Image scanner and image scanning method

摘要

An image scanner includes a transparent plate, a scanning device, a driving device, a positioning member, a light absorbing portion and a white reference portion. The transparent plate has an original placing surface. The scanning device irradiates an original with light by means of a light source and scans reflected light from the original. The driving device reciprocates the scanning device along the transparent plate. The positioning member positions the original placed on the original placing surface of the transparent plate. The light absorbing portion, which is disposed on the original placing surface side of the positioning member and at substantially a central portion of the positioning member in moving directions of the scanning device, absorbs ambient light entering to the original placing surface side of the positioning member through the transparent plate. The white reference portion is provided to the original placing surface side of the positioning member.

主权项

1. An image scanner, comprising:
a single transparent plate comprising a first area and a second area; a scanning device configured to scan a first original placed on the first area while moving along the first area in a first direction, and to scan a second original being conveyed along the second area while stopping at a position directly below the second area; a conveying device configured to convey the second original along the second area; and an extending member disposed on the single transparent plate and extending in a second direction perpendicular to the first direction, the extending member comprising a white portion facing the single transparent plate; and a guide member extending from the single transparent plate and including an inclined portion inclined upward relative to an upper surface of the single transparent plate, the guide member being configured to guide the second original scanned by the scanning device in a direction away from the upper surface of the single transparent plate, wherein the extending member and the inclined portion of the guide member define the second area therebetween.