Canon Kabushiki Kaisha

Koji Fujinaka

Masaaki Sato

Akitoshi Toyota

Kenichi Iida

Yuichiro Inaba

Susumu Nittani

Tomio Noguchi

Tsuyoshi Ogawa

Takao Sameshima

Hiroshi Takarada

Kenji Matsuzaka

Koji Wada

Naoki Hayashi

Keisuke Fujita

Masaaki Takeuchi

Masatoshi Takiguchi

Fuyuto Yamashita

An image forming apparatus includes a developer container to and from which a replenishment container is attachable and detachable and which includes an accommodating portion that accommodates developer and a replenishment port, an agitation member, an opening/closing member configured to be movable between a closed position and an open position, a drive source for driving the agitation member, and a control portion configured to control the drive source. The apparatus is configured such that image formation is not possible when the opening/closing member is at the open position, and the agitation member is capable of driving in a case where the opening/closing member is at the open position.

Image forming apparatus

An image forming apparatus includes a developer container having an accommodating portion to accommodate developer, and a replenishment port for replenishing the accommodating portion with developer from an attachable replenishment container. A transfer portion transfers the developer image on an image bearing member onto a recording material, a supporting tray supports the recording material, and a discharge portion discharges the recording material on the supporting surface. The supporting tray has an opening portion opening with the replenishment port being exposed through the supporting surface, wherein an opening/closing member is movable between a closed position where it covers the replenishment port and serves as a part of the supporting surface and an open position where the replenishment port is exposed. Movement of the opening/closing member to the closed position is hindered by the replenishment container in a state it is attached to the developer container.

Image forming apparatus having toner replenishment

An apparatus includes a developer container to and from which a replenishment container is attachable and detachable and which includes an accommodating portion and a replenishment port, a transfer portion configured to transfer a developer image on an image bearing member onto a recording material, a supporting tray including a supporting surface configured to support the recording material thereon, and a discharge portion configured to discharge the recording material, onto which the developer image has been transferred, on the supporting surface, wherein the supporting surface has an opening portion opening such that the replenishment port is exposed through the supporting surface, and wherein an opening/closing member configured to be movable between a closed position where the opening/closing member covers the replenishment port and serves as a part of the supporting surface and an open position where the replenishment port is exposed is provided.

An image forming apparatus includes a developer container to accommodate developer containing toner, a developer bearing member to rotate while bearing the developer accommodated in the developer container and develop the electrostatic latent image borne on an image bearing member into a developer image, a detection portion to output remainder amount information corresponding to an amount of the developer accommodated in the developer container, and a notification portion capable of notifying a first state indicating that a remainder amount of the developer accommodated in the developer container is a first amount or more and a second state indicating that the remainder amount of the developer accommodated in the developer container is less than the first amount. The notification portion notifies one of a plurality of states including the first state and the second state on a basis of the remainder amount information output from the detection portion.

Image forming apparatus and image forming system

The process unit is configured to be rotatable relative to the frame about a rotation axis extending in a rotation axis direction of the photosensitive drum between a first position at which the photosensitive drum comes into contact with the transfer member and forms the transfer nip portion and a second position at which the photosensitive drum is separated from the transfer member, and a direction in which the process unit rotates from the first position to the second position is a direction in which the replenishing port of the process unit moves away when the process unit is viewed from the front surface side.

An image forming apparatus includes a developer container to and from which the replenishment container is attachable and detachable and which includes an accommodating portion that accommodates developer and a replenishment port, an agitation member, an opening/closing member configured to be movable between a closed position and an open position, a drive source for driving the agitation member, and a control portion configured to control the drive source. The apparatus is configured such that image formation is not possible when the opening/closing member is at the open position, and the agitation member is capable of driving in a case where the opening/closing member is at the open position.

An apparatus includes an image bearing member, a developer container having a replenishment port, a developer bearing member, a detection portion configured to output remainder amount information corresponding to the amount of developer accommodated in the developer container, a notification portion capable of notifying a first state, and a second state, and a control portion. The maximum amount of the developer that the developer container is capable of accommodating is larger than a value obtained by adding the amount of the developer accommodated in a replenishment container containing the developer for replenishment to the first amount, and wherein notification of the second state corresponds to notification of a case where the amount of the developer remaining in the developer container is larger than a case where the amount of the developer remaining in the developer container is the smallest.

The present invention relates to a fixing apparatus including a tubular film, a heater provided at an inside of the film, a protection element provided at the inside of the film, and at least one conductive member provided at the inside of the film. The protection element includes two terminals and a switch that turns off to shut off power to the heater when the heater abnormally generates heat. A first end of the conductive member is electrically connected to one of the terminals of the protection element. The conductive member is not coated with an insulator, and a second end of the conductive member projects out of the film so that the cost of the fixing apparatus is reduced.

Mounted fixing apparatus for fixing an image formed on a recording medium

A feeding apparatus includes a sheet supporting member, a feeding member, and a lift unit. The lift unit lifts and lowers the sheet supporting member to abut a sheet stacked on the sheet supporting member against the feeding member. The lift unit includes an urging member that biases the sheet supporting member towards the feeding member, a moving member that moves in a first direction different from a sheet supporting member lifting direction, and a contact member in contact with the moving member. The contact member includes a curved cam surface in a region that comes in contact with the moving member. A contact state between the moving member and the contact member is changed by moving the moving member in the first direction and the curved cam surface. Regarding changing the contact state, the sheet supporting member can be moved to a feed position and a retracted position.

Sheet feeding apparatus and image forming apparatus

An object is to provide an image forming apparatus capable of switching, with a simple configuration, the positional relation between a supporting member and a feeding member and the positional relation between a developing member and a photosensitive member. A separation camrotated by the driving force of a motor M and a slidermoving in accordance with the rotation of the separation camare configured to switch the positional relation between a lifting plateand a feeding rollerand the positional relation between a developing rollerand a photosensitive drum

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Chofu, Japan

Koji Fujinaka