Patent ID: 7903296
Filing Date: 2011-03-08
Classification: H04N

Abstract:
1. An image scanner comprising: a first scanning means arranged to scan a first surface of an original; a second scanning means arranged to scan a second surface of the original; a conveyance path along which the first and second scanning means are disposed; an inversion means operable to invert an original passing through the conveyance path, the inversion means being operable to guide the inverted original to pass through at least part of the conveyance path again; a storage means which can store image data from at least one of the scanning means; a size detection means which is operable to detect an original size; and a determination means which is operable to determine whether or not image data relating to an original of the size detected by the size detection means can be stored in the storage means; wherein the image scanner further comprises a control means configured to set operation in a first mode in the case that the determination means determines that the image data relating to the original can be stored in the storage means, in which first mode the first and second scanning means respectively scan the first surface and the second surface of an original passing through the conveyance path, and the control means is configured to set operation in a second mode in the case that the determination means determines that the image data relating to the original cannot be stored in the storage means, in which second mode the first scanning means scans the first surface of the original and the first scanning means scans the second surface of the original inverted by the inversion means.