Abstract: A light exposure device includes a light emitter that outputs light, and that is supported to be movable relative to a body of an image forming apparatus; a wiring member connected to the light emitter, and having an extra length to allow the wiring member to be folded back near one end of the wiring member in a movement direction of the light emitter while the light emitter is attached to the body of the image forming apparatus; and a separator disposed at a folded-back portion of the wiring member to separate portions of the folded-back portion of the wiring member from each other.

Abstract: An image formation system includes an image carrier that rotates; an opposed member that is opposed to the image carrier and is connected to the image carrier by an adjuster that adjusts a distance to the image carrier; and a temperature detector that is provided on any two or more components among the opposed member, the adjuster, and components other than the adjustor that are interposed between the opposed member and the image carrier.

Abstract: An exposure device includes a lens group that extends in an axial direction of a rotatable image bearing member and that has multiple lenses through which exposure light radiated toward the image bearing member is transmitted, a housing to which the lens group is attached, a substrate that is attached to the housing opposite the image bearing member with the lens group interposed therebetween and that is equipped with an electronic component, and a measurement sensor that is mounted at the substrate and that measures a distance from the image bearing member.

Abstract: An image forming system includes: a rotatable image carrier; a charger that is disposed to be opposed to the image carrier, and configured to charge a surface of the image carrier; a light exposer that is disposed to be opposed to the image carrier downstream of the charger in a rotational direction of the image carrier, and configured to expose the image carrier by transmitting light through multiple lenses arranged in an axial direction of the image carrier to form a latent image on the image carrier, the light being emitted from multiple light emitting elements; and a first ventilation pipe that is provided between the charger and the light exposer to construct part of an in-pipe wall surface at a lateral surface of the light exposer, and configured to allow air to pass through the first ventilation pipe, the lateral surface closer to the charger.

Abstract: A light-emitting device includes a base that is composed of a metal block that extends in a first direction, multiple light-emitting portions unaligned in the first direction and facing a front surface of the base, the multiple light-emitting portions including multiple light sources that extend in the first direction and that are supported by a support that extends in the first direction, and a handle that is formed below the front surface of the base and that is to be held by an operator with the base placed on a flat surface.

Abstract: A light emitting device includes: a base that extends in one direction; plural light emitters that are disposed on a front surface side of the base so as to be displaced from each other in a direction intersecting the one direction and in each of which plural light sources that are arranged in the one direction are supported by a support that extends in the one direction; and a substrate that is provided so as to extend in the one direction on an inner side portion of each of the plural light emitters in the direction intersecting the one direction of the base and that drives the light emitter.

Abstract: A light emitting device includes a light emitting unit that generates heat as light is emitted, a support portion that supports the light emitting unit, a heating unit that is disposed close to a surface opposite to the light emitting unit with respect to the support portion and that heats the support portion, an air blowing unit that blows air to the light emitting unit from a heating unit side, and a cover portion that is provided between the heating unit and the air blowing unit and that covers the heating unit against wind caused by the air blowing unit.

Abstract: A light emitting device includes: a base that extends in one direction and that is formed of a metal block; plural light emitters that are disposed on a front surface side of the base so as to be displaced from each other in the one direction and in each of which plural light sources that are arranged in the one direction are supported by a support that extends in the one direction; and a protective member that is provided at an end portion of the base in a direction intersecting the one direction, that is disposed on a lateral side of the plural light emitters so as to extend in the one direction, and that protects the plural light emitters from outside.

Abstract: A light emitting device includes: a base that extends in one direction, and has an opening; plural light emitting units that are disposed to be displaced from each other in the one direction on the front surface side of the base, the light emitting units each including a support that extends in the one direction, and plural light sources that are disposed in the one direction on the support; and an air blowing unit that blows air toward the light emitting units through the opening.

Abstract: An image forming apparatus includes: an image carrier that extends in a first direction; a light emitter that includes a substrate that extends in the first direction, and multiple light-emitting devices that are disposed on the substrate and emit light to the image carrier; a positioning portion that is disposed between the substrate and the image carrier, and that fixes a position of the light emitter with respect to the image carrier in at least one direction perpendicular to a light emission direction; and an adjuster that is located to overlap the positioning portion when viewed in the first direction, and that adjusts a position of the light emitter in the light emission direction.

