Abstract: According to one embodiment, an image scanning apparatus includes a document table on which an original document is stacked; a substrate; plural first light emitting elements located on one surface of the substrate, the first light emitting elements each emitting light for irradiating the original document on the document table with direct light not reflected by a reflection member; and plural second light emitting elements located on the other surface of the substrate, the second light emitting elements each emitting light for irradiating the original document on the document table with indirect light reflected by the reflection member. The reflection member includes a first reflection member and a second reflection member, and the first reflection member and the second reflection member are located in positions opposed to each other across a reflection optical path of light reflected by the original document on the document table.

Abstract: An image reading device includes: a light source which generates light used for reading an image; a light guide prism which extends in a main scanning direction and guides the light from the light source toward an image reading region; a holding unit which is connected to a part of the light guide prism to hold the light guide prism, has a wall surface distant from at least one end surface of the light guide prism at a position facing the end surface of the light guide prism in the main scanning direction, and has a linear expansion coefficient smaller than that of the light guide prism; and an image sensor which photoelectrically converts reflected light from the image reading region and outputs image data corresponding to the read image.

Abstract: According to one embodiment, a lighting device includes: a light source configured to generate light used for reading of an image; and a light guide configured to extend in a predetermined direction and lead light, which is irradiated from the light source, town image reading region, the light guide having, at an end in the predetermined direction, an incident region where the light irradiated from the light source is made incident and a cutting trace.

Abstract: According to one embodiment, an image scanning apparatus includes a document glass, a substrate, a first semiconductor light emitting element, a second semiconductor light emitting element, a light guiding section, and a light receiving section. The substrate is provided below and obliquely opposed to the document glass. The first semiconductor light emitting element is mounted on a first surface of the substrate opposed to the document glass and emits light to an original document via the document glass. The second semiconductor light emitting element is mounted on a second surface on the opposite side of the first surface and emits light. The light guiding section receives incidence of the light emitted from the second semiconductor light emitting element and emits the light to the original document from a position where a normal of the document glass is present between the light guide section and the first semiconductor light emitting element.

Abstract: An image reading device includes: a light source which generates light used for reading an image; a light guide prism which extends in a main scanning direction and guides the light from the light source toward an image reading region; a holding unit which is connected to a part of the light guide prism to hold the light guide prism, has a wall surface distant from at least one end surface of the light guide prism at a position facing the end surface of the light guide prism in the main scanning direction, and has a linear expansion coefficient smaller than that of the light guide prism; and an image sensor which photoelectrically converts reflected light from the image reading region and outputs image data corresponding to the read image.

Abstract: According to one embodiment, a lighting device includes: a light source configured to generate light used for reading of an image; and a light guide configured to extend in a predetermined direction and lead light, which is irradiated from the light source, town image reading region, the light guide having, at an end in the predetermined direction, an incident region where the light irradiated from the light source is made incident and a cutting trace.

Abstract: According to one embodiment, an image scanning apparatus includes: a document table on which an original document is stacked; a substrate; plural first light emitting elements located on one surface of the substrate, the first light emitting elements each emitting light for irradiating the original document on the document table; and plural second light emitting elements located on the other surface of the substrate, the second light emitting elements each emitting light for irradiating the original document on the document table.

Abstract: According to one embodiment, a reading head includes: a carriage configured to move in a sub-scanning direction with respect to a document table glass; a first light source provided to be movable integrally with the carriage and configured to illuminate a reading target position on the document table glass from an angle tilting to one side in the sub-scanning direction with respect to a reading optical axis extending in a normal direction in the reading target position on the document table glass; and a second light source provided to be movable integrally with the carriage and configured to illuminate the reading target position from a tilting angle larger than the angle of the first light source to the other side in the sub-scanning direction with respect to the reading optical axis and from a position further apart from the reading target position than the first light source.

Abstract: According to one embodiment, an image scanning apparatus includes a document glass, a substrate, a first semiconductor light emitting element, a second semiconductor light emitting element, a light guiding section, and a light receiving section. The substrate is provided below and obliquely opposed to the document glass. The first semiconductor light emitting element is mounted on a first surface of the substrate opposed to the document glass and emits light to an original document via the document glass. The second semiconductor light emitting element is mounted on a second surface on the opposite side of the first surface and emits light. The light guiding section receives incidence of the light emitted from the second semiconductor light emitting element and emits the light to the original document from a position where a normal of the document glass is present between the light guide section and the first semiconductor light emitting element.

Abstract: According to one embodiment, a recording medium identifying device includes: a sensor set downstream in a recording medium conveying direction of a heating device and configured to detect reflected light of a recording medium; and a control section configured to calculate a printing ratio of the recording medium and determine, if the printing ratio of the recording medium is equal to or larger than a threshold, that the recording medium is un-reusable. An erasing apparatus includes: the recording medium identifying device; a heating device configured to heat the recording medium to temperature equal to or higher than erasing temperature; a switching mechanism configured to switch a recording medium conveying path; and a disposal box in which unusable recording media are stored. If the control section determines that the recording medium is un-reusable, the control section controls the switching mechanism and stores the recording medium in the disposal box.

Abstract: An optical scanning device which corrects rotation distortion around an optical axis of the light beam is provided while a housing is reduced in site and is arranged to be manufactured accurately. The optical scanning device includes a pre-deflection optical system that shapes a light beam emitted from a light source into a predetermined sectional shape, a polygon mirror that deflects an incident light beam with plural reflection surfaces arrayed in a rotating direction and scans the light beam on a scanning object, and a folding mirror that deflects the light beam, which is shaped by the pre-deflection optical system, with a reflection surface and guides the light beam to the reflection surfaces of the polygon mirror.

Abstract: A brush for applying liquid or emulsion material such as toothpaste, hair-dye, cleaning material, etc., has a handle, a rod having bristles, sponge, etc. at its head and a pumping mechanism accommodated in the handle. The rod is slidably held, at its rear end, by the main body of the handle. When the rod is pushed rearward and thereafter released, the pumping mechanism is operated so as to such the material from a container forming a part of the handle and feed the sucked material to the head of the rod.

Abstract: A toothbrush has a handle, a bristle-planted rod and a pumping mechanism accommodated in the handle. The rod is slidably held, at its rear end, by the main body of the handle. When the rod is pushed rearward and thereafter released, the pumping mechanism is operated so as to suck tooth-brushing material from a container forming a part of the handle and so as to feed the sucked material to the bristle-planted surface of the rod.