setting a copying magnification in an electrophotographic copying apparatus. The device comprises means for manually inputting a numerical value, a memory means having a plurality of memory locations, selection key means for selecting one from the plurality of memory locations and control means for storing a numerical value input by the numerical value input means in said one of the memory locations selected by the selection key means, so that the copying apparatus operates to set a copying magnification by a numerical value stored in said one of the memory locations.

    摘要翻译: 这里公开了一种用于设置电子照相复印装置中的复印倍率的装置。 该装置包括用于手动输入数值的装置,具有多个存储位置的存储装置,用于从多个存储单元中选择一个的选择键装置和用于存储由所述数值输入装置输入的数值的控制装置 由选择键装置选择的一个存储位置,使得复印装置操作以通过存储在所述一个存储单元中的数值设置复印倍率。

    Paper transport control device for use in mechanical arrangement
including manual paper feeding mechanism
    6.
    发明授权
    Paper transport control device for use in mechanical arrangement including manual paper feeding mechanism 失效
    纸张输送控制装置,用于机械布置,包括手动给纸机构

    公开(公告)号:US4392740A

    公开(公告)日:1983-07-12

    申请号:US254275

    申请日:1981-04-15

    IPC分类号: G03G15/00

    CPC分类号: G03G15/6529 G03G15/70

    摘要: An improved paper transport control device for use in a mechanical arrangement including a manual paper feeding mechanism, in which at least one of the mechanical operations, such as jam detection, is caused to be inoperative when the paper is drawn out within a predetermined period of time after the paper has been fed manually, so as to enable the immediate resumption of the next mechanical operation even if the paper is drawn out after the manual paper feeding has been started, thus significantly improving the working efficiency of the device.

    摘要翻译: 一种用于机械装置的改进的纸张输送控制装置,其包括手动给纸机构,其中当纸张在预定时间段内被拉出时,使诸如卡纸检测的机械操作中的至少一个不起作用 在手动进纸之后的时间,即使在手动进纸开始之后纸张被拉出,也能立即恢复下一个机械操作,从而显着提高了设备​​的工作效率。

    Paper jam detecting device for use in an electrophotographic copying
machine
    7.
    发明授权
    Paper jam detecting device for use in an electrophotographic copying machine 失效
    用于电子照相复印机的卡纸检测装置

    公开(公告)号:US4307957A

    公开(公告)日:1981-12-29

    申请号:US145250

    申请日:1980-04-30

    IPC分类号: B65H7/06 G03G15/00 G03G21/00

    CPC分类号: G03G15/70

    摘要: This invention is directed to a paper jam detecting device for use in an electrophotographic copying machine which comprises a plurality of paper detector located along the passage of the copy paper transported during copying process, first timer adapted to count the first period of time so as to detect the leading edge of the copy paper by any one of the paper detector and second timer adapted to count the second period of time so as to detect the trailing edge of the copy paper by said one of the paper detector, whereby paper jam can be detected in case where no paper is detected on the first period of time or in case where a paper is detected on the second period of time.

    摘要翻译: 本发明涉及一种用于电子照相复印机的卡纸检测装置,其包括沿着复印过程中传送的复印纸通过的多个纸检测器,第一定时器适于对第一时间段进行计数,以便 通过纸张检测器和第二计时器中的任何一个检测复印纸的前缘,其适于计数第二时间段,以便检测所述纸张检测器中的所述一个纸张检测器的复印纸的后缘,从而卡纸可以 在第一时间段没有检测到纸张的情况下或者在第二时间段检测到纸张的情况下检测到。

    Electrophotographic copying apparatus
    9.
    发明授权
    Electrophotographic copying apparatus 失效
    电子复印机

    公开(公告)号:US4113374A

    公开(公告)日:1978-09-12

    申请号:US736189

    申请日:1976-10-27

    CPC分类号: G03G15/70 G03G15/30

    摘要: The present invention is an electrophotographic copying apparatus which includes a group of switches disposed along the path of the copy paper. These switches are so arranged as to control the functions of corona charging, exposure and aligning the forward edge of the image formed on the photoreceptor with the leading edge of the copy paper, while the starting of the transfer device and the function of the copy paper separation device are controlled through a control cam which is driven by actuating signals produced by one of these switches. Since the developing and transfer functions are arranged to be suspended by a drum cam rotating as one unit with the photoreceptor drum, the possibility of copy paper jamming is decreased to a large extent through reduction of the number of switches employed, while undesirable developing and transfer at the slot portion or seam portion of the photoreceptor are advantageously eliminated.

    Toner dispensing device with electrical integrating circuit
    10.
    发明授权
    Toner dispensing device with electrical integrating circuit 失效
    带电集成电路的调色剂分配装置

    公开(公告)号:US4101214A

    公开(公告)日:1978-07-18

    申请号:US645914

    申请日:1975-12-31

    IPC分类号: G03G15/06 G03G15/08 G03G15/10

    CPC分类号: G03G15/105

    摘要: An electrophotographic copying apparatus incorporating therein an improved developing material supplying device which supplying device includes a copy paper detecting unit for detecting the length of the copy paper, an integrating circuit for integrating the length of the copy paper detected by the detecting unit and a supply tank driving unit which operates the supply tank to supply a concentrated developing material into the developing tank through a valve, upon receipt of a signal from the integrating circuit, by which arrangement, the concentrated developing material can be supplied to the developing tank every time after a predetermined length of the copy paper is fed through the developing tank.

    摘要翻译: 一种其中包含改进的显影材料供应装置的电子照相复印装置,该供应装置包括用于检测复印纸的长度的复印纸检测单元,用于将由检测单元检测到的复印纸的长度与供给槽 驱动单元,其操作供应罐,以在收集来自积分回路的信号时通过阀将浓缩的显影材料供应到显影槽中,通过该装置,浓缩的显影材料可以每次在 复印纸的预定长度通过显影槽进给。