Abstract: An image reading device includes a reading unit, a drive section, an operation control section, an acquiring section, and a casing. The drive section moves the reading unit. The operation control section controls a drive operation by the drive section and a light emitting operation by a light emitting section. The acquiring section acquires status information indicating a state of the device. The casing constitutes an outer contour of the device. The casing has a symbol inscribed on a predetermined portion therein. The symbol corresponds to the status information item. When the acquiring section acquires the status information item, the operation control section controls the drive section to move the reading unit to a position corresponding to the portion on which the symbol corresponding to the status information item is inscribed and controls the light emitting section to emit light while the reading unit is located at the position.

Abstract: A light emitting device that forms a latent image by irradiating light onto a charged surface of an image carrier. The light emitting device includes an electro-optical substrate that forms an optical image, a focusing lens array that focuses light from the electro-optical substrate to form an erect image of the corresponding optical image on the charged surface, and a frame in which the focusing lens array is fixed. A position determining member, which is formed of resin, is disposed on the frame, comes in contact with a supporting body that supports the image carrier, and determines a distance between the focusing lens array and the image carrier by its own height.

Abstract: A method and system for scanning comprises rotating a scanning chassis of an optical scanner to create an acute angle between the scan line and a scanning direction, such that the scanning chassis has two ends, and moving the scanning chassis in the scanning direction and with the acute angle between the scan line and the scanning direction, both two ends of the scanning chassis being moved in the scanning direction, while one of the two ends is moved more slowly than the other one so that the scanning chassis is made to be rotated with the acute angle.

Abstract: An image forming apparatus including a photoreceptor having an image carrying surface, first and second exposing devices to expose the image carrying surface to form first and second latent images, and first and second developing devices to develop the first and second latent images to form first and second toner images on the image carrying surface. The first exposing device has a light source which emits a light beam, a deflector which deflects the light beam on the image carrying surface to form a scanning line, a first optical system to focus the light beam, and a first adjustor which adjusts an alignment between the first optical system and the image carrying surface for correcting variation of lateral magnification in the primary scanning direction of the optical system so that the first toner image and the second toner image are superposed on a recording sheet.

Abstract: An image forming apparatus has a photoreceptor having a image carrying surface, an exposing device to imagewise expose the image carrying surface to form a latent image, and a developing device to develop the latent image to form a toner image on the image carrying surface. The exposing device has a light source which emits a light beam, a deflector which deflects the light beam to form a scanning line with the light beam on the image carrying surface, a cylindrical lens between the deflector and the image carrying surface which focuses the light beam on the image carrying surface, and an adjusting mechanism which adjusts an inclination of the scanning line and adjusts variance in magnification of an image on the scanning line.

Abstract: An optical scanning device which divides an area to be scanned on a surface to be scanned into n (wherein n≧2) partial scanning portions in a longitudinal direction thereof. The scanning device includes n light sources respectively corresponding to the n partial scanning portions and configured to optically scan the n partial scanning portions with respective light fluxes from the n light sources thereby to scan the areas. The optical scanning device includes a deflecting device configured to deflect the light fluxes from the n light sources, and a scan imaging optical device configured to converge the light fluxes deflected by the deflecting device toward the surface to be scanned, so that each of the respective light fluxes forms an optical spot on a corresponding partial scanning portion of the n partial scanning portions.

Abstract: An error between a set value of magnification and an actual value of magnification is reduced by correcting the amounts of movement of a single-focus lens unit and a mirror in accordance with a production error in the focal length (in accordance with the lot number) of the single-focus lens unit.

Abstract: An optical variable power module has a movable lens unit slidably mounted on a chassis, such that the lens unit is moved along an optical axis defined thereby, and a movable mirror unit slidably mounted on the chassis, such that the mirror unit is moved along the optical axis of the lens unit. The movable mirror unit has a frame, a pair of supporting plates shiftably attached to the frame, and at least one mirror supported by the supporting plates. The chassis has a pair of abutment faces formed thereon such that the supporting plates can be abutted against the abutment faces. The abutment faces define a plane perpendicular to the optical axis of the lens unit, whereby the supporting plates are shifted with respect to the frame such that the longitudinal axis of the mirror supported by the supporting plates is perpendicular to the optical axis of the lens unit.

Abstract: A color scanner with a wedge shaped platen sequentially records opposing pages of a bound document positioned thereon using a single imaging station. The scanner includes a partially reflective mirror positioned between the wedge shaped platen. The two sides of the wedge shaped platen are illuminated with polarized light having angles orthogonal to each other. Polarized illuminators operate in combination with polarization analyzers positioned under the wedge shaped platen to sequentially image the opposing pages of the bound document. A controller insures that polarized light sources consisting of the three primary colors red, green, and blue, sequentially expose each opposing page of the bound document. The opposing pages of the bound document are focused through optics onto the single imaging station. In another embodiment, light polarized by analyzers positioned under the wedge shaped platen is filtered by a polarizer positioned in front of the focal optics before reaching the single imaging station.

Abstract: An image-forming apparatus includes an image-forming unit for image-forming image information of an original on a record medium, an optical-path-length varying unit for varying a distance between an object and an image, a driving unit for driving the image-forming unit and the optical-path-length varying unit in an interlocking manner such that the image information of the original is formed on the record medium at a plurality of magnifications, and a control unit for controlling the driving unit. In the structure, the image-forming unit and the optical-path-length varying unit are mounted to the driving unit such that the positions of the image-forming unit and the optical-path-length varying unit are adjustable relative to the driving unit. An appropriate magnification is obtained even if a focal length of the fixed-focus image-forming lens fluctuates due to errors occurring during its manufacturing process.

Abstract: This invention relates to an image forming apparatus of electro-photography type in which a light image obtained by reflected light from an original document image by projecting light onto the original document image is changed in size at a set magnification rate to form an electrostatic latent image on a photosensitive member, and the electrostatic latent image is developed into a toner image.