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US 4,899,192 AGranted
Image information apparatus
AssigneeSharp Kabushiki Kaisha
InventorYukitoshi Fujita
Life of this patent
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Abstract
An image formation apparatus is operable in two different modes. The selection of a mode is made automatically, depending on the size of the document to be scanned. If the document is bulky like a book and is placed on a document table by opening an automatic document feeder or if it is or sheet-like but long and cannot be wrapped around a document winding cylinder, the optical system is moved to scan the document. If the document is sheet-like and sufficiently short, it is wrapped around the cylinder and is scanned by a stationary optical system while the cylinder is rotated.
Claims6
An image formation apparatus comprising
- a housing,
- an optical system,
- an automatic document feeder with a document supplying section at one end in the upper part of said housing,
- an automatic document winding device at the other end of said housing with a drum for wrapping a document therearound,
- a document size sensor for detecting the size of a document supplied from said document supplying section relative to the size of said drum, and
- selecting means capable of automatically selecting on the basis of document size detected by said document size sensor between a first mode of operation wherein a document is transported by said automatic document feeder and said optical system is moved to scan said document and a second mode of operation wherein a document is transported by said automatic document winding device and wherein said optical system remains fixed and said drum is rotated to scan said document.
3 more elements
Dependencies are inferred from the claim text.