Patent ID: 8628261
Filing Date: 2014-01-14
Classification: B41J,B65H

Abstract:
1. An apparatus comprising: a conveying mechanism that conveys a sheet; a platen that supports the sheet at a processing position; and a sensor unit including an image sensor that takes an image of the sheet so as to detect movement information of the sheet and an illumination unit that has a plurality of light-emitting elements illuminate the sheet, the sensor unit further including a substrate on which the image sensor and the plurality of light emitting elements are mounted, and a transparent cover that covers over the image sensor and the plurality of light emitting elements, wherein the sensor unit is embedded in the platen, the image sensor and the plurality of light emitting elements are disposed in a closed space surrounded by the transparent cover from above and the substrate from below, and the sensor unit takes an image from a back side of the sheet through the transparent cover.