Abstract:
The objective of the present invention is the easy removal, from an opening in a support base, of a document support plate. A document reading unit according to this invention includes an image sensor, for reading a document; a support base having a box-like shape, for internally accommodating and supporting the image sensor, and an opening through which the image sensor faces a document; a contact glass that is located at the opening, for covering the image sensor and supporting a document that is being conveyed to the image sensor; glass support members linked with the contact glass and arranged on the support base, for supporting the contact glass; and fixing screws, for detachably fixing the glass support members to the support base.
Abstract:
The present invention has as its object to provide a light source unit in which the relative portion of a detecting device and a condensing device is accurately determined, whereby the detecting device can reliably detect a laser beam, and a scanning optical apparatus using the same, and for this purpose, the present invention provides a scanning optical apparatus having a light source, a holding member for holding the light source, a deflecting device for deflecting light emitted from the light source, a detecting device for detecting the light deflected by the deflecting device, and a condensing lens for condensing the light incident on the detecting device, wherein the holding member positions the detecting device, and holds the condensing lens.
Abstract:
A modular image sensor array is disclosed which includes a plurality of tiles each of which has an image sensor mounted thereon. The tiles are mounted on a base plate such that the image sensors form a predetermined pattern. In order to precisely locate the tiles relative to each other and to provide for the replacement of defective tiles, the tiles are assembled in an interlocking pattern on the base plate. The top surface of the tiles is formed by ceramic plates, and electrical conductors for the image sensors are formed on one of the ceramic plates. A transparent cover is mounted over all of the image sensors in the array.