Image reading devices
AssigneeBrother Kogyo Kabushiki Kaisha
InventorYoshinori OSAKABE
Life of this patent
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Abstract
An image reading device includes a document mounting plate having a mounting surface and a rear surface, and an image reading unit. The image reading unit includes a photoelectric converter facing the rear surface, a case to hold the photoelectric converter, and at least one first rotating member and at least one second rotating member that rotate and receive a pressing force from the rear surface of the document mounting plate as the image reading unit moves. The image reading unit also includes a holder configured to support the case and at least one urging device positioned between the holder and the case. The at least one urging device urges the case toward the rear surface, and exerts an urging force opposite to the pressing force, and balances against the pressing force.
Claims13
An image reading device comprising:
- a document mounting plate comprising a mounting surface having a first side and a second side perpendicular to the first side, and a rear surface opposite the mounting surface and configured to receive a document to be mounted;
- and
- an image reading unit extending in a direction along a first side of the mounting surface, and the image reading unit comprises:
- a photoelectric converter positioned to face the rear surface, and configured to read an image on the document;
- a case configured to hold the photoelectric converter, the case extending along the first side of the mounting surface;
- at least one first rotating member and at least one second rotating member, wherein the at least one first rotating member and the at least one second rotating member are positioned at opposite ends of the case in a longitudinal direction thereof, and the at least one first rotating member and the at least one second rotating member are configured to rotate as the image reading unit moves, and the at least one first rotating member and the at least one second rotating member are configured to receive a pressing force from the rear surface of the document mounting plate as the image reading unit moves;
- a holder configured to support the case;
- and
- at least one urging device positioned between the holder and the case, wherein the at least one urging device is configured to urge the case toward the rear surface, and to exert an urging force in a direction substantially opposite to the pressing force, wherein the urging force is configured to balance against the pressing force.
Dependencies are inferred from the claim text.