公开(公告)号：US5068693A

公开(公告)日：1991-11-26

申请号：US530533

申请日：1990-05-30

申请人： Masanao Nagakura ,  Masato Kawashima

发明人： Masanao Nagakura ,  Masato Kawashima

IPC分类号： G03G15/20 ,  B65H29/20 ,  G03G15/00 ,  G03G15/14

CPC分类号： G03G15/70 ,  G03G15/706

摘要： A mechanical sheet path sensor used in an electrophotographic image forming apparatus for transcribing image onto a cut sheet by using a toner image formed on a rotating photosensitive drum, for sensing a cut sheet passing therethrough and is placed between a peel-off unit for peeling off the cut sheet after image transcription is performed by an image transcribing unit and a fixing unit for fixing the toner image transcribed on the cut sheet so that a distance from the peel-off unit to the sheet path sensor is shorter than a distance measured along the circumference of the drum from the image transcribing unit to a cleaning unit for cleaning the toner left on the drum after the image transcription. The sensor touches only a side zone where the toner image is forbidden to be transcribed, for avoiding the toner image, not fixed, on the cut sheet from damaging.

摘要翻译： 一种用于电子照相图像形成装置中的机械片材路径传感器，用于通过使用形成在旋转的感光鼓上的调色剂图像将图像转印到切割的片材上，用于感测通过其的切割片材，并且放置在剥离单元之间用于剥离 图像转录后的切片由图像转录单元和用于固定转印在切割纸上的调色剂图像的定影单元执行，使得从剥离单元到片材路径传感器的距离短于沿着 滚筒从图像转录单元的周边到清洁单元，用于在图像转录之后清洁留在滚筒上的调色剂。 传感器仅触摸不能转录调色剂图像的侧区，以避免切片上的调色剂图像不固定，从而损坏。

公开(公告)号：US5450178A

公开(公告)日：1995-09-12

申请号：US364419

申请日：1994-12-27

申请人： Masato Kawashima ,  Mamoru Watanabe ,  Masanao Nagakura ,  Hideyuki Nanba

发明人： Masato Kawashima ,  Mamoru Watanabe ,  Masanao Nagakura ,  Hideyuki Nanba

IPC分类号： G03G15/08 ,  G03G15/06

CPC分类号： G03G15/0844 ,  G03G15/0865 ,  G03G15/0877 ,  G03G15/0886

摘要： In an image-forming apparatus, in which an electrostatic latent image on a photoconductive drum is developed by a toner accommodated in a container, a periodical exchange of carrier in a container is necessary. A method thereof includes steps of fitting a cartridge to the container, discharging all of an old mixture of toner and carrier from the container to the lower chamber, transferring fresh carrier from the carrier compartment into the container, and further, transferring fresh toner from the toner compartment into the container until a predetermined initial color density of the mixture is obtained.

摘要翻译： 在其中通过容纳在容器中的调色剂使感光鼓上的静电潜像显影的图像形成装置中，需要在容器中定期更换载体。 其方法包括以下步骤：将容器装配到容器中，将所有的调色剂和载体的旧混合物从容器排放到下腔室，将新鲜的载体从载体室输送到容器中，并且进一步将新鲜调色剂从 将调色剂隔室装入容器中直至获得混合物的预定的初始颜色密度。

公开(公告)号：US5153643A

公开(公告)日：1992-10-06

申请号：US381394

申请日：1989-07-06

申请人： Masanao Nagakura

发明人： Masanao Nagakura

IPC分类号： G03G15/08

CPC分类号： G03G15/0896 ,  G03G15/0882 ,  G03G15/0898

摘要： The present invention relates to a developing unit for developing a latent image on a medium. This developing unit also provides a device for preventing leakage of toner to the cartridge mounting section provided on a unit in order to prevent leakage of toner during pre-mounting transportation of a new developing unit. The leakage preventing device is a cylindrical member having an opening and has the same shape as the toner cartridge for toner supply.

摘要翻译： PCT No.PCT / JP89 / 00131 Sec。 371日期：1989年7月6日 102（e）日期1989年7月6日PCT提交1989年2月9日PCT公布。 公开号WO89 / 07788 日本1989年8月24日。本发明涉及一种用于在介质上显影潜像的显影单元。 该显影单元还提供了一种用于防止调色剂泄漏到设置在单元上的盒安装部分的装置，以便在新显影单元的预安装运输期间防止调色剂泄漏。 泄漏防止装置是具有开口并具有与用于调色剂供应的调色剂盒相同形状的圆柱形构件。

公开(公告)号：US5418604A

公开(公告)日：1995-05-23

申请号：US103789

申请日：1993-08-10

申请人： Masanao Nagakura ,  Hiroji Uchimura ,  Yasunori Hamada ,  Nobuyuki Hayashida ,  Haruhisa Inagaki ,  Yoji Houki

发明人： Masanao Nagakura ,  Hiroji Uchimura ,  Yasunori Hamada ,  Nobuyuki Hayashida ,  Haruhisa Inagaki ,  Yoji Houki

IPC分类号： G03G15/00 ,  G03G21/00

CPC分类号： G03G15/6502 ,  G03G15/6564 ,  G03G15/6567

摘要： Disclosed are an image forming method for checking pickup of a sheet on which an image is to be formed before correcting skewing of the sheet, and an image forming apparatus. This method comprises a first step of permitting a pickup roller to pick up a sheet from a sheet retaining unit and causing the leading edge of the sheet to abut against resist rollers; a second step of permitting a detecting mechanism to detect that the sheet has been picked up by the pickup roller; a third step of rotating the pickup roller by a predetermined amount according to the detection of the detecting mechanism; a fourth step of driving the resist rollers to feed the sheet and driving an image forming mechanism for forming an image on the sheet; and a fifth step of permitting the image forming mechanism to form an image on the fed sheet. The apparatus comprises a sheet retaining unit for retaining sheets; a pickup roller for picking up a sheet from the sheet retaining unit; resist rollers against which the leading edge of the sheet abuts; an image forming mechanism for forming an image on a sheet fed by the resist rollers; a detecting mechanism for detecting that the sheet has been picked up by the pickup roller; and a controller for rotating the pickup roller, then rotating the pickup roller by a predetermined amount according to a sheet detection output of the detecting mechanism, then stopping rotating the pickup roller, and then rotating the resist rollers.

摘要翻译： 公开了一种图像形成方法，用于在校正片材的偏斜之前检查要在其上形成图像的片材的拾取，以及图像形成装置。 该方法包括：第一步骤，允许拾取辊从片材保持单元拾取片材并使片材的前缘抵靠抵抗辊; 第二步骤，允许检测机构检测所述纸张是否被拾取辊拾取; 第三步骤，根据检测机构的检测将拾取辊旋转预定量; 驱动所述阻挡辊进给所述片材并驱动用于在所述片材上形成图像的图像形成机构的第四步骤; 以及允许图像形成机构在供纸片材上形成图像的第五步骤。 该装置包括用于保持片材的片材保持单元; 拾取辊，用于从片材保持单元拾取片材; 阻挡辊，所述片的前缘抵靠着所述抵抗辊; 图像形成机构，用于在由所述阻挡辊供给的片材上形成图像; 检测机构，用于检测纸张是否被拾取辊拾取; 以及用于旋转拾取辊的控制器，然后根据检测机构的纸张检测输出将拾取辊旋转预定量，然后停止旋转拾取辊，然后旋转阻挡辊。