Patent ID: 7154641

Claim:
An image scanning apparatus comprising: a one-dimensional image sensor arrangement including a one-dimensional sensor, at least part of the arrangement moving relatively in a slow scanning direction with respect to a document while scanning an image of the document in a fast scanning direction to obtain two-dimensional information on the document image, wherein the one-dimensional image sensor has N number of photosensitive element arrays arranged parallel to the fast scanning direction, N being a positive integer greater than 1, and the N photosensitive element arrays simultaneously read N different lines of information of the document image; and wherein a scanning speed in the slow scanning direction is multiplied by a factor of M without decreasing image scanning resolution when a moving speed of the moving part of the one-dimensional image sensor arrangement in the slow scanning direction is set to M times as high as an ordinary speed at which the resolution in the slow scanning direction becomes equal to the resolution in the fast scanning direction, M being a positive number.