Fuji Xerox Co., Ltd.

Hiroaki Yagi

Hirofumi Goto

Akihiro Ouchi

Masakazu Shirai

Hibiki Sasaki

Kenji Suzuki

Yoshiyuki Takashima

Koji Deguchi

Yoshihisa Nakao

Sota Hara

Ayaka Miyoshi

Koichi Sato

Masaaki Tokunaga

Arichika Tanaka

Yoshihiro Enomoto

Kaoru Matsushita

Kazuyuki Yagata

Yuichi Fujisawa

Kentaro Iwamoto

Shinichi Kawamata

Kazumi Yamanaka

Masaru Noguchi

Yuta Hiramine

A transfer unit includes a transfer target member, a first transfer device, and a holding member. The transfer target member has an image region to which an image is transferred and a non-image region to which the image is not transferred and which exists along an edge of the transfer target member. The transfer target member is transported in a path passing through a contact position where the transfer target member is brought into contact with an image holding body, which has a surface on which the image is held, so as to allow the image to be transferred to the transfer target member. The first transfer device transfers the image from the image holding body to the transfer target member. The holding member is brought into contact with the non-image region so as to hold the transfer target member without contact with the image region.

Transfer unit and image forming apparatus including a belt-shaped transfer target member

A tension applying device that applies tension to a strip-shaped body supported on a support member, the tension applying device is provided with a moving body that supports the support member, a holding body movably supporting the moving body in a direction in which the tension is applied to the strip-shaped body, a tension spring exerting the tension to the strip-shaped body, a first spring support portion disposed in the holding body and supporting one end of the tension spring, a second spring support portion disposed in the moving body in order to support the other end of the tension spring and disposed on an upstream side from the first spring support portion in the direction in which the tension is applied, and an opening formed in the holding body and in a position corresponding to the second spring support portion.

Tension applying device, method and image forming apparatus

Provided is a transfer device including a primary transfer roller that selectively takes a contact position where an intermediate transfer belt is brought into contact with an image holding member, and a separation position where the intermediate transfer belt is separated from the image holding member, a tension applying roller on which the intermediate transfer belt is wound thereon together with a driving roller and which is urged in a direction receding from the driving roller, and a relaxing member that is attached to a shaft portion of the tension applying roller, is urged by an urging unit in a direction approaching the driving roller, and relaxes an urging force of the tension applying roller in a direction receding from the driving roller when the primary transfer roller is at the separation position.

Transfer device and image forming apparatus

A transfer device includes a first support member that supports a wound member, an endless transferred body being wound around the wound member; a second support member that supports a transfer member, the transfer member and the wound member pinching the transferred body and a recording medium, the transfer member causing a developer image on the transferred body to be transferred onto the recording medium; a coupling portion that couples the second support member to the first support member so that an angle of the second support member is changeable relative to the first support member; and an urging portion that is provided at the first support member and urges the second support member in a direction in which the transfer member presses the wound member.

Transfer device and image forming apparatus for increasing relative positional accuracy between a transfer member and a wound member

An intermediate transfer device includes an intermediate transfer member, intermediate transfer member support members, and two frame members each including first and second positioning members each having a positioning portion. At least one of the frame members satisfies a condition L:L=2.85:x 0&#x2266;x&#x2266;1, where Lis the length of a line segment connecting an intersection point to the positioning portion of one of the positioning members on a side opposite to a side toward which a line of action of a force applied by a second-transfer unit is inclined and Lis the length of a line segment connecting the intersection point to the positioning portion of the other of the positioning members on the side toward which the line of action is inclined, the intersection point being an intersection of the line of action and a line segment connecting the positioning portions.

Intermediate transfer device and image forming apparatus including frame members

An image forming apparatus includes an image forming unit that forms an image to be formed on a recording medium. The image formed by the image forming unit has a size larger than a size of the recording medium that is transported, the image forming unit causing the image to adhere to the entire area of the recording medium. A width of the image in a direction substantially orthogonal to a transporting direction of the recording medium increases from a front end toward a rear end of the recording medium in the transporting direction of the recording medium.

Image forming apparatus

A developer-conveying apparatus is provided, the developer-conveying apparatus including: a conveying member that has a rotational axis rotatably set in a container and a blade formed around the rotational axis, the conveying member conveying a developer along the rotational axis by rotation; and a static eliminating member set in the container and eliminating static electricity of the developer in the container by being brought into contact with the developer.

Developer conveying apparatus and image forming apparatus

A powder container includes a housing including a container chamber, a rotation member extending in an axial direction, and a sealing member. The housing includes a first wall portion having a first hole into which an end portion of the rotation member is inserted. The rotation member includes a second wall facing a part of the first wall portion around the first hole with a distance therebetween. The sealing member has a second hole through which the rotation member extends, is interposed between the part of the first wall portion around the first hole and the second wall portion, and includes a foam member that is contractible and a pair of sheet members respectively contacting the part of the first wall portion around the first hole and the second wall portion and having a friction coefficient lower than the foam member.

Powder container, cleaning device, and image forming apparatus including sealing member

Growing community of inventors

Kanagawa, Japan

Hiroaki Yagi