Patent ID: 8089664
Filing Date: 2012-01-03
Classification: H04N

Abstract:
1. An image reading device comprising: a conveying unit configured to convey a recording medium on a first path; a first transmissive portion having a first surface that allows the recording medium to pass the first surface; a second transmissive portion having a second surface on which a recording medium is allowed to be placed; an image reading unit comprising a line sensor extending in a first direction and movable on a second path, the second path continuously extending below the first transmissive portion and below the second transmissive portion, the image reading unit configured to read an image of the recording medium passing the first surface and an image of the recording medium placed on the second surface; a driver configured to move the image reading unit on the second path; and a control unit configured to drive the driver to control a movement of the image reading unit, wherein the second path below the second transmissive portion extends along the second surface in a second direction perpendicular to the first direction, wherein a relative distance of a third direction perpendicular to the first and second directions between the line sensor and the first surface changes in the second path below the first transmissive portion, and wherein the control unit is operable to perform: a first reading mode in which the reading unit is positioned at a first reading position and reads the image of the recording medium passing the first surface, the relative distance at the first reading position is a first relative distance; and a second reading mode in which the reading unit is positioned at a second reading position and reads the image of the recording medium passing the first surface, the relative distance at the second reading position is a second distance different than the first distance.