Patent ID: 9706070
Date: 2017-07-11
CPC Classifications: H04N

Claim:
1. An image reading apparatus, comprising: a reading unit configured to read an image of an original placed on a platen glass, and to output image data of the image; a processor and a memory; a cover which is openably and closably provided to the platen glass; a detector configured to detect open state/close state of the cover with respect to the platen glass; a sensor configured to detect whether the original is placed at a predetermined position of the platen glass, responsive to a detection of a close state of the cover; a determination unit configured to determine presence/absence of the original on the platen glass and to determine a size of the original based on a detection result of the sensor and on the image data output from the reading unit; a blank determination unit configured to determine whether the original is blank or not based on the image data within a determination area which is changeable according to the determined size of the original, responsive to an instruction to start reading of the original by the reading unit; and a control unit configured to cause a display to display information which indicates that the original is not on the platen glass responsive to a determination by the determination unit of the absence of the original on the platen glass and configured to cause a display to display information corresponding to the original being blank responsive to a determination by the determination unit of the presence of the original on the platen glass and a determination by the blank determination unit that the original is blank; wherein the processor and the memory operate to function as the determination unit, the blank determination unit, and the control unit.