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 drive unit that is mounted on a carriage having an image reading sensor, which is moved with respect to an original, mounted thereon and moves the carriage. The drive unit includes: a motor; a gear train for transmitting rotation of the motor so as to move the carriage; an encoder sensor for reading a code wheel fixed to a rotary shaft of the motor; and a support member for holding the motor. The encoder sensor is urged against a part of the support member by a resilient member, to be thus fixed to the support member.
Abstract:
A mounting structure for an inverter circuit board for a light source lamp of an image reader in which mounting means for mounting the inverter circuit board for a light source lamp of an image reader onto a carriage is located to be operated from the direction in which the carriage moves in one embodiment. The inverter circuit and heat dissipation plate are removably mounted to an end of the full rate carriage. In another embodiment, the circuit board is mounted to the top for access from above the carriage.
Abstract:
A document reading apparatus includes a sensor configured to receive light from a document, an imaging lens configured to form an image of light from the document on the sensor, a first holding member to which the imaging lens is fixed, and a second holding member to which the sensor is fixed, wherein the first holding member and the second holding member are fixed using an adhesive and solder.
Abstract:
An image reader includes a light source, a light reception element, an optical member, and a hold body. The light source applies light to a document. The light reception element receives reflected light reflected by the document. The optical member introduces the reflected light into the light reception element. The hold body has an entry part which is disposed in a portion not contributing to image formation of the reflected light on the light reception element through the optical member. The hold body holds the optical member.
Abstract:
A module 1 movable over the original surface 110 of the original reader 100 has a metal sheet frame 4 disposed in the vicinity of its gravitational center and having a substantially channel-like shape. A first and a second optical systems 2 and 3 and a drive source 6 assembled to be integral with a flat part 40 of the metal sheet frame 4. Thus, a reduced-size, improved quality and improved-accuracy original reader to be used for facsimile devices and image scanners is obtained.
Abstract:
An image forming optical element is provided, in which an incident unit having a first lens face to which a light beam output from an original document (object) is input, an output unit having a second lens face outputting the light beam, and a bent unit connecting the incident unit and the output unit at an angle are integrally formed into a transparent medium. The bent unit has a reflection face reflecting the incident light beam input to the first lens face and guiding the light beam to the second lens face. The incident light beam is collected at any of the incident unit, the bent unit, and the output unit to form an intermediate image of the object, and the intermediate image is formed on the output side of the second lens face to form an erection image of the object.
Abstract:
An image reader includes a light source, a light reception element, an optical member, and a hold body. The light source applies light to a document. The light reception element receives reflected light reflected by the document. The optical member introduces the reflected light into the light reception element. The hold body has an entry part which is disposed in a portion not contributing to image formation of the reflected light on the light reception element through the optical member. The hold body holds the optical member.
Abstract:
A scanning device includes a scanner body, a scanning unit, a lens unit, a sensing unit, and a fastening unit. The scanner body has a bottom surface that is formed with two slots. The fastening unit includes two first fastening members disposed respectively within the slots, and two second fastening members engaging respectively and threadably the first fastening members so as to fasten the sensing unit to the scanner body.
Abstract:
An imaging optical array includes a plurality of imaging optical elements, which is arranged in a line in an arrangement direction, each including incidence lens to which light from an object is incident, an emission lens that emits light, and a light guiding portion that connects the incidence lens and the emission lens and that guides the light incident from the incidence lens to the emission lens, and which images an erect equal-magnification image of an object by the incidence lens and the emission lens, in which the plurality of imaging optical elements is integrally formed of a transparent medium in a state where the respective light guiding portions of the plurality of imaging optical elements are arranged in a line in the arrangement direction, and a void between the light guiding portions of the imaging optical elements adjacent to each other is empty in the transparent medium.