IMAGE READING DEVICE AND IMAGE FORMING DEVICE

摘要

An image reading device includes: a transport path; a reading member that reads an image of a document at a reading position on the transport path, and that includes a light source movable with respect to the reading position in a sub scanning direction which extends along a document transport direction and being capable of reading at positions in the vertical scanning direction; a reflecting member that has a reflecting surface that faces the reading member; a movement controller that controls the reading member so as to move the light source with respect to the reading position before the document is transported to the reading position when the reading member reads the image; a dust determination unit that determines presence of dust; and an announcement member that announces presence of dust to a user when dust is present.

主权项

1. An image reading device comprising:
a transport path through which a document is transported; a reading member that reads an image of the document at a reading position set in advance on the transport path, the reading member including a light source that is movable with respect to the reading position in a sub scanning direction which extends along a document transport direction and being capable of reading at a plurality of positions in the sub scanning direction; a reflecting member that has a reflecting surface that faces the reading member over a range that includes the reading position and that extends to a position that is different from the reading position in the sub scanning direction, a difference between an amount of light reflected from the reflecting surface and an amount of light reflected from the document being set to be larger than a difference in amount of light set in advance; a movement controller that controls the reading member so as to move the light source with respect to the reading position before the document is transported to the reading position in a case where the reading member reads the image of the document; a dust determination unit that determines presence of dust on a basis of an image read when the light source is moved; and an announcement member that announces presence of dust to a user in a case where it is determined that dust is present.