IMAGE READING APPARATUS CAPABLE OF OUTPUTTING A PLURALITY OF TYPES OF IMAGE DATA

In an image reading apparatus, a control device controls a reading unit to start reading a document; stores first image data in a storage unit on a block-to-block basis to sequentially store each of a plurality of first blocks of data, the plurality of first blocks included in the first image data; performs, each time each first block of data is stored in the storage unit, a plurality of image processing on the first block of data to generate a second block of data including a plurality of types of data different from one another; and deletes one of the plurality of first blocks of data from the storage unit after completion of the plurality of image processing on the one of the plurality of first blocks of data before completion of the plurality of image processing on all of the plurality of first blocks of data.