Image reading apparatus and image forming apparatus

An image reading apparatus, comprising:

• a mounting part on which documents are mounted;
• an image reading unit for reading an image of a document at a predetermined reading position;
• an image storage unit for storing the image of the document read by the image reading unit;
• a document feeding unit for feeding, one document at a time, the documents mounted on the mounting part at a predetermined paper interval time, and discharging the documents via the reading position;
• an open/close cover for openably/closeably covering a feeding path on which the documents are fed by the document feeding unit;
• a final document determination unit for determining whether a fed document, which is the document that is being fed by the document feeding unit, is a final document among the documents mounted on the mounting part;
• a feed detection unit for detecting whether a leading edge or a trailing edge of the fed document has reached the reading position;
• an abnormality detection unit for detecting an occurrence of an abnormality in a case where a reading time limit, which is longer than the paper interval time, is set in advance, the final document determination unit determines that the fed document is not the final document, and the feed detection unit detects that the trailing edge of the fed document has reached the reading position, and when the feed detection unit does not detect that a leading edge of a subsequent document, which is a document that is fed subsequent to the fed document, has reached the reading position during a period from the detection of the trailing edge of the fed document reaching the reading position until the reading time limit has elapsed;
• and
• a recovery processing execution unit for executing, when an occurrence of an abnormality is detected by the abnormality detection unit, reading recovery processing of guiding a user to once again mount on the mounting part a plurality of documents which are the same as a plurality of documents that have been mounted on the mounting part before the feeding of documents by the document feeding unit is started, causing the document feeding unit to feed the documents, and causing the image reading unit to read an image of an abnormality-detected document, which is the fed document in which the occurrence of an abnormality has been detected by the abnormality detection unit;
• and
• a read image replacement unit for determining whether the image of the abnormality-detected document read in the reading recovery processing is the same as the image corresponding to the abnormality-detected document stored in the image storage unit before the execution of the reading recovery processing, and, when it is determined that the images are not the same, replacing the image corresponding to the abnormality-detected document stored in the image storage unit with the image of the abnormality-detected document read in the reading recovery processing.