An image forming apparatus includes a drawer having an exposure head. The drawer can include first and second guides to receive a drum cartridge and a developer cartridge, respectively. The first guide extends from a first side of the drawer into the drawer and toward the exposure head from a first side of the exposure head, and the second guide extends from the first side of the drawer into the drawer and toward the exposure head from a second side of the exposure head opposite the first side. In some instances, the drum cartridge is positioned at least partially below the developer cartridge but is removable from the drawer without removing the developer cartridge.

An image forming apparatus includes an apparatus main body and a unit. The unit is detachably attached to the apparatus main body along one direction. The apparatus main body includes a main body side board and a main body side connector. The main body side connector is mounted on the main body side board. The unit includes a unit side board, a unit side connector, a supporting member and a biasing member. The unit side connector is mounted on the unit side board and fitted to the main body side connector from a first side in the one direction as the unit is attached to the apparatus main body. The supporting member supports the unit side board so as to be movable along the one direction. The biasing member biases the unit side board to a second side in the one direction.

A transport member, that transports a developer by rotating in a rotation direction that is predetermined around a rotation axis, includes: a shaft part including the rotation axis; and a blade part spirally provided on an outer peripheral surface of the shaft part, wherein the blade part includes a transport surface that is a surface facing a downstream side in a transport direction of the developer along the rotation axis, and a non-transport surface that is a surface other than the transport surface, and the transport member further includes a fin protruding from the non-transport surface of the blade part, the fin being provided with an interval from the outer peripheral surface of the shaft part.

A contact point end portion of a second ring connected to a first ring portion on a power reception portion side protrudes further in the direction of a power reception portion than a contact point end portion of the first ring connected to a spring portion on a power reception portion side.

An image forming apparatus includes an apparatus main body and a unit . The unit is detachably attached to the apparatus main body along one direction. The apparatus main body includes a main body side board and a main body side connector. The main body side connector is mounted on the main body side board. The unit includes a unit side board, a unit side connector, a supporting member and a biasing member. The unit side connector is mounted on the unit side board and fitted to the main body side connector from a first side in the one direction as the unit is attached to the apparatus main body. The supporting member supports the unit side board so as to be movable along the one direction. The biasing member biases the unit side board to a second side in the one direction.

The disclosure shows a cleaning blade for electrophotographic equipment, the cleaning blade through which both high hardness and low warping are obtained and excellent toner scraping properties are realized. The cleaning blade (10) includes a blade part (12) comprising a cured material of a urethane composition containing a polyol, an isocyanate, and a crosslinker or a chain extender. The content of the isocyanate is 28.0 mass % or more with respect to the entire composition. The crosslinker or the chain extender comprises a triol having a molecular weight of 150 or less. The content of the crosslinker or the chain extender is 4.0 mass % or less with respect to the entire composition. The content of the triol having a molecular weight of 150 or less is 0.8 mass % or more with respect to the entire composition.

A disassemblable imaging apparatus includes a photo sensing assembly, a toner cartridge, and at least one torsion spring. The photo sensing assembly includes a casing and a photosensitive drum. The casing has an accommodating space. The photosensitive drum is installed on the casing and located at a side of the accommodating space. The toner cartridge is detachably located in the accommodating space. The at least one torsion spring is located in the accommodating space. A part of the at least one torsion spring is installed on the casing, and another part of the at least one torsion spring presses a side of the toner cartridge facing away from the photosensitive drum for pushing the toner cartridge toward the photosensitive drum.

A disassemblable imaging apparatus includes a photo sensing assembly and a toner cartridge. The photo sensing assembly has an accommodating space, a photosensitive side and a fastening side. The photosensitive side and the fastening side are respectively located at two sides of the accommodating space, which are opposite to each other. The toner cartridge includes a main body and a handle. The handle is swingably connected to a side of the main body in order to move an end of the handle, which is away from the main body, close to or away from the main body. The toner cartridge is detachably installed in the accommodating space, and the handle is detachably fastened to the fastening side of the photo sensing assembly.

A photo interrupter unit includes a photo interrupter and a supporting portion configured to support the photo interrupter detachably. The photo interrupter includes a light emitting portion configured to emit light, a photo sensing portion configured to receive the light emitted from the light emitting portion, and a claw portion configured to be elastically deformable. The supporting portion includes a mounting surface on which the photo interrupter is mounted, a hole portion defining a hole into which the claw portion is inserted, provided in the mounting surface and configured to engage with the claw portion, and a projection projecting from the mounting surface, and configured to regulate a position of the photo interrupter in a deforming direction in which the claw portion is elastically deformable in a state where the claw portion and the hole portion are engaged.

A cleaning blade for a photosensitive member carrying a liquid developer includes a free end surface provided at one end portion in a height direction of the blade, the free end surface being provided with an edge portion at one end portion of the free end surface with respect to the thickness direction. The edge portion has curved portions and a linear portion therebetween. As seen in the thickness direction, the curved portion includes an arcuate shape portion and is connected with the linear portion such that the linear portion is tangential of the arcuate shape; a height of the blade increases toward the end portion of the blade; a maximum angle formed between the curved portion and the linear portion is not less than 5 degrees; and the curved portion includes a portion having radius of curvature not less than 240 mm and not more than 320 mm.