Patent ID: 7064874
Filing Date: 2006-06-20
Classification: H04N

Abstract:
1. A both-side document reading apparatus for reading images of one side surface and another side surface of a document transported from a document tray and moving, by emitting light toward the one side surface of the document in moving state by a first light source and by emitting light toward the other side surface of the document in moving state by a second light source, comprising: a first reading portion, disposed in a region for reading the one side surface of the document and provided with the first light source, for reading an image of the one side surface of the document; and a second reading portion, disposed in a region for reading the other side surface of the document and provided with the second light source, for reading an image of the other side surface of the document, wherein the light source of one of the first reading portion and the second reading portion which is disposed on a downstream side in the document transport direction is driven into a lighting state, after the light source of the other of the first reading portion and the second reading portion which is disposed on an upstream side in the document transport direction is driven into a lighting state, and before the document image reading is started by the other of the first reading portion and the second reading portion which is disposed on the upstream side in the document transport direction, and wherein the first light source and the second light source are turned off after the completion of reading of the transported document by the one of the first-reading portion and the second reading portion which is disposed on the downstream side in the document transport direction.