Abstract:
An optical scanner includes a light source for projecting a light beam, a deflector for deflecting the light beam, a reflective member for reflecting the light beam toward a target, a contact member, and a pressing member. The reflective member includes a reflective plane and a rear plane opposite the reflective plane. The contact member contacts one of the rear plane of the reflective member and a first lateral plane perpendicular to the reflective plane to position the reflective member in place. The pressing member presses the reflective member against the contact member and includes a first pressing portion to press the reflective plane of the reflective member and a second pressing portion to press a ridge of the reflective member at which the reflective plane and a second lateral plane opposite the first lateral plane and perpendicular to the reflective plane of the reflective member meet.
Abstract:
An image reading apparatus includes a body; a circuit board fixed to the body; a light emitter disposed on a first surface of the circuit board, the light emitter emitting light with which a document is irradiated; a light guide disposed opposite the circuit board with the light emitter therebetween, the light emitted from the light emitter passing through the light guide; an urging unit; a supporting unit fixed to the body; and a pressing unit. The pressing unit includes a first portion and a second portion. The first portion is pressed in a direction from the light emitter toward the light guide as a result of receiving a force from the urging unit. The second portion presses the light guide against the light emitter as a result of receiving a reaction force from the supporting unit when the first portion is pressed.
Abstract:
An image reading apparatus includes a body; a circuit board fixed to the body; a light emitter disposed on a first surface of the circuit board, the light emitter emitting light with which a document is irradiated; a light guide disposed opposite the circuit board with the light emitter therebetween, the light emitted from the light emitter passing through the light guide; an urging unit; a supporting unit fixed to the body; and a pressing unit. The pressing unit includes a first portion and a second portion. The first portion is pressed in a direction from the light emitter toward the light guide as a result of receiving a force from the urging unit. The second portion presses the light guide against the light emitter as a result of receiving a reaction force from the supporting unit when the first portion is pressed.
Abstract:
For realizing widening of a light scanning angle and is excellent in durability, the optical scanning actuator includes a movable unit that supports an optical element, a plurality of leaf springs having a thin plate shape with one end portion being fixed and another end portion being attached to the movable unit, and an electromagnetic driving unit including a magnet, a yoke laminated on the magnet to form a closed magnetic circuit together with the magnet, and a coil held by the movable unit. The coil is positioned in a gap between the magnet and the yoke such that opening plane of the coil is substantially orthogonal to a laminating direction of the magnet and the yoke. The movable unit is driven by an electromagnetic force applied to the coil.
Abstract:
A light source device which can prevent a large-sized structure of the device, a light source device which can improve assembling efficiency and maintainability of the device, and an image forming method and apparatus in which occurrence of moisture condensation can be prevented, are provided. An LED substrate in which a large number of light emitting diodes (LED) are arranged on the surface thereof in a two-dimensional manner, a base, a Peltier element, and a radiating fin are formed integrally by urging force of a compression spring. The radiating fin is disposed in contact with a light source housing body. Further, in carrying out temperature adjustment control using the Peltier element, the temperature adjustment control is carried out only when the internal temperature of the device in which a light source device is provided, is a predetermined temperature or higher.
Abstract:
A light source device which can prevent a large-sized structure of the device, a light source device which can improve assembling efficiency and maintenability of the device, and an image forming method and apparatus in which occurrence of moisture condensation can be prevented, are provided. An LED substrate in which a large number of light emitting diodes (LED) are arranged on the surface thereof in a two-dimensional manner, a base, a Peltier element, and a radiating fin are formed integrally by urging force of a compression spring. The radiating fin is disposed in contact with a light source housing body. Further, in carrying out temperature adjustment control using the Peltier element, the temperature adjustment control is carried out only when the internal temperature of the device in which a light source device is provided, is a predetermined temperature or higher.