公开(公告)号：US20160161889A1

公开(公告)日：2016-06-09

申请号：US15046185

申请日：2016-02-17

Applicant: Shinya TANAKA ,  Naomi SUGIMOTO ,  Haruo llMURA ,  Shinji AOKI ,  Yasuhiko OGINO ,  Kazuchika SAEKI ,  Keigo NAKAMURA

Inventor： Shinya TANAKA ,  Naomi SUGIMOTO ,  Haruo llMURA ,  Shinji AOKI ,  Yasuhiko OGINO ,  Kazuchika SAEKI ,  Keigo NAKAMURA

IPC: G03G15/16

CPC classification number: G03G15/1675 ,  G03G15/0131 ,  G03G15/0189 ,  G03G15/1665 ,  G03G15/80

Abstract: An image forming apparatus includes a transfer member configured to abut against an image carrier for carrying a toner image to form a transfer nip; and a power supply configured to output a bias voltage for transferring the toner image on the image carrier onto a recording medium nipped in the transfer nip. The bias voltage includes a first voltage for transferring the toner image from the image carrier onto the recording medium in a transfer direction and a second voltage having an opposite polarity of the first voltage, the first and the second voltages being alternately output. A time-averaged value of the bias voltage is set to a polarity in the transfer direction and is set in the transfer direction side with respect to a median between a maximum and a minimum of the bias voltage.

Abstract translation: 图像形成装置包括：传送构件，被配置为抵靠用于承载调色剂图像的图像载体以形成转印夹持部; 以及电源，被配置为输出用于将图像载体上的调色剂图像转印到夹在转印夹持部中的记录介质上的偏置电压。 的偏置电压包括用于将调色剂图像从图像载体转印到在转印方向上的记录介质和具有第一电压的极性相反的第二电压，所述第一和第二电压为交替输出第一电压。 偏置电压的时间平均值设置为在传送方向上的极性，并且相对于最大和最小的偏置电压之间的中值设定在传送方向侧。

公开(公告)号：US20080118281A1

公开(公告)日：2008-05-22

申请号：US11933693

申请日：2007-11-01

Applicant: Kazuchika SAEKI ,  Toshitaka Yamaguchi ,  Masaharu Furuya ,  Takahiro Nakayama ,  Takuya Sekine

Inventor： Kazuchika SAEKI ,  Toshitaka Yamaguchi ,  Masaharu Furuya ,  Takahiro Nakayama ,  Takuya Sekine

IPC: B41J2/16

CPC classification number: B41J2/0057

Abstract: An image forming apparatus includes an intermediate transfer belt, a photosensitive belt, a primary transfer roller, a secondary-transfer opposing roller, and a secondary transfer roller, The photosensitive belt comes into contact with a surface of the intermediate transfer belt to form a primary transfer nip. The secondary-transfer opposing roller comes into contact with the surface of the intermediate transfer roller to form a secondary transfer nip. The closest distance between a surface of the photosensitive belt and that of the primary transfer roller is greater than the thickness of the intermediate transfer belt. A toner image on the intermediate transfer belt is transferred onto a recording sheet at the secondary transfer nip while a transfer bias is applied to the secondary transfer roller.

Abstract translation: 图像形成装置包括中间转印带，感光带，一次转印辊，二次转印相对辊和二次转印辊。感光带与中间转印带的表面接触以形成初级 转印辊隙。 二次转印相对辊与中间转印辊的表面接触以形成二次转印辊隙。 感光带的表面与一次转印辊的表面之间的最近距离大于中间转印带的厚度。 中间转印带上的调色剂图像在二次转印辊隙处转印到记录片材上，同时将转印偏压施加到二次转印辊上。

公开(公告)号：US20130177341A1

公开(公告)日：2013-07-11

申请号：US13781056

申请日：2013-02-28

Applicant: Kazuchika SAEKI ,  Mitsuru TAKAHASHI ,  Kazuosa KUMA ,  Takeshi FUKAO ,  Tsutomu KATOH ,  Yoshiharu KISHI

Inventor： Kazuchika SAEKI ,  Mitsuru TAKAHASHI ,  Kazuosa KUMA ,  Takeshi FUKAO ,  Tsutomu KATOH ,  Yoshiharu KISHI

IPC: G03G15/00

CPC classification number: G03G15/657 ,  G03G2215/00413

Abstract: An image forming apparatus includes an image carrier, a transferor, a fixing unit, and a guide. The image carrier carries a toner image. The transferor opposes the image carrier to form a transfer nip and transfers the toner image on the image carrier onto a recording medium at the transfer nip. The fixing unit fixes the toner image on the recording medium. The guide guides the recording medium bearing the toner image from the transferor toward the fixing unit and includes a surface portion directly contacting the recording medium. The surface portion includes a material for charging the recording medium to have a polarity opposite to the polarity of a toner forming the toner image.