Abstract: A light-emitting device includes: a first light-emitting unit that extends in one direction and that has a first emission surface that emits light located along the one direction; a second light-emitting unit that is located in the one direction with respect to the first light-emitting unit, that extends in the one direction, and that has a second emission surface that emits light located along the one direction; a cleaning unit that is capable of moving in the one direction and an opposite direction that is opposite to the one direction to clean the first emission surface; a transmission part that extends from the cleaning unit in the one direction and that transmits a moving force for moving the cleaning unit to the cleaning unit; and an extending part that extends from the transmission part in the one direction to elongate the transmission part.

Abstract: A light-emitting device includes a base that extends in one direction; a light-emitting unit in which multiple light sources that are disposed in the one direction are supported by a supporting body that extends in the one direction and that is formed from a metal block; a spacer that is interposed between the base and the light-emitting unit in a direction of an optical axis of each light source; and a fixing unit that fixes the light-emitting unit to the base in a mode in which a compressive load is applied to the spacer.

Abstract: An exposure device includes: at least one light emitter that includes a substrate and a light-emitting device disposed on the substrate; and a position adjuster that includes a contact member having an outer periphery in contact with the substrate, a support member that rotatably supports the contact member, and at least one mover that is in contact with the support member to move the support member in a light emission direction of the light emitter.

Abstract: A light emitting device includes: a member having a first surface facing in one direction and a second surface facing an opposite side to the first surface; a light emitter that is disposed at the first surface, generates heat due to light emission, and has a lower stiffness than the member; and a heater that is disposed at the second surface of the member, and heats the member from the second surface.

Abstract: An image forming apparatus includes a first image forming unit including a rotatable first image carrier and a first light-emitting unit, the first light-emitting unit including a first base member and plural first light-emitting devices, the first base member extending in an axial direction of the first image carrier, the plural first light-emitting devices being provided on the first base member and being configured to apply light to an outer circumferential surface of the first image carrier; and a second image forming unit including a rotatable second image carrier and a second light-emitting unit, the second light-emitting unit including a second base member and plural second light-emitting devices, the second base member extending in an axial direction of the second image carrier, the plural second light-emitting devices being provided on the second base member and being configured to apply light to an outer circumferential surface of the second image carrier.

Abstract: An image forming apparatus includes: a rotatable image carrier on an outer circumferential surface of which an image is to be formed and that is movable in a rotation axis direction between an image forming position and a maintenance position; a light-emitting unit including a base member extending in the rotation axis direction of the image carrier, and plural light-emitting devices provided on the base member and configured to apply light to the outer circumferential surface of the image carrier, the light-emitting unit being configured to move together with the image carrier in the rotation axis direction; and a supporting unit configured to move together with the image carrier in the rotation axis direction and to support the light-emitting unit when the image carrier and the light-emitting unit are at the maintenance position and the light-emitting unit is disabled from being positioned with respect to the image carrier.

Abstract: A light emitting device includes: a member having a first surface facing in one direction and a second surface facing an opposite side to the first surface; a light emitter that is disposed at the first surface, generates heat due to light emission, and has a lower stiffness than the member; and a heater that is disposed at the second surface of the member, and heats the member from the second surface.

Abstract: An exposure device includes: at least one light emitter that includes a substrate and a light-emitting device disposed on the substrate; and a position adjuster that includes a contact member having an outer periphery in contact with the substrate, a support member that rotatably supports the contact member, and at least one mover that is in contact with the support member to move the support member in a light emission direction of the light emitter.

Abstract: An image forming apparatus includes: an image carrier that extends in a first direction; a light emitter that includes a substrate that extends in the first direction, and multiple light-emitting devices that are disposed on the substrate and emit light to the image carrier; a positioning portion that is disposed between the substrate and the image carrier, and that fixes a position of the light emitter with respect to the image carrier in at least one direction perpendicular to a light emission direction; and an adjuster that is located to overlap the positioning portion when viewed in the first direction, and that adjusts a position of the light emitter in the light emission direction.

Abstract: A light emitting device, includes: a base plate extending in a first direction; multiple light emitting units arranged on a surface of the base plate while being shifted from each other in the first direction, and each including a support body extending in the first direction and multiple light sources supported on the support body while being arranged in the first direction; and a flow path disposed over the surface of the base plate to surround at least part of the light emitting units and allowing air to flow therethrough in the first direction.