Patent ID: 7317560

Claim:
An image reading apparatus having a reflection original light source, a transparent original light source, and an image reading unit capable of reading a reflection original irradiated by said reflection original light source and a transparent original irradiated by said transparent original light source, comprising: an original table where the reflection original is to be placed; and a holding unit, attached at a predetermined position of said original table, adapted to hold the transparent original, wherein said holding unit holding the transparent original is capable of being selectively set at either one of first and second positions while said holding unit is kept attached to said original table without being detached from said original table, wherein in the first position, one side of the transparent original held by said holding unit faces said original table and said holding unit is in an area inside a reflection original reading range on said original table, and wherein in the second position, the other side of the transparent original held by said holding unit faces said original table and said holding unit is in an area outside the reflection original reading range on said original table.