Parallel transport apparatus
    2.
    发明授权
    Parallel transport apparatus 失效
    平行运输装置

    公开(公告)号:US5318286A

    公开(公告)日:1994-06-07

    申请号:US14912

    申请日:1993-02-08

    IPC分类号: B65H7/12 G03G15/00 B65H3/44

    摘要: A parallel transport apparatus for transporting sheets side by side along a plurality of transport paths is provided with a feed roller which is brought into contact with uppermost sheets of a plurality of stacks of sheet contained side by side in a cassette and is adapted for feeding the uppermost sheets side by side; a separation roller pair arranged at a specified position of each of the plurality of transport paths and adapted for separating the sheets fed side by side so that one each of sheets are transported along the respective transport paths simultaneously; a sheet detector arranged downstream from the separation roller pair with respect to a sheet transport direction and adapted for detecting the presence or absence of sheets being transported side by side; and a multifeed discriminator for discriminating whether the multiple feeding has been occurred along any of the transport paths in accordance with an output from the sheet detector. Accordingly, the multiple feeding of sheets being transported side by side can be detected and coped with automatically.

    摘要翻译: 用于沿着多个传送路径并行传送片材的平行传送装置设置有馈送辊,其与盒中并排包含的多个堆叠的片材的最上面的片材接触,并且适于馈送 最上面的纸张并排; 布置在所述多个传送路径中的每一个的指定位置处的分离辊对,并且适于分离并排进给的片材,使得每个片材沿着相应的传送路径同时传送; 纸张检测器,其相对于纸张传送方向布置在分离辊对的下游,并适于检测并排传送的纸张的存在或不存在; 以及用于根据纸张检测器的输出来判断是否沿着任何传送路径发生多次进给的多页进纸鉴别器。 因此,可以检测并并行处理并排运送的纸张的多次进给。

    Sheet feeder
    3.
    发明授权
    Sheet feeder 失效
    送纸器

    公开(公告)号:US5347350A

    公开(公告)日:1994-09-13

    申请号:US127469

    申请日:1993-09-24

    IPC分类号: B65H7/04 G03G15/00 G03G21/00

    摘要: A sheet feeder includes a feeder for feeding a sheet, a cassette for containing a plurality of stacks of small sized sheets side by side therein, the cassette including a plurality of biasing members for biasing the respective stacks of small sized sheets upwards so as to bring uppermost sheets of the respective stacks into contact with the feeder, a plurality of sheet detectors arranged in positions corresponding to the respective stacks of sheets for detecting the height of the respective stacks of sheets contained in the cassette, and a controller responsive to the plurality of sheet detectors for determining the absence of sheet in the cassette when at least one of the plurality of sheet detectors detects that the height of the stack has become lower than a predetermined height, and stopping a sheet feeding operation. This sheet feeder prevents the transfer device of an image forming apparatus from being smeared due to the fact that the small sized sheet is fed from only one stack.

    摘要翻译: 纸张馈送器包括用于馈送片材的馈送器,用于在其中并排容纳多个小尺寸片材堆叠的盒子,所述盒子包括多个偏置构件,用于向上偏压各个小尺寸片材的堆叠,以便带来 相应堆叠的最上面的纸张与供纸器接触,多个纸张检测器布置在与各个纸张堆叠对应的位置中,用于检测包含在纸盒中的各个纸张堆叠的高度,以及响应于多个纸张的控制器 当多个片材检测器中的至少一个检测到堆叠的高度已经变得低于预定高度并且停止片材进给操作时,确定纸盒中没有纸张的片材检测器。 由于小尺寸片材仅从一个堆叠进给的事实,该片材进给器防止图像形成装置的传送装置被弄脏。

    Image forming apparatus capable of forming images side by side
    4.
    发明授权
    Image forming apparatus capable of forming images side by side 失效
    能够并排形成图像的图像形成装置

    公开(公告)号:US5359402A

    公开(公告)日:1994-10-25

    申请号:US985416

    申请日:1992-12-04

    CPC分类号: G06K15/16

    摘要: An image forming apparatus includes a mount portion which permits a cassette containing a plurality of stacks of sheets arranged side by side in rows to be mounted to the image forming apparatus; a feeder for feeding sheets side by side in a state where the cassette is mounted to the mount portion; an imaging assembly for forming an image on each of the sheets being fed side by side; a sheet sensor for detecting the presence or absence of a sheet contained in the cassette for each row; and a control unit for, when the absence of a sheet is detected in any of the rows, stopping at least an image forming operation along a corresponding transport path. Accordingly, even if all the sheets run out in any one of the rows, the corresponding transport path and the like can be prevented from getting smeared due to the image forming operation carried out despite the fact that no sheets are being fed.

