An image reading apparatus including a feed mechanism configured to feed a sheet member; a scanner including a reading portion and being configured to read an image on a surface of the sheet member in synchronism with the feeding of the sheet member by the feed mechanism; a cleaning sheet comprising a single sheet including a cleaning portion configured to clean the reading portion, and a reference portion configured to be used in evaluating contamination of the reading portion; an evaluator configured to evaluate the contamination of the reading portion based on read data pertaining to an image of the reference portion of the cleaning sheet read by the scanner; and a controller configured to control the feed mechanism to execute a cleaning operation in which the cleaning sheet is fed so that the cleaning portion cleans the reading portion based on the evaluation of the evaluator.