13results about "Electrographic process" patented technology

A cartridge unit configured to be detachably attached to an apparatus body of an image forming apparatus includes a first unit including a photosensitive drum, a frame, a developing roller, and a driving-force transmission portion, and a second unit including a memory and a holder, the second unit being detachably attached to the first unit and configured to accommodate developer. The frame includes a bottom surface that extends in an axis direction, and a first side wall that extends from the bottom surface in an intersecting direction that intersects the axis direction, and that is positioned, in the axis direction, inside with respect to the driving-force transmission portion and outside with respect to the second unit attached to the first unit. The memory is disposed outside with respect to the first side wall in the axis direction when the second unit is attached to the first unit.

The cartridge includes a frame, a photosensitive drum, and a rack. The photosensitive drum is supported by the frame and is rotatable about its axis. The rack has one or more teeth at least partially exposed so as to face an axis of the photosensitive drum. The rack is provided on a side of the cartridge in a direction of the axis of the photosensitive drum.

To provide an image forming device capable of stably ensuring grounding via a hinge mechanism for rotatably fitting a door to a device body.SOLUTION: A hinge plate 41 has a conductive abutment 60. A support plate 51 has a conductive abutted part 70 abbutable against the abutment 60. The abutment 60 and the abutted part 70 abut against each other when a front door 40 is closed, and are separated from each other when the front door 40 is opened. The abutment 60 collides with and abut against the abutted part 70 when the front door 40 is closed. When the abutment 60 abuts against the abutted part 70, the abutted part 70 is elastically deformed to come into contact with the abutment 60 at fixed contact pressure. Specifically, in addition to grounding by contact between the lower end surface of an upper cylindrical part 111 of the support plate 51 affected by application of a load of the front door 40 when the front door 40 is in a closed state and the upper end surface of a lower cylindrical part 112 of the hinge plate 41, grounding is ensured by abutment between the abutment 60 provided in a door side plate part 412 and the abutted part 70 provided in a body side plate part 512.SELECTED DRAWING: Figure 9

An image forming apparatus includes a main assembly frame including a first frame and a second frame opposing the first frame, an image reader provided above the main assembly frame; an image processing board and a fan for cooling inside the image forming apparatus. A side of a space for accommodating a photosensitive drum to the first frame is an inside of the first frame and a side opposite to the side of the space to the first frame is an outside of the first frame. The image processing board is in the outside of the first frame. A part of the image processing board is above an upper end of the first frame and below a lower end of the image reader. At least a part of the fun is above the upper end of the first frame and below the lower end of the image reader.

A cartridge includes a photosensitive drum rotatable about an axis extending in an axial direction; a memory including a storing element configured to store information, a memory contact electrically connected to the storing element, and a substrate having a surface on which the memory contact is provided; and a frame which supports the photosensitive drum, on which the substrate is mounted, and which includes a first end with respect to the axial direction and a second end opposite from the first end. The frame includes a container provided with an accommodating chamber for accommodating a developer collected from the photosensitive drum and with an opening communicating with the accommodating chamber and includes a mounting member mounted on the container so as to cover the opening. The mounting member includes a supporting portion for supporting the substrate.

To reduce attachment and detachment resistance in attaching and detaching a cartridge.SOLUTION: An image forming apparatus 1 comprises: a main body housing 10; a cartridge (drum cartridge 20); an electric contact CR; and a guide groove G. The cartridge has a memory (toner memory 36), a memory holder 70, and a memory holder cover 80. The memory has an electric contact surface 36A. The memory holder cover 80 holds the memory holder 70 movably in the vertical direction. In a state in which the cartridge is at a mounted position where it is mounted in the main body housing, the electric contact CR is brought into contact with the electric contact surface 36A from above. The guide groove G is located in a side wall on one side in an axial direction of the main body housing 10. The guide groove G has an upper guide surface 100 and a lower guide surface 200. In the state in which the cartridge is at the mounted position, the electric contact surface 36A is parallel to at least part of the upper guide surface 100 and the lower guide surface 200.SELECTED DRAWING: Figure 13

A cartridge unit includes: a first unit which includes a first supporting portion and a second supporting portion; and a second unit which includes a first supported portion, a second supported portion, and a storage member, the storage member including a memory contact, and a contact arrangement surface on which the memory contact is disposed. The second unit rotates from a first position to a second position in a state in which the first supported portion is supported by the first supporting portion and the second supported portion is supported by the second supporting portion to be positioned with respect to the first unit. A normal direction of the contact arrangement surface faces toward a direction in which the memory contact is exposed. The normal direction faces toward a direction opposite to a direction in which the second unit is directed from the first position to the second position.

This application relates to the technical field of image formation, and more particularly to a cartridge (180) and an image forming apparatus. The cartridge comprises a housing (182) and a first rotate member (181), where the first rotate member is disposed on the housing. The cartridge further comprises a first unlock mechanism (110), which is configured to unlock a first drive source so that the first rotate member can engage with the first drive source. According to the first unlock mechanism of the present application, the operating force for installing the cartridge is reduced. It can solve the problem of excessive operating force when the cartridge is loaded into the image forming apparatus, or solve the problem of direct hard impact between the first rotate member and the first drive source caused by excessive operating force. This avoids damage issues of the first rotate member and the first drive source due to the impact, ensures normal connection between the first rotate member and the first drive source, and improves the reliability of the image forming apparatus.

An image forming apparatus includes an apparatus main body, a transfer roller, a cartridge which is attachable and detachable in a first direction, the cartridge including a photosensitive drum, a blade which scrapes residual toner remaining on the photosensitive drum without being transferred to a recording material, and a development roller, a residual toner container which is attachable to and detachable from the apparatus main body in a second direction and is configured to contain the residual toner scraped from the photosensitive drum by the blade, and a first exterior member which covers an end surface in the second direction of one end portion of the apparatus main body from outside, wherein the residual toner container is provided with a second exterior member which covers an end surface of the apparatus main body from outside.

The cartridge includes a frame, a photosensitive drum, and a rack. The photosensitive drum is supported by the frame and is rotatable about its axis. The rack has one or more teeth at least partially exposed so as to face an axis of the photosensitive drum. The rack is provided on a side of the cartridge in a direction of the axis of the photosensitive drum.