Abstract: A cartridge attachable to and detachable from a main body of an image forming apparatus includes a frame. A photosensitive member is rotatably supported by the frame. An opening is provided in the frame that exposes the photosensitive member. A cover member is detachably attached to the frame to cover at least part of the opening. A flexible sheet member having handling caution information displayed thereon is attached to the cover member on one end portion thereof and separably attached to the frame on the other end portion thereof.

Abstract: An image forming apparatus includes a first pressing member configured to press a unit that has a second rotating member that can come into contact with a first rotating member, and a supporting member rotatably supporting the second rotating member. The first pressing member moves the supporting member so that the second rotating member moves from the contact position to the separated position. Also provided is a second pressing member that presses the supporting member. The second pressing member is capable of moving between a mounting/detaching restriction position where mounting/detaching of the cartridge to/from the apparatus main body is restricted, and a mounting/detaching allowing position where mounting/detaching of the cartridge to/from the apparatus main body is allowed.

Abstract: A second unit includes a restricted portion that comes into contact with a restricting portion provided to a body of an apparatus, the restricted portion coming into contact with the restricting portion, in order to restrict the movement of a developer carrier in a direction to make contact with an image carrier, when a developing cartridge has not reached a predetermined attachment position, and not coming into contact with the restricting portion when the developing cartridge is in the predetermined attachment position.

Abstract: Disclosed is a developing apparatus including: a developer bearing member that bears a developer; a developing frame body that rotatably supports the developer bearing member; a one-end side end member that supports one-end side in an axis direction of the developer bearing member of the developing frame body; and another-end side end member that supports the other-end side in the axis direction of the developer bearing member of the developing frame body. Each of the one-end side end member and the other-end side end member is independently movable with respect to the developing frame body.

Abstract: A drum cartridge attachable to and detachable from a main body of an image forming apparatus includes a cleaning frame, a photosensitive drum rotatably supported by the cleaning frame, and an opening provided in the cleaning frame and configured to expose the photosensitive drum. In a factory default state of the drum cartridge, handling caution information is printed in at least part of a region of a surface of the photosensitive drum, the region being exposed from the opening.

Abstract: A cartridge that can be inserted in an apparatus main body of an image forming apparatus by moving along an axial direction of an image bearing member includes the image bearing member, a frame configured to support the image bearing member, a storage member configured to store therein information on the cartridge, and include an electrical contact, and a first pressed section and a second pressed portion configured to be pressed by the apparatus main body. The electrical contact is disposed between the first pressed section and the second pressed section, and is configured to be in contact with the main body contact on a lower side in a state where the cartridge is attached to the apparatus main body.

Abstract: An image forming apparatus includes a cartridge including a rotatable photosensitive drum or a rotatable developing sleeve; and a supporting member for detachably supporting the cartridge, the supporting member and being movable between an inside position for permitting mounting of the cartridge to the apparatus and an outside position in direction along an axial direction of the drum or the sleeve. The cartridge is mountable to the supporting member from above. When the supporting member is in the outside position with the cartridge mounted thereon, an upstream end of the supporting member with respect to a moving direction from the inside position toward the outside position is inside the forming apparatus. When the supporting member is in the outside position, a downstream portion thereof is lower than that when the supporting member is in the inside position.

Abstract: A second unit includes a restricted portion that comes into contact with a restricting portion provided to a body of an apparatus, the restricted portion coming into contact with the restricting portion, in order to restrict the movement of a developer carrier in a direction to make contact with an image carrier, when a developing cartridge has not reached a predetermined attachment position, and not coming into contact with the restricting portion when the developing cartridge is in the predetermined attachment position.

Abstract: A developing device, detachably mountable to an image forming apparatus main body, includes a developing frame containing a developer, a developing roller performing developing using the developer, and a plurality of electric contact points disposed at one end in an axial direction of the developing roller, on a face that intersects the axial direction. The developing device is pivotably centered on a pivot axis parallel to the axial direction of the developing roller, and electrically conducts with the image forming apparatus main body via the plurality of electric contact points when mounted to the image forming apparatus main body. In a plane perpendicular to the axial direction of the developing roller, a position of the pivot axis is within a polygon having a greatest area formed of outer shapes of the plurality of electric contact points and straight lines connecting the outer shapes of the multiple electric contact points.

Abstract: A cartridge that can be inserted in an apparatus main body of an image forming apparatus by moving along an axial direction of an image bearing member includes the image bearing member, a frame configured to support the image bearing member, a storage member configured to store therein information on the cartridge, and include an electrical contact, and a first pressed section and a second pressed portion configured to be pressed by the apparatus main body. The electrical contact is disposed between the first pressed section and the second pressed section, and is configured to be in contact with the main body contact on a lower side in a state where the cartridge is attached to the apparatus main body.

