公开(公告)号：US10761468B2

公开(公告)日：2020-09-01

申请号：US16217665

申请日：2018-12-12

申请人： Masato Tanaka ,  Keiji Kunimi

发明人： Masato Tanaka ,  Keiji Kunimi

IPC分类号： G03G15/01 ,  G03G15/00 ,  G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G21/04

摘要： An image forming apparatus is provided. The image forming apparatus includes an image forming unit containing a special recording material and circuitry configured to control the image forming unit to form a hardly visible image on a recording medium with the special recording material. The hardly visible image is formed of a halftone dot image comprising isolated dots in a number smaller than that of isolated dots forming a visible image having the same image area ratio as the hardly visible image.

公开(公告)号：US10732542B2

公开(公告)日：2020-08-04

申请号：US16232448

申请日：2018-12-26

申请人： Masato Tanaka ,  Keiji Kunimi ,  Masanori Kawasumi

发明人： Masato Tanaka ,  Keiji Kunimi ,  Masanori Kawasumi

IPC分类号： G03G15/08 ,  G03G9/087 ,  G03G9/09 ,  G03G21/16 ,  G03G15/00 ,  G03G21/04

摘要： An image forming apparatus including an image forming unit, a unit holder, and circuitry is provided. The image forming unit includes a color toner unit, a replaceable black toner unit, and a replaceable special toner unit that form a color toner image, a black toner image, and a special toner image, respectively. The unit holder selectively and detachably holds the replaceable black toner unit or the replaceable special toner unit. The circuitry controls the image forming unit to perform: a normal operation, when the unit holder holds the replaceable black toner unit, that forms a color-black image; a special operation, when the unit holder holds the replaceable special toner unit, that forms a color-special image; and a toner amount increase control that increases an amount of the color toner per unit area in the color toner image in the special operation than that in the normal operation.

公开(公告)号：US20200167454A1

公开(公告)日：2020-05-28

申请号：US16689254

申请日：2019-11-20

申请人： Yuudai TANAKA ,  Keiji Kunimi

发明人： Yuudai TANAKA ,  Keiji Kunimi

IPC分类号： G06F21/32 ,  G06F21/84 ,  G06K9/00 ,  H04N1/23 ,  H04N1/44

摘要： An image forming apparatus includes circuitry to: receive an instruction for copying an image of a document from a user; acquire biometric information of the user; and embed user information in the image, the user information including one of the biometric information of the user and information for specifying the biometric information of the user; and an image forming device to print the image having the user information embedded, on a recording medium to output a copied image.

公开(公告)号：US20190196363A1

公开(公告)日：2019-06-27

申请号：US16232448

申请日：2018-12-26

申请人： Masato TANAKA ,  Keiji Kunimi ,  Masanori Kawasumi

发明人： Masato TANAKA ,  Keiji Kunimi ,  Masanori Kawasumi

IPC分类号： G03G15/08 ,  G03G21/16 ,  G03G9/09 ,  G03G9/087

摘要： An image forming apparatus including an image forming unit, a unit holder, and circuitry is provided. The image forming unit includes a color toner unit, a replaceable black toner unit, and a replaceable special toner unit that form a color toner image, a black toner image, and a special toner image, respectively. The unit holder selectively and detachably holds the replaceable black toner unit or the replaceable special toner unit. The circuitry controls the image forming unit to perform: a normal operation, when the unit holder holds the replaceable black toner unit, that forms a color-black image; a special operation, when the unit holder holds the replaceable special toner unit, that forms a color-special image; and a toner amount increase control that increases an amount of the color toner per unit area in the color toner image in the special operation than that in the normal operation.

公开(公告)号：US08295717B2

公开(公告)日：2012-10-23

申请号：US12582474

申请日：2009-10-20

申请人： Rumi Miyazaki ,  Atsushi Takehara ,  Keiji Kunimi

发明人： Rumi Miyazaki ,  Atsushi Takehara ,  Keiji Kunimi

IPC分类号： G03G15/08 ,  G03G15/00

CPC分类号： G03G15/1605 ,  G03G15/0856 ,  G03G15/0862 ,  G03G15/161 ,  G03G15/5062 ,  G03G2215/0602

摘要： An image forming apparatus includes an image carrier, a toner-image forming unit, a photosensor, an information obtaining unit, and a toner-amount calculating unit. The toner-image forming unit forms a toner image on the image carrier with toner. The photosensor detects a toner area where the toner is sticking to the image carrier. The information obtaining unit obtains particle-size-change information about how particle size distribution of the toner changes over time. The toner-amount calculating unit calculates a toner amount of the toner image based on the toner area and the particle-size-change information.

摘要翻译： 图像形成装置包括图像载体，调色剂图像形成单元，光电传感器，信息获取单元和调色剂量计算单元。 调色剂图像形成单元用调色剂在图像载体上形成调色剂图像。 光电传感器检测调色剂粘附到图像载体上的调色剂区域。 信息获取单元获得关于调色剂的粒度分布如何随时间变化的粒度变化信息。 调色剂量计算单元基于调色剂面积和粒度变化信息计算调色剂图像的调色剂量。