Image-reading device, communication device, and image-forming device

An image-reading device, comprising:

• an operation part for receiving an input of a setting relating to a job, and receiving a starting operation for starting the job;
• a document-loading tray on which a document is loaded;
• a document transportation part for transporting the document loaded on the document-loading tray to a reading position during execution of the job;
• an image-reading part for reading the document passing through the reading position during execution of the job;
• a document size sensor for detecting the size of the document loaded on the document-loading tray;
• and
• a controller for detecting the size of the document on the basis of an output value from the document size sensor when the document is loaded on the document-loading tray, starting the job when the starting operation is performed on the operation part, and controlling the execution of the job in accordance with the setting received by the operation part prior to the start of the job;
• the controller detecting, after the starting operation is performed on the operation part, the size of the document loaded on the document-loading tray, and when there is a difference between the size of the document detected prior to the starting operation and the size of the document after the starting operation, temporarily stopping the job without resetting the setting received by the operation part prior to the start of the job.