Abstract: In a developing device, a rotation shaft is provided with a developer feeding member, a cleaning member, and a receiving portion. The receiving portion is provided downstream of the developer feeding member and upstream of a light transmitting member, provided to a wall surface of a developer accommodating chamber of the developing device, with respect to a rotational direction of the rotation shaft when the cleaning member has passed through the light transmitting member.

Abstract: In a developing device, a rotation shaft is provided with a developer feeding member, a cleaning member, and a receiving portion. The receiving portion is provided downstream of the developer feeding member and upstream of a light transmitting member, provided to a wall surface of a developer accommodating chamber of the developing device, with respect to a rotational direction of the rotation shaft when the cleaning member has passed through the light transmitting member.

Abstract: A cartridge includes: a memory portion; a substrate having the memory portion and an electrical contact; a support portion for supporting the substrate with the electrical contact being exposed; a first movement regulation portion configured to regulate the movement of the substrate ; and a second movement regulation portion configured to regulate the movement of the substrate, wherein the movement regulation direction in which the movement of the substrate is regulated by the second movement regulation portion is the same as the movement regulation direction in which the movement of the substrate is regulated by the first movement regulation portion, and wherein the movement regulation distance that the movement of the substrate is regulated by the second movement regulation portion is shorter than or equal to the movement regulation distance that the movement of the substrate is regulated by the first movement regulation portion.

Abstract: A cleaning device for a printer includes a cleaning member including a blade and a supporter having first and second surfaces, and a bent portion connecting them, the blade extending in a longitudinal direction at an end of the first surface opposite from the bent portion; and a resin sealing member provided between the cleaning member and the frame, the sealing member including a first portion between the cleaning member and the frame in a region from the blade to the second surface by way of the first surface along the crossing direction at each of one and the other longitudinal ends of the cleaning member, and a second portion sealing between the second surface and the frame in a region between the first portions at the one and the other ends along the longitudinal direction. The second portion is contacted to the second surface with an inclination.

Abstract: A cleaning unit including: frame abutment portions each including a first abutment portion and a second abutment portion; support portions each including a first support portion which abuts against the first abutment portion, and a second support portion which abuts against the second abutment portion so as to support a cleaning member in a pivotable manner about the frame abutment portions as a pivot axis; and an urging member configured to urge the cleaning member in a direction in which an elastic member is brought into contact with a photosensitive drum by pivoting the cleaning member.

Abstract: A cleaning unit for an image forming apparatus includes a frame; a cleaning blade; a first seal sealing between the frame and the blade, provided by injection molding into the frame adjacent to an axial end; and a second seal between the frame and the drum, provided opposing to the free end portion adjacent to the axial end portion, and the second seal having a L-like configuration with projection extending in a direction crossing with the axial direction outwardly beyond an end surface of the blade, wherein the first seal includes a base portion provided at a position inside of the end surface and extending in the crossing direction and an extension extending from the base portion in the axial direction, the extension having a free end portion compressed by the projection to seal between the projection and the frame.

Abstract: A cartridge includes: a memory portion; a substrate having the memory portion and an electrical contact; a support portion for supporting the substrate with the electrical contact being exposed; a first movement regulation portion configured to regulate the movement of the substrate ; and a second movement regulation portion configured to regulate the movement of the substrate, wherein the movement regulation direction in which the movement of the substrate is regulated by the second movement regulation portion is the same as the movement regulation direction in which the movement of the substrate is regulated by the first movement regulation portion, and wherein the movement regulation distance that the movement of the substrate is regulated by the second movement regulation portion is shorter than or equal to the movement regulation distance that the movement of the substrate is regulated by the first movement regulation portion.

Abstract: A cleaning unit including: frame abutment portions each including a first abutment portion and a second abutment portion; support portions each including a first support portion which abuts against the first abutment portion, and a second support portion which abuts against the second abutment portion so as to support a cleaning member in a pivotable manner about the frame abutment portions as a pivot axis; and an urging member configured to urge the cleaning member in a direction in which an elastic member is brought into contact with a photosensitive drum by pivoting the cleaning member.

Abstract: A developer container for an image forming apparatus includes a developer accommodating chamber, provided with an opening, for accommodating a developer to be supplied to the opening; a feeding member, provided in the developer accommodating chamber and having an elasticity, for feeding the developer by rotation thereof; a deforming portion, provided in the developer accommodating chamber and contactable to the feeding member, for deforming the feeding member against the elasticity with the rotation of the feeding member; and a restoration portion for permitting the feeding member deformed by the deformed portion to restore elastically, thereby to throw the developer toward the opening, wherein a boundary portion between the deformed portion the restoration portion is disposed below a lower end of the opening.

Abstract: A developing apparatus includes a developer bearing member, a supporting portion, an urging unit, and a movement regulating member. The developer bearing member rotates while bearing developer. The supporting portion rotatably and movably supports the developer bearing member and includes a recessed portion that is formed into a concave shape. The urging unit urges the developer bearing member in a predetermined direction of the rotational axis direction. The movement regulating member is fitted to an end of the developer bearing member and is movable together with the developer bearing member. The movement regulating member may move to a first position where movement in a perpendicular direction is regulated by coming into contact with a portion of the supporting portion and a second position that is a position apart from the first position and movable in the perpendicular direction without coming into contact with the portion of the supporting portion.