    摘要翻译: 图像形成装置包括:安装部,其允许包含并排排列地安装在图像形成装置上的多个堆叠的片材的盒; 用于在盒安装到安装部分的状态下并排供纸的供料器; 用于在每个所述片材上形成图像的成像组件被并排供给; 用于检测每行中包含在盒中的片材的存在或不存在的片材传感器; 以及控制单元,用于当在任何行中检测到纸张的不存在时,沿着相应的传送路径至少停止图像形成操作。 因此,即使所有的片材都在任何一列中排出,也可以防止由于进行图像形成操作而导致相应的传送路径等被弄脏,尽管没有进纸。

    Image forming apparatus
    7.
    发明授权

    公开(公告)号:US4937622A

    公开(公告)日:1990-06-26

    申请号:US275019

    申请日:1988-11-22

    申请人: Yoshinori Makiura

    发明人: Yoshinori Makiura

    IPC分类号: B65H7/06 G03G15/00

    CPC分类号: G03G15/70

    摘要: An image forming apparatus having a plurality of copy paper detector sensors in a delivery passage for copy paper. After a first copy paper detector sensor has been turned ON, if a copy paper detector sensor just downstream of the first copy paper detector sensor is not turned ON within a predetermined period of time, there are checked the ON/OFF status of the first copy paper detector sensor and copy paper detector sensors upstream thereof. If one or more of the copy paper detector sensors are ON, the length of the copy paper is compared with a distance between each of the last-mentioned copy paper detector sensors and a copy paper detector sensor just downstream thereof. Based on the comparison result, the position where the copy paper has jammed, is judged.

    Copying machine with a variable magnification device
    8.
    发明授权
    Copying machine with a variable magnification device 失效
    用可变放大装置复印机器

    公开(公告)号:US4618252A

    公开(公告)日:1986-10-21

    申请号:US714745

    申请日:1985-03-22

    CPC分类号: G03G15/6508 G03G15/6502

    摘要: A copying machine with a variable magnification device comprising two paper cassettes mounted in a drawable manner in vertically spaced relation and a select key for the paper cassettes, wherein the desired cassette can be selected as a source of the copying paper by operating the select key. The upper paper cassette is provided with the copying paper for variable magnification copying, and the upper cassette is automatically selected as the paper source when a detector indicates that the variable magnification copying mode has been selected.

    摘要翻译: 一种具有可变放大装置的复印机,包括以可垂直方式以垂直间隔的关系安装的两个纸盒和用于纸盒的选择键,其中通过操作选择键可以选择所需的盒带作为复印纸的来源。 上部纸盒设置有用于可变倍率复印的复印纸,并且当检测器指示已经选择可变倍率复印模式时,上盒被自动选择为纸源。

    Image forming apparatus including a paper feeding device having improved
paper jam detection capability
    9.
    发明授权
    Image forming apparatus including a paper feeding device having improved paper jam detection capability 失效
    图像形成装置包括具有改进的卡纸检测能力的送纸装置

    公开(公告)号:US5485247A

    公开(公告)日:1996-01-16

    申请号:US105929

    申请日:1993-08-13

    CPC分类号: G03G15/70 G03G2215/00548

    摘要: A paper feeding device is capable of judging that a paper jam occurs on the basis of output from a first paper detecting switch and a second paper detecting switch. These paper detecting switches are respectively provided ahead of and behind a registration roller which feeds paper sheets to an image forming section. If the first paper detecting switch is turned on when a predetermined time has elapsed since the registration roller started to feed a paper sheet to the image forming section, it is judged that a duplicate paper feeding state has occurred where a plurality of paper sheets are simultaneously fed. If the second paper detecting switch is turned off in the case where it is judged that a duplicate paper feeding state has occurred, it is judged that a paper jam has not occurred. The registration roller is stopped so it will later be ready to feed the subsequent paper sheet. Even when the paper sheets are simultaneously fed in a duplicate paper feeding state, it is not judged that a paper jam occurs as long as the paper sheets are fed one at a time to the image forming section. However, if both the first and second paper detecting switches remain on after the predetermined time, then it is judged that a paper jam has occurred.

    摘要翻译: 供纸装置能够基于来自第一纸张检测开关和第二纸张检测开关的输出来判断卡纸。 这些纸张检测开关分别设置在将纸张馈送到图像形成部分的定位辊的前面和后面。 如果从定位辊开始将纸张送入图像形成部分经过了预定时间之后第一个纸张检测开关打开,则判断在多个纸张同时发生复印纸进给状态 喂。 如果在判断出送纸状态已经发生的情况下第二纸张检测开关被关闭,则判断为没有发生卡纸。 定位辊停止,以便随后准备送入后续的纸张。 即使在复印纸进给状态下同时进给纸张的情况下,只要纸张一次一张地向图像形成部分供纸就不会发生卡纸。 然而,如果第一和第二纸张检测开关在预定时间之后保持接通,则判断已经发生卡纸。