Abstract: A cartridge attachable to and detachable from a main body of an image forming apparatus includes a frame. A photosensitive member is rotatably supported by the frame. An opening is provided in the frame that exposes the photosensitive member. A cover member is detachably attached to the frame to cover at least part of the opening. A flexible sheet member having handling caution information displayed thereon is attached to the cover member on one end portion thereof and separably attached to the frame on the other end portion thereof.

Abstract: An image forming apparatus includes a first pressing member configured to press a unit that has a second rotating member that can come into contact with a first rotating member, and a supporting member rotatably supporting the second rotating member. The first pressing member moves the supporting member so that the second rotating member moves from the contact position to the separated position. Also provided is a second pressing member that presses the supporting member. The second pressing member is capable of moving between a mounting/detaching restriction position where mounting/detaching of the cartridge to/from the apparatus main body is restricted, and a mounting/detaching allowing position where mounting/detaching of the cartridge to/from the apparatus main body is allowed.

Abstract: A drum cartridge attachable to and detachable from a main body of an image forming apparatus includes a cleaning frame, a photosensitive drum rotatably supported by the cleaning frame, and an opening provided in the cleaning frame and configured to expose the photosensitive drum. In a factory default state of the drum cartridge, handling caution information is printed in at least part of a region of a surface of the photosensitive drum, the region being exposed from the opening.

Abstract: An image forming apparatus includes a cartridge including a rotatable photosensitive drum or a rotatable developing sleeve; and a supporting member for detachably supporting the cartridge, the supporting member and being movable between an inside position for permitting mounting of the cartridge to the apparatus and an outside position in direction along an axial direction of the drum or the sleeve. The cartridge is mountable to the supporting member from above. When the supporting member is in the outside position with the cartridge mounted thereon, an upstream end of the supporting member with respect to a moving direction from the inside position toward the outside position is inside the forming apparatus. When the supporting member is in the outside position, a downstream portion thereof is lower than that when the supporting member is in the inside position.

Abstract: Disclosed is a developing apparatus including: a developer bearing member that bears a developer; a developing frame body that rotatably supports the developer bearing member; a one-end side end member that supports one-end side in an axis direction of the developer bearing member of the developing frame body; and another-end side end member that supports the other-end side in the axis direction of the developer bearing member of the developing frame body. Each of the one-end side end member and the other-end side end member is independently movable with respect to the developing frame body.

Abstract: A second unit includes a restricted portion that comes into contact with a restricting portion provided to a body of an apparatus, the restricted portion coming into contact with the restricting portion, in order to restrict the movement of a developer carrier in a direction to make contact with an image carrier, when a developing cartridge has not reached a predetermined attachment position, and not coming into contact with the restricting portion when the developing cartridge is in the predetermined attachment position.

Abstract: A cartridge that can be inserted in an apparatus main body of an image forming apparatus by moving along an axial direction of an image bearing member includes the image bearing member, a frame configured to support the image bearing member, a storage member configured to store therein information on the cartridge, and include an electrical contact, and a first pressed section and a second pressed portion configured to be pressed by the apparatus main body. The electrical contact is disposed between the first pressed section and the second pressed section, and is configured to be in contact with the main body contact on a lower side in a state where the cartridge is attached to the apparatus main body.

Abstract: An image forming apparatus includes a main body, and a moving member movable with respect to the main body in a state of supporting an image forming portion. The moving member includes an image bearing member and an opening, and is movable between an inside position located inside of the main body and an outside position located outside of the main body, and in which at least a part of the image forming portion is removably mountable on the moving member as a cartridge. A shielding member is provided on the moving member and shields the opening. In addition, holding mechanism holds the shielding member in a shielding position corresponding to the opening while the moving member is moved between the inside position and the outside position, and holds the shielding member in a non-shielding position in which the opening is opened when the moving member is located in the inside position.

Abstract: An image forming apparatus includes a main body, a moving member movable while supporting an image forming portion having an image bearing member, between a position inside the main body and a position outside the main body so that at least a part of the image forming portion is removably mountable on the moving member as a cartridge, and an exposure device configured to expose the image bearing member with light through an exposure opening provided in the moving member. In addition, a shielding member is provided in the moving member to shield the exposure opening, and a holding mechanism holds the shielding member in a shielding position for shielding the exposure opening while the moving member is moved and holds the shielding member in a non-shielding position for opening the exposure opening when the moving member is in the inside position.

Abstract: An image forming apparatus, including: a plurality of image forming portions configured to form different color images; a first support member movable with respect to a main body of the image forming apparatus while supporting cartridges; and a second support member movable with respect to the main body independently of the first support member while supporting a cartridge other than the cartridges supported by the first support member, wherein the cartridges supported by the first and second support members are used in the different image forming portions, each of the first and second support members is movable between an inside position inside the main body and an outside position outside the main body, and each of the cartridges supported by the first and second support members is removably mountable in a state in which the corresponding support member is located in the outside position.