Fuji Xerox Co., Ltd.

Akiko Kimura

Tomoya Ichikawa

Yusuke Kitagawa

Sadao Okano

Yuzo Ichikawa

Yasuo Takayama

Hirohisa Hoshino

Takahiro Shinkawa

Yasushige Nakamura

Masaaki Tokunaga

Shigeru Fukuda

Tsuneo Fukuzawa

Toshiyuki Matsui

Kanji Watanabe

Yukio Hara

Shinichi Yaoi

Satoshi Honobe

Shinichi Ishigame

A charging device includes a first cleaning member that cleans a surface of a charging wire by moving along the wire while being in contact with the wire at a first side; and a second cleaning member that cleans the surface of the wire by moving while being in contact with the wire at a second side, and moving relative to the first cleaning member in a crossing direction that crosses a wire length direction.

Charging device including first and second cleaning members for cleaning a charging wire

A charging device includes an electrode, a cleaning member that moves along the electrode and cleans the electrode, a rotating member that is disposed along the electrode, includes a spiral protruding portion on an outer circumferential surface thereof, and circumferentially rotates, and a movable member to which the cleaning member is attached. The movable member includes a first through hole through which the rotating member passes, a first pressed portion that is provided on an inner circumferential surface of the first through hole and pressed by the protruding portion of the rotating member, and a second pressed portion that is disposed at a different position from a position of the first pressed portion in an axial direction of the rotating member and that is disposed such that one or more turns of the protruding portion are positioned between the second pressed portion and the first pressed portion.

Charging device and image forming apparatus including movable member to which cleaning member is attached

A charging device includes a first cleaning member, a first electrode, a second cleaning member, a second electrode, and a movable body. The first cleaning member moves in one direction. The first electrode is cleaned by the first cleaning member moving in the one direction. The second cleaning member moves in the one direction together with the first cleaning member and moves so that a downstream end portion thereof, which is located downstream in the one direction, serves as a leading portion and an upstream end portion thereof comes after the downstream end portion. The second electrode includes a first region and a second region. The first region is cleaned by the second cleaning member moving in the one direction. The second region is located downstream in comparison with the first region in the one direction.

Charging device including cleaning member and image forming apparatus

A charging device includes: an electrode; a cleaning member that cleans the electrode; a moving body that moves along the electrode, the cleaning member that is attached to the moving body; and a rotation member that is disposed along the electrode and that includes a spiral protrusion on an outer circumferential surface thereof to move the moving body, the rotation member that is rotated in a circumferential direction. A plurality of kinds of pitch intervals of the protrusion are provided on at least a central portion of the rotation member in a longitudinal direction.

Charging device and image forming apparatus having a rotation member with a spiral protrusion

A cleaner includes a cleaning member that includes a tip portion that comes into contact with an image carrier that carries an image, and that removes and cleans developer adhered to the image carrier, a cleaning container which stores the developer removed by the cleaning member, a cleaning support that includes a cleaning supporting portion that supports a proximal end of the cleaning member, and a damped portion, a damping body that includes a first and a second damping bodies arranged in contact with the damped portion and that regulates vibration of the cleaning support, and a fixing member of the damping body that includes a first fixing portion arranged to face the damped portion with the first damping body, and a second fixing portion arranged to face the damped portion with the second damping body, and that is supported by the cleaning container.

Cleaning apparatus having damping unit to regulate vibration

An image forming device has: an image forming body on which an image is formed in a state in which the image forming body is charged; a charging device having plural discharge portions, and charging the image forming body by discharging of plural discharge portions; and a control section that, when forming the image on the image forming body, operates the plural discharge portions, and when not forming the image on the image forming body, switches between a state of operating some of the plural discharge portions and decreasing output of or stopping the discharge portions other than the some discharge portions, and a state of operating some other of the plural discharge portions and decreasing output of or stopping the discharge portions other than the some other discharge portions.

Image forming device comprising charging device having plural discharge portions

A cleaning unit includes: a cleaning member that cleans the surface of the image carrier; a cleaning container that stores developer removed by the cleaning member; a cleaning support that is formed by bending a plate and includes a cleaning-supporting portion supporting the other end portion of the cleaning member and a supported portion angled with respect to the cleaning-supporting portion by bending; a supporting-portion-of-support that includes a facing portion facing the supported portion, is provided at the cleaning container, and supports the cleaning support; a damping member that is disposed between the supported portion and the facing portion, is formed so as to be elastically deformable, and regulates vibration of the cleaning member; and a securing member that secures the cleaning support to the supporting-portion-of-support at a position adjacent to the damping member.

Cleaning unit, image carrier unit, and image forming apparatus

A discharger includes a discharger main body that is adapted to be attached to and detached from a holding member of an image forming apparatus, a first electrode member that is formed of a wire rod, a second electrode member, a voltage for discharge being applied between the first and second electrode members, an electrode cleaning member that cleans the first electrode member, a detected portion that is integrally disposed to the electrode cleaning member, a detecting member that detects the detected portion while the electrode cleaning member is in a predetermined reference position, a cleaning member conveyer that conveys the electrode cleaning member in both directions which toward and away from the reference position, and a movement control unit that controls a movement of the cleaning member conveyer by the conveyer.

Discharger and image forming apparatus having an electrode cleaning detection member

A maintenance system includes a maintenance device and a control device that controls the operation of the maintenance device. The control device is configured to activate the maintenance device automatically when a numerical value associated with the operation of a maintenance target device reaches a predetermined threshold value and to activate the maintenance device when it receives an instruction from a user. When the control device is instructed to activate the maintenance device by an instruction from the user, the control device changes the preset threshold value such that the operation interval of the maintenance device becomes smaller.

Maintenance system, cleaning system, and image forming apparatus

A cleaner includes a cleaning member having a distal end in contact with an image carrier so as to remove developer attached to the image carrier, a cleaning container that stores the removed developer, a cleaning support body including a cleaning support portion extending from the distal end to a proximal end of the cleaning member so as to support the proximal end of the cleaning member, a bent portion bent from the cleaning support portion, and a supported portion supported by the cleaning container, a vibration-damping body in contact with an end of the bent portion opposite the cleaning support portion so as to regulate vibration of the cleaning support body, and a vibration-damping-body fixing member supported by the cleaning container and having a clamp portion that clamps the vibration-damping body between the vibration-damping-body fixing member and the end of the bent portion.

Cleaner and image forming apparatus

There are disclosed an electrophotographic toner including a compound represented by formula (1) and a compound represented by formula (2).  In Formula (1), R, R, R, and Reach independently represent a hydrogen atom, an alkyl group or an aromatic group, and Xrepresents a molybdate anion or a tungstate anion. In Formula (2), Rand Reach independently represent a hydrogen ion, an ammonium ion, an iminium ion, or a phosphonium ion, and R, R, R, R, R, R, R, and Reach independently represent a hydrogen atom or an alkyl group.

Electrophotographic toner and image forming apparatus

An intermediate transfer material which is disposed between a latent image-carrier and a recording medium and is primary-transferred thereon a toner image formed on the latent image-carrier, wherein the intermediate transfer material is formed by a polyimide resin having dispersed therein an electrically conductive agent and having a glass transition temperature of 245&deg; C. or lower, and an image-forming apparatus using the above-described intermediate transfer material. The intermediate transfer material does not give image defects such as white spots, etc., caused by lowering of resistivity by the influence of a transferring electric field.

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Kanagawa, Japan

Akiko Kimura