公开(公告)号：US5347350A

公开(公告)日：1994-09-13

申请号：US127469

申请日：1993-09-24

申请人： Akinobu Nakahata ,  Hiroshi Kubota ,  Kouji Migita ,  Masami Fuchi ,  Kenji Oda ,  Yoshinori Makiura ,  Katsuhide Yamaguchi

发明人： Akinobu Nakahata ,  Hiroshi Kubota ,  Kouji Migita ,  Masami Fuchi ,  Kenji Oda ,  Yoshinori Makiura ,  Katsuhide Yamaguchi

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

CPC分类号： B65H7/04 ,  B65H2511/152 ,  B65H2511/20 ,  B65H2511/212 ,  B65H2511/515 ,  B65H2553/412 ,  B65H2553/612

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。

公开(公告)号：US5359402A

公开(公告)日：1994-10-25

申请号：US985416

申请日：1992-12-04

申请人： Akinobu Nakahata ,  Katsuhide Yamaguchi ,  Kenji Oda ,  Kouji Migita ,  Hiroshi Kubota ,  Yoshinori Makiura ,  Masami Fuchi

发明人： Akinobu Nakahata ,  Katsuhide Yamaguchi ,  Kenji Oda ,  Kouji Migita ,  Hiroshi Kubota ,  Yoshinori Makiura ,  Masami Fuchi

IPC分类号： B41J11/42 ,  B41J11/48 ,  B41J13/00 ,  B41J29/48 ,  B65H3/44 ,  B65H7/04 ,  G03G15/00 ,  G03G21/00 ,  G06K15/16

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。

公开(公告)号：US5320338A

公开(公告)日：1994-06-14

申请号：US14435

申请日：1993-02-05

申请人： Masahiro Shinohara ,  Kazumi Shirasaka ,  Akinobu Nakahata ,  Kenji Oda ,  Masami Fuchi ,  Yoshinori Makiura ,  Kouji Migita

发明人： Masahiro Shinohara ,  Kazumi Shirasaka ,  Akinobu Nakahata ,  Kenji Oda ,  Masami Fuchi ,  Yoshinori Makiura ,  Kouji Migita

IPC分类号： B65H1/04 ,  G03G15/00 ,  B65H1/22

CPC分类号： B65H1/266 ,  G03G15/6502 ,  B65H2511/10 ,  B65H2511/20

摘要： A cassette is attachable to an image forming apparatus including a feed roller. The cassette is provided with a push-up member for pushing up leading edges of sheets placed in the cassette so as to bring the uppermost one of the contained sheets into contact with the feed roller, and a restricting member for restricting displacement of the contained sheets from a specified position. By attaching thus constructed cassette to the image forming apparatus, sheets can be fed properly by the feed roller.

摘要翻译： 盒式磁带可附接到包括馈送辊的图像形成装置。 该盒带有一个用于向上推动放置在盒中的片材的前缘的上推构件，以使得最上面的一个片材与进给辊接触;以及限制构件，用于限制容纳片材的位移 从指定的位置。 通过将这样构造的盒子附接到图像形成装置，可以通过进给辊适当地进给片材。

公开(公告)号：US5318286A

公开(公告)日：1994-06-07

申请号：US14912

申请日：1993-02-08

申请人： Yoshinori Makiura ,  Akinobu Nakahata ,  Kazumi Shirasaka ,  Kenji Oda ,  Masahiro Shinohara ,  Kouji Migita

发明人： Yoshinori Makiura ,  Akinobu Nakahata ,  Kazumi Shirasaka ,  Kenji Oda ,  Masahiro Shinohara ,  Kouji Migita

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

CPC分类号： G03G15/6511 ,  G03G15/703 ,  G03G2215/00383 ,  G03G2215/00396 ,  G03G2215/004 ,  G03G2215/00548 ,  G03G2215/00721 ,  G03G2215/00924

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。

公开(公告)号：US5199695A

公开(公告)日：1993-04-06

申请号：US835498

申请日：1992-02-14

申请人： Akinobu Nakahata ,  Hiroshi Kubota ,  Kenji Oda ,  Yoshinori Makiura

发明人： Akinobu Nakahata ,  Hiroshi Kubota ,  Kenji Oda ,  Yoshinori Makiura

IPC分类号： B65H1/12 ,  B65H1/28

CPC分类号： B65H1/12 ,  B65H1/28

摘要： A cassette for feeding sheet materials is equipped with a container body in which two sheet material-holding devices are arranged in parallel in the direction of width. Each of the sheet material-holding devices includes a pair of width restriction members which are so disposed that their positions can be freely adjusted in the direction of width. Each of the sheet material-holding devices further includes a rear end restriction member that is so disposed that its position can be freely adjusted in the feeding direction.