Abstract translation: 图像形成装置包括图像载体，转印器，定影单元和引导件。 图像载体携带调色剂图像。 转印器与图像载体相对以形成转印压区，并将转印辊上的图像载体上的调色剂图像转印到记录介质上。 定影单元将调色剂图像固定在记录介质上。 引导件将从转印器承载调色剂图像的记录介质引向定影单元，并且包括直接接触记录介质的表面部分。 表面部分包括用于将记录介质充电以具有与形成调色剂图像的调色剂的极性相反的极性的材料。

公开(公告)号：US20110103862A1

公开(公告)日：2011-05-05

申请号：US12986732

申请日：2011-01-07

Applicant: Kazuchika SAEKI ,  Mitsuru Takahashi ,  Kazuosa Kuma ,  Takeshi Fukao ,  Tsutomu Kato ,  Yoshiharu Kishi

Inventor： Kazuchika SAEKI ,  Mitsuru Takahashi ,  Kazuosa Kuma ,  Takeshi Fukao ,  Tsutomu Kato ,  Yoshiharu Kishi

IPC: G03G15/00

CPC classification number: G03G15/657 ,  G03G2215/00413

Abstract: An image forming apparatus includes an image carrier, a transferor, a fixing unit, and a guide. The image carrier carries a toner image. The transferor opposes the image carrier to form a transfer nip and transfers the toner image on the image carrier onto a recording medium at the transfer nip. The fixing unit fixes the toner image on the recording medium. The guide guides the recording medium bearing the toner image from the transferor toward the fixing unit and includes a surface portion directly contacting the recording medium. The surface portion includes a material for charging the recording medium to have a polarity opposite to the polarity of a toner forming the toner image.

Abstract translation: 图像形成装置包括图像载体，转印器，定影单元和引导件。 图像载体携带调色剂图像。 转印器与图像载体相对以形成转印压区，并将转印辊上的图像载体上的调色剂图像转印到记录介质上。 定影单元将调色剂图像固定在记录介质上。 引导件将从转印器承载调色剂图像的记录介质引向定影单元，并且包括直接接触记录介质的表面部分。 表面部分包括用于将记录介质充电以具有与形成调色剂图像的调色剂的极性相反的极性的材料。

公开(公告)号：US20080112734A1

公开(公告)日：2008-05-15

申请号：US11934981

申请日：2007-11-05

Applicant: Masaharu FURUYA ,  Kazuchika SAEKI ,  Toshitaka YAMAGUCHI ,  Takahiro NAKAYAMA ,  Takuya SEKINE

Inventor： Masaharu FURUYA ,  Kazuchika SAEKI ,  Toshitaka YAMAGUCHI ,  Takahiro NAKAYAMA ,  Takuya SEKINE

IPC: G03G15/08

CPC classification number: G03G15/161 ,  G03G15/0136 ,  G03G15/0194 ,  G03G2215/0132

Abstract: A belt member faces a plurality of carrying bodies that respectively carry toner images or developers. A plurality of facing members respectively faces the carrying bodies via the belt member. A detaching unit brings at least one of the facing members to face a corresponding carrying body and detaches other facing members from other carrying bodies. A contacting member contacts the belt member to detach the belt member from the other carrying bodies when the detaching unit detaches the other facing members from the other carrying bodies.

Abstract translation: 带构件面向分别承载调色剂图像或显影剂的多个携带体。 多个面对构件分别经由带构件面对承载体。 分离单元使至少一个面对构件面对相应的承载体，并将其它面对构件与其它承载体分离。 当分离单元将另一个面对构件与其它承载体分离时，接触构件接触带构件以将带构件从其它承载体分离。

公开(公告)号：US20070014583A1

公开(公告)日：2007-01-18

申请号：US11279193

申请日：2006-04-10

Applicant: Kazuchika SAEKI

Inventor： Kazuchika SAEKI

IPC: G03G15/00 ,  G03G15/01

CPC classification number: G03G15/5058 ,  G03G15/0131 ,  G03G15/1615 ,  G03G15/162 ,  G03G2215/00059 ,  G03G2215/0119 ,  G03G2215/0161

Abstract: An image forming apparatus includes an intermediate transfer belt that moves while keeping contact with a photosensitive element at a transfer position, a control pattern forming unit that forms a control pattern on the intermediate transfer belt, a control pattern detecting unit that detects the control pattern; a deformation preventing unit arranged on a rear side of the moving member at a position facing the control pattern detecting unit; and tension applying members that applies tension to the intermediate transfer belt to tautly support the intermediate transfer belt. The deformation preventing unit and one of the tension applying members being a bias impressing unit that impresses a bias are arranged in close proximity to each other, and a surface of the deformation preventing unit is formed with an insulating material.

Abstract translation: 图像形成装置包括：中间转印带，其在与转印位置处的感光元件保持接触的同时移动;控制图案形成单元，其在中间转印带上形成控制图案;控制图案检测单元，其检测控制图案; 变形防止单元，其布置在所述移动构件的与所述控制图案检测单元相对的位置的后侧; 以及向中间转印带施加张力的张力施加构件，以绷紧地支撑中间转印带。 变形防止单元和作为施加偏压的偏压施加单元的张力施加构件之一被布置成彼此靠近，并且变形防止单元的表面形成有绝缘材料。