Patent ID: 7777922

Claim:
An image reader comprising: a platen glass having a placing surface on which an original on which an image is formed is placed; a close-contact-type image sensor having a plurality of reading elements configured to read the image, the plurality of reading elements being disposed along the main scanning direction; a sensor support member disposed facing the platen glass on a side of the platen glass opposite to a side at which the original is placed, the sensor support member being configured to support the close-contact-type image sensor; a support member moving unit configured to move the sensor support member in a sub scanning direction, the sub scanning direction being parallel to the placing surface and perpendicular to the main scanning direction; and a distance adjusting unit configured to adjust a distance between the platen glass and the close-contact-type image sensor using a slidable spacer, the spacer being configured to slide in contact with spacer contact members to adjust the distance between the platen glass and the close-contact-type image sensor, the spacer contact members being disposed parallel to the main-scanning direction to sandwich the close-contact-type image sensor therebetween.