公开(公告)号：US5422710A

公开(公告)日：1995-06-06

申请号：US14434

申请日：1993-02-05

申请人： Kazumi Shirasaka ,  Akinobu Nakahata ,  Masahiro Shinohara ,  Kenji Oda ,  Kouji Migita

发明人： Kazumi Shirasaka ,  Akinobu Nakahata ,  Masahiro Shinohara ,  Kenji Oda ,  Kouji Migita

IPC分类号： B65H29/20 ,  B65H29/70 ,  G03G15/00 ,  G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/2028 ,  G03G15/6582

摘要： A sheet discharging device is used in an image forming apparatus including fixing means adopting heat roller fixing method of fusing a toner image transferred to a sheet so as to fix the same on the sheet while transporting the sheet by heating and pressing rollers rotated at a specified speed. This sheet discharging device is provided with a sheet discharger including first and second rollers and arranged downstream from the fixing device, a contact point of the first and second rollers being located toward the pressing roller from a tangent line on a point of a circumferential surface of the heat heating roller which intersects with a straight line connecting centers of the heating and pressing rollers, and a drive mechanism for driving the first roller and the heating roller so that a speed of the first roller at the circumferential surface thereof is greater than that of the healing roller. Accordingly, a sheet curled in the fixing device can be straightened with a simple construction.

摘要翻译： 在图像形成装置中使用片材排出装置，该图像形成装置包括固定装置，该定影装置采用热转印辊定影方法，该方法将转印到片材上的调色剂图像进行定影，以将其固定在片材上，同时通过加热旋转片材并按特定的 速度。 该片材排出装置设置有包括第一和第二辊并且布置在定影装置的下游的片材排出器，第一和第二辊的接触点从第一和第二辊的圆周表面的点上的切线朝向加压辊定位 与加热和加压辊的中心连接的直线交叉的加热辊，以及用于驱动第一辊和加热辊的驱动机构，使得第一辊在其圆周表面处的速度大于 愈合辊。 因此，能够以简单的结构使卷曲在定影装置中的片材变直。

公开(公告)号：US5433425A

公开(公告)日：1995-07-18

申请号：US165351

申请日：1993-12-13

申请人： Hiroshi Kubota ,  Kenji Oda ,  Masami Fuchi

发明人： Hiroshi Kubota ,  Kenji Oda ,  Masami Fuchi

IPC分类号： B65H3/52 ,  B65H3/44

CPC分类号： B65H3/5261 ,  B65H2557/35 ,  B65H2601/25

摘要： In a time period from the time point where the forward end of a paper sheet fed from a pair of paper separation rollers reaches a registration roller to the time point where the registration roller is driven, when the load torque exerted on a forward roller is not less than second regulated torque, the transmission of power to the forward roller is released by a torque limiter provided for the forward roller. In this case, therefore, the force of paper feeding produced by the pair of paper separation rollers is regulated. Consequently, a suitable force of paper feeding can be applied to the paper sheet, thereby to make it possible to regulate the paper sheet straight in the direction of paper feeding as well as to prevent the paper sheet from continuing to be fed even if the amount of deflection of the paper sheet is saturated between the pair of paper separation rollers and the registration roller to prevent the paper sheet from being wrinkled.

摘要翻译： 在从一对纸分离辊供给的纸张的前端到达定位辊到达定位辊驱动的时间点的时间段内，当施加在前辊上的负载转矩不是 小于第二调节扭矩，通过为前进辊设置的扭矩限制器释放向前滚筒的动力传递。 因此，在这种情况下，限制了由一对分纸辊产生的纸张供给力。 因此，可以将合适的纸张供给力施加到纸张上，从而可以在纸张供给方向上直接调节纸张，并且即使在纸张的数量 纸张的偏转在一对分纸辊和定位辊之间饱和，以防止纸张起皱。

公开(公告)号：US5292115A

公开(公告)日：1994-03-08

申请号：US943471

申请日：1992-09-11

申请人： Makoto Egi ,  Masao Otsuka ,  Morishita ,  Masanobu Maeshima ,  Junya Sasabe ,  Kazushiro Taguchi ,  Hiroshi Kubota ,  Kenji Oda ,  Masami Fuchi

发明人： Makoto Egi ,  Masao Otsuka ,  Morishita ,  Masanobu Maeshima ,  Junya Sasabe ,  Kazushiro Taguchi ,  Hiroshi Kubota ,  Kenji Oda ,  Masami Fuchi

IPC分类号： B65H3/52 ,  B65H3/46

CPC分类号： B65H3/5261 ,  B65H2557/35 ,  B65H2601/25

摘要： In a time period from the time point where the forward end of a paper sheet fed from a pair of paper separation rollers reaches a registration roller to the time point where the registration roller is driven, when the load torque exerted on a forward roller is not less than second regulated torque, the transmission of power to the forward roller is released by a torque limiter provided for the forward roller. In this case, therefore, the force of paper feeding produced by the pair of paper separation rollers is regulated. Consequently, a suitable force of paper feeding can be applied to the paper sheet, thereby to make it possible to regulate the paper sheet straight in the direction of paper feeding as well as to prevent the paper sheet from continuing to be fed even if the amount of deflection of the paper sheet is saturated between the pair of paper separation rollers and the registration roller to prevent the paper sheet from being wrinkled.

