Provided are an light scanning device capable of adjusting the position of optics and an image forming apparatus including the light scanning device. The light scanning device includes first and second light sources configured to emit first and second light beams, respectively; optics including first and second lenses for transmitting the first and second light beams therethrough and a lens holder configured to support the second lens; and a housing configured to support the first and second light sources and the optics, wherein the first and second light sources and the first lens are supported to be fixed to the housing, and the second lens is supported to be able to move with respect to the first lens.

An image forming apparatus includes: a main casing; a drum cartridge; and a developing cartridge. The drum cartridge includes a photosensitive drum having a rotational axis. The drum cartridge is drawable from the main casing in a first direction where the axis of the photosensitive drum extends. The developing cartridge is drawable from the main casing in the first direction. The developing cartridge includes: a developing roller; a front wall; and a first developing-device frame. The front wall is disposed at a downstream end of the developing cartridge in the first direction. The front wall has a first hole. The first developing-device frame supports the developing roller. The first developing-device frame includes a first boss extending in the first direction. The first boss goes through the first hole of the front wall.

In an image-forming apparatus, an optical scanning device that is adjustable in a turn available manner around a turn axis line parallel to an axis line orthogonal to a main scanning direction of a light beam is attached to an image-forming apparatus body. The image-forming apparatus body has a shaft support that supports the optical scanning device in a turn available manner around a turn axis line and a holder facing a housing at a position different from that of the shaft support. The optical scanning device is held by the image-forming apparatus body in a state in which an elastic member is sandwiched between the housing and the holder in a pressed manner.

An optical scanning device (12) includes cleaning holders (511, 512), light transmitting members (52), a linear member (54), a winding motor (55), and stoppers (56a, 56b). The two cleaning holders (511, 512) are coupled to the linear member (54). The linear member 54 is driven to circulate by the winding motor (55), whereby the two cleaning holders (511, 512) move and each cleaning member slides on a corresponding one of the light transmitting members (52). When the cleaning holders (511, 512) come into contact with the respective stoppers (56a, 56b), the stoppers (56a, 56b) restrict movement of the respective cleaning holders (511, 512) in one of directions of extension of the light transmitting members (52). A contact determining section (913) determines, based on a current value of the winding motor (55), that the cleaning holder (511, 512) has come into contact with the stopper (56a, 56h).

An image forming apparatus includes an image bearing member, a frame member including a support surface and made of metal, an exposure unit disposed such that an emission direction in which the light is emitted to the image bearing member is inclined with respect to the support surface, a support member made of metal and configured to support the exposure unit that is in an inclined posture with respect to the support surface, and a positioning member made of resin and configured to be in contact with the exposure unit and position the exposure unit. The support surface of the frame member is in contact with at least one of the support member or the positioning member, and wherein the exposure unit is configured to be attached to the frame member via the support member and the positioning member.

An image forming apparatus includes a transfer belt rotating in a rotational direction, photosensitive drums, primary transferring parts, static eliminating parts and cleaning parts. The static eliminating part is arranged between the primary transferring part and the cleaning part, and includes a light guide body and a light source arranged at one end side of the light guide body. The static eliminating part irradiates upstream and downstream sides from the light guide body in the rotational direction with the static eliminating light. The image forming apparatus comprises a first light shading part and/or a second light shading part. The first/second light shading part is arranged between the photosensitive drum at a downstream/upstream side from the light guide body in the rotational direction and the light guide body to adjust pre-transfer/post-transfer static eliminating light quantity from the light guide body to the downstream/upstream side photosensitive drum.

An image forming apparatus (1) includes a frame (61) supporting an attached object (23) inserted into an apparatus body (2) and an attachment device (62) fixing the attached object (23) supported by the frame (61). The frame (61) includes a leading end plate (61b) facing to a leading end in an inserting direction of the attached object (23). The attached object (23) includes a fixing pin (65) supported by the leading end plate (61b) in advanceable/retreatable state along the inserting direction and formed connectable to the attached object (23), a biasing member (66) biasing the fixing pin (65) toward the inserting direction and a locking member (67) restricting dropout of the fixing pin (65). The attachment device (62) holds the attached object (23) being connected to the fixing pin (65) and receiving the biasing force of the biasing member (67) at a position gravitated to the leading end plate (61b).

An optical scanning apparatus includes a light source for emitting a beam in accordance with image information; a controller substrate for controlling the light source; a deflector for scanningly deflecting the beam; a optical device for directing the deflected beam onto a member-to-be-scanned; a casing supporting the substrate, the deflector and the optical device, wherein the substrate is provided with a projected portion projecting relative to the casing; and a connector for removably connecting a cable for supplying a signal to the light source, the connector being provided on a side of the projected portion where the controller substrate is supported by the casing. The cable is insertable and removable relative to the connector in a direction parallel with a surface of the projected portion provided with the connector.

This invention relates to a media exposing device for exposing media. The media exposure device includes a holding structure; a substrate having a plurality of diodes mounted thereon; and a radiation modification element for modifying the radiation emitted by the diodes. The substrate and the radiation modification element are secured by the holding structure in an arrangement wherein the diodes can emit radiation from the device and wherein the radiation modification element is spaced from the diodes in the radiation path of the diodes; and a telecentric lens secured to the holding structure in an arrangement wherein the telecentric lens is substantially in register with the radiation path of the diodes.

An image forming apparatus includes a casing, an image forming unit, a plurality of covers, a shutter, and a linkage mechanism. The image forming unit includes a light source and is disposed in an interior of the casing. The image forming unit forms an image on a recording medium. The covers are openable and closable relative to the casing. The shutter is openable and closable relative to the light source. The linkage mechanism links the respective covers to the shutter. The linkage mechanism sets the shutter in a closed state in a situation in which at least one of the covers is in an open state and sets the shutter in an open state in a situation in which all the covers are in a closed state.