IMAGE READING APPARATUS, IMAGE READING METHOD, AND IMAGE FORMING APPARATUS

摘要

According to one embodiment, an image reading apparatus includes an original document table on which an original document is placed, a detection light source configured to be disposed above the original document table, an irradiation optical system configured to irradiate the original document table with light from the detection light source from a lower surface side of the original document table, and a light guiding optical system configured to guide light reflected from the original document table toward a light detector.