摘要翻译： 在从一对纸分离辊供给的纸张的前端到达定位辊到达定位辊驱动的时间点的时间段内，当施加在前辊上的负载转矩不是 小于第二调节扭矩，通过为前进辊设置的扭矩限制器释放向前滚筒的动力传递。 因此，在这种情况下，限制了由一对分纸辊产生的纸张供给力。 因此，可以将合适的纸张供给力施加到纸张上，从而可以在纸张供给方向上直接调节纸张，并且即使在纸张的数量 纸张的偏转在一对分纸辊和定位辊之间饱和，以防止纸张起皱。

公开(公告)号：US5253856A

公开(公告)日：1993-10-19

申请号：US889013

申请日：1992-05-26

申请人： Masami Fuchi ,  Hiroshi Kubota ,  Kenji Oda

发明人： Masami Fuchi ,  Hiroshi Kubota ,  Kenji Oda

IPC分类号： B65H3/06 ,  G03G15/00 ,  B65H3/44

CPC分类号： G03G15/6502 ,  B65H3/06 ,  G03G15/6564 ,  B65H2403/72 ,  G03G2215/00371 ,  G03G2215/00383 ,  G03G2215/00405 ,  G03G2215/00548 ,  G03G2215/00924

摘要： A sheet transport device is provided with a plurality of sheet transport paths arranged in parallel to one another and a sheet transport assembly for transporting a sheet along the sheet transport path. The transport assembly includes a drive shaft extending normal to the plurality of sheet transport paths, a roller member mounted on the drive shaft in a position corresponding to each of the plurality of sheet transport paths, and a transmission mechanism provided between the drive shaft and roller member for transmitting the rotational force of the drive shaft rotating in a sheet transport direction to the roller member and for shutting off transmission of the rotational force of the roller member rotating in the sheet transport direction to the drive shaft. Accordingly, the misalignment of sheets to be transported simultaneously can be readily corrected. In addition, even if one of the simultaneously transported sheets gets jammed, the jammed sheet can be smoothly removed without affecting transport of the other sheets.

摘要翻译： 片材输送装置设置有彼此平行布置的多个片材输送路径和用于沿片材输送路径输送片材的片材输送组件。 传送组件包括垂直于多个片材传送路径延伸的驱动轴，安装在驱动轴上的对应于多个片材传送路径中的每一个的位置的辊构件，以及设置在驱动轴和辊之间的传动机构 用于将沿着纸张传送方向旋转的驱动轴的旋转力传递到辊构件并且用于切断沿着纸张传送方向旋转的辊构件的旋转力传递到驱动轴的构件。 因此，可以容易地校正要同时输送的片材的未对准。 此外，即使同时传送的纸张中的一个被卡住，也可以顺利地移除卡住的纸张，而不会影响其他纸张的传送。

公开(公告)号：US5481348A

公开(公告)日：1996-01-02

申请号：US130222

申请日：1993-10-01

申请人： Takashi Mihara ,  Kazumi Shirasaka ,  Kenji Oda ,  Akinobu Nakahata ,  Masahiro Shinohara ,  Wataru Sasaki

发明人： Takashi Mihara ,  Kazumi Shirasaka ,  Kenji Oda ,  Akinobu Nakahata ,  Masahiro Shinohara ,  Wataru Sasaki

IPC分类号： B65H29/52 ,  B65H31/00 ,  G03G15/00 ,  G03G15/20

CPC分类号： G03G15/6573 ,  G03G15/2053 ,  G03G15/6594 ,  G03G2215/00514 ,  G03G2215/2061

摘要： A discharge device is usable for an image forming apparatus including a fixing portion having a heating roller in the shape of a hyperboloid for fixing a toner image formed on an envelope having a turned-up portion, and a stacking portion for stacking envelopes. The discharge device provided with a discharge roller system provided between the fixing portion and the stacking portion to discharge the envelope to the stacking portion has a upright portion provided near the discharge roller system below the transport path of the envelope to prevent the turned-up portion of the envelope from warping downward. This discharge device prevents a discharging envelope from coming into contact or colliding with the uppermost one of a stack of already discharged envelopes on the stacking portion, and enables the envelopes to be discharged suitably and to be stacked orderly on the stacking portion and increases an amount of envelopes stacked on the stacking portion.

摘要翻译： 放电装置可用于包括具有双曲面形状的加热辊的固定部分的固定部分，用于固定形成在具有折弯部分的封套上的调色剂图像，以及堆叠部分用于堆叠信封。 具有设置在固定部和堆叠部之间以将外壳排出到堆叠部分的排出辊系统的排出装置具有设置在排出辊系统附近的直立部分，该排出辊系统位于外壳的输送路径的下方，以防止折回部分 信封从翘曲向下。 这种放电装置防止放电封套与堆叠部分上的已经放电的信封的堆叠中的最上面的一个接触或碰撞，并且使得信封能够被适当地排出并且被有序地堆叠在堆叠部分上并增加量 堆叠在堆叠部分上的信封。