Abstract: In a developing device, a rotation shaft is provided with a developer feeding member, a cleaning member, and a receiving portion. The receiving portion is provided downstream of the developer feeding member and upstream of a light transmitting member, provided to a wall surface of a developer accommodating chamber of the developing device, with respect to a rotational direction of the rotation shaft when the cleaning member has passed through the light transmitting member.

Abstract: In a developing device, a rotation shaft is provided with a developer feeding member, a cleaning member, and a receiving portion. The receiving portion is provided downstream of the developer feeding member and upstream of a light transmitting member, provided to a wall surface of a developer accommodating chamber of the developing device, with respect to a rotational direction of the rotation shaft when the cleaning member has passed through the light transmitting member.

Abstract: A developer container for an image forming apparatus includes a developer accommodating chamber, provided with an opening, for accommodating a developer to be supplied to the opening; a feeding member, provided in the developer accommodating chamber and having an elasticity, for feeding the developer by rotation thereof; a deforming portion, provided in the developer accommodating chamber and contactable to the feeding member, for deforming the feeding member against the elasticity with the rotation of the feeding member; and a restoration portion for permitting the feeding member deformed by the deformed portion to restore elastically, thereby to throw the developer toward the opening, wherein a boundary portion between the deformed portion the restoration portion is disposed below a lower end of the opening.

Abstract: In a developing device, a rotation shaft is provided with a developer feeding member, a cleaning member, and a receiving portion. The receiving portion is provided downstream of the developer feeding member and upstream of a light transmitting member, provided to a wall surface of a developer accommodating chamber of the developing device, with respect to a rotational direction of the rotation shaft when the cleaning member has passed through the light transmitting member.

Abstract: A developer container for an image forming apparatus includes a developer accommodating chamber, provided with an opening, for accommodating a developer to be supplied to the opening; a feeding member, provided in the developer accommodating chamber and having an elasticity, for feeding the developer by rotation thereof; a deforming portion, provided in the developer accommodating chamber and contactable to the feeding member, for deforming the feeding member against the elasticity with the rotation of the feeding member; and a restoration portion for permitting the feeding member deformed by the deformed portion to restore elastically, thereby to throw the developer toward the opening, wherein a boundary portion between the deformed portion the restoration portion is disposed below a lower end of the opening.

Abstract: An image forming apparatus includes a rotatable image bearing member; a cleaning blade for removing toner in contact with the image bearing member; a load adjusting device for adjusting a contact load between the cleaning blade and the image bearing member; a developing roller for developing an electrostatic latent image on the image bearing member; a developing roller moving device for moving the developing roller between a developing position in which the electrostatic latent image is to be developed and a non-developing position retracted from the developing position; and a control device for effecting control such that the developing roller is moved from the developing position to the non-developing position by the developing roller moving device during rotation of the image bearing member and after an area on the image bearing member opposed to the developing roller at the time when the developing roller is started to be moved from the developing position to the non-developing position passes through a c

Abstract: A developing apparatus used in an electrophotographic image forming apparatus includes: a developing roller for developing a latent image formed on a photosensitive drum; a developing container for containing developer; a developer conveying member for supplying the developer from the developing container to the developing roller; a light transmissive member provided in the developing container, and formed integrally with a light emitting guide portion for guiding, into the developing container, a detecting light from a light emitting element provided in an electrophotographic image forming apparatus main body to detect a developer remaining amount in the developing container and a light receiving guide portion for guiding the detecting light that has passed through the developing container to a light receiving element provided in the apparatus main body; and a regulating member for covering at least a space between the light emitting guide portion and the light receiving guide portion.

Abstract: A developing apparatus includes a developer bearing member, a supporting portion, an urging unit, and a movement regulating member. The developer bearing member rotates while bearing developer. The supporting portion rotatably and movably supports the developer bearing member and includes a recessed portion that is formed into a concave shape. The urging unit urges the developer bearing member in a predetermined direction of the rotational axis direction. The movement regulating member is fitted to an end of the developer bearing member and is movable together with the developer bearing member. The movement regulating member may move to a first position where movement in a perpendicular direction is regulated by coming into contact with a portion of the supporting portion and a second position that is a position apart from the first position and movable in the perpendicular direction without coming into contact with the portion of the supporting portion.

Abstract: A developer container for an image forming apparatus includes a developer accommodating chamber, provided with an opening, for accommodating a developer to be supplied to the opening; a feeding member, provided in the developer accommodating chamber and having an elasticity, for feeding the developer by rotation thereof; a deforming portion, provided in the developer accommodating chamber and contactable to the feeding member, for deforming the feeding member against the elasticity with the rotation of the feeding member; and a restoration portion for permitting the feeding member deformed by the deformed portion to restore elastically, thereby to throw the developer toward the opening, wherein a boundary portion between the deformed portion the restoration portion is disposed below a lower end of the opening.