Abstract: An image forming apparatus includes a developer container to and from which a replenishment container is attachable and detachable, the developer container including an accommodating portion, and a supporting portion, wherein the developer container includes a projection portion that is provided at one end portion thereof in the rotation axis direction of the developer bearing member and projects toward the supporting portion more than a center portion of the developer container in a crossing direction crossing the rotation axis direction, the projection portion communicates with the accommodating portion and includes, at a distal end portion thereof, an attachment portion configured such that the replenishment container is attachable thereto in a state of being exposed to the outside of the apparatus, and a replenishment port for replenishing the accommodating portion with developer from the replenishment container is defined in the attachment portion.

Abstract: An image forming apparatus includes a developer container to and from which a replenishment container is attachable and detachable, the developer container including an accommodating portion, and a supporting portion, wherein the developer container includes a projection portion that is provided at one end portion thereof in the rotation axis direction of the developer bearing member and projects toward the supporting portion more than a center portion of the developer container in a crossing direction crossing the rotation axis direction, the projection portion communicates with the accommodating portion and includes, at a distal end portion thereof, an attachment portion configured such that the replenishment container is attachable thereto in a state of being exposed to the outside of the apparatus, and a replenishment port for replenishing the accommodating portion with developer from the replenishment container is defined in the attachment portion.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An image forming apparatus includes a developer container to and from which a replenishment container is attachable and detachable, the developer container including an accommodating portion, and a supporting portion, wherein the developer container includes a projection portion that is provided at one end portion thereof in the rotation axis direction of the developer bearing member and projects toward the supporting portion more than a center portion of the developer container in a crossing direction crossing the rotation axis direction, the projection portion communicates with the accommodating portion and includes, at a distal end portion thereof, an attachment portion configured such that the replenishment container is attachable thereto in a state of being exposed to the outside of the apparatus, and a replenishment port for replenishing the accommodating portion with developer from the replenishment container is defined in the attachment portion.

Abstract: 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.

Abstract: An image forming apparatus includes a developer container to and from which a replenishment container is attachable and detachable, the developer container including an accommodating portion, and a supporting portion, wherein the developer container includes a projection portion that is provided at one end portion thereof in the rotation axis direction of the developer bearing member and projects toward the supporting portion more than a center portion of the developer container in a crossing direction crossing the rotation axis direction, the projection portion communicates with the accommodating portion and includes, at a distal end portion thereof, an attachment portion configured such that the replenishment container is attachable thereto in a state of being exposed to the outside of the apparatus, and a replenishment port for replenishing the accommodating portion with developer from the replenishment container is defined in the attachment portion.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An image forming apparatus includes a developer container to and from which a replenishment container is attachable and detachable, the developer container including an accommodating portion, and a supporting portion, wherein the developer container includes a projection portion that is provided at one end portion thereof in the rotation axis direction of the developer bearing member and projects toward the supporting portion more than a center portion of the developer container in a crossing direction crossing the rotation axis direction, the projection portion communicates with the accommodating portion and includes, at a distal end portion thereof, an attachment portion configured such that the replenishment container is attachable thereto in a state of being exposed to the outside of the apparatus, and a replenishment port for replenishing the accommodating portion with developer from the replenishment container is defined in the attachment portion.

Abstract: 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, wherein 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.

Abstract: 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.

Abstract: An image forming unit is detachably mountable to an image forming apparatus and includes an image bearing member and an intermediate transfer member to which a toner image on the image bearing member is transferred. The image bearing member and the intermediate transfer member are movable relative to each other in the image forming unit.

Abstract: An image forming unit is detachably mountable to a main body of an image forming apparatus and includes a first unit including an image bearing member, and a second unit including an intermediate transfer member to which is transferred a toner image on the image bearing member. The toner image on the intermediate transfer member is transferred to a recording material, and at least either of the first and second units is detachable from and attachable to the image forming unit.

Abstract: An image forming unit detachably mountable to an image forming apparatus includes an image bearing member, and an intermediate transfer member to which a toner image on the image bearing member is transferred, the image bearing member and the intermediate transfer member being movable relative to each other in the image forming unit.

Abstract: An image forming apparatus includes an image bearing body. A transferring portion transfers an unfixed image in the image bearing body onto a recording material, while conveying the recording material. A fixing portion fixes the unfixed image onto the recording material, while conveying the recording material having the unfixed image is transferred in the transferring portion. A flexure detecting device detects flexure of the recording material between the transferring portion and the fixing portion. A recording material detecting device detects the presence/absence of the recording material at a downstream side of the fixing portion with respect to a conveying direction of the recording material. A control device controls a convey velocity of the recording material in the fixing portion on the basis of a time from the detection of the recording material detected by the recording material detecting device to the detection of the flexure of the recording material detected by the flexure detecting device.

Abstract: An image forming unit detachably attachable to an image forming apparatus has an image bearing body, a charging device for charging the image bearing body, a first unit having the image bearing body and the charging device, an intermediate transferring body, a transferring device for transferring a toner image on the image bearing body to the intermediate transferring body, and a second unit having the intermediate transferring body and the transferring device. One of the first unit and the second unit is supplied with electrical power through the other unit.

Abstract: An image forming unit detachably mountable to a main body of an image forming apparatus, the image forming unit comprising a first unit including an image bearing member, a second unit including an intermediate transfer member to which transferred is a toner image on the image bearing member, wherein the toner image on the intermediate transfer member is transferred to a recording material, and at least either of the first and second units is detachable from and attachable to the image forming unit.