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US 10,805,492 B2Granted
Image reading device
AssigneeFuji Xerox Co., Ltd.
InventorsMasaki Hachisuga, Shota Funaki
Life of this patent
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Abstract
An image reading device includes at least one reference portion that is provided in a reading area of a reading unit provided with a moving mechanism, a memory unit that stores, as an initial value, positional data of the reference portion that is read by the reading unit, an acquisition unit that reads the positional data of the reference portion and acquires a displacement amount of the read positional data from the initial value, and an error handling unit that performs error handling when the displacement amount exceeds a predetermined value.
Claims9
An image reading device comprising:
- at least one reference portion that comprises a reference line and is provided in a reading area of a reading unit that comprises an image sensor and includes a moving mechanism;
- a memory that stores, as an initial value, positional data of the reference portion that is read by the reading unit;
- and
- a processor, configured to:
- read the positional data of the reference portion and acquires a displacement amount of the read positional data from the initial value;
- and
- correct, based on the displacement amount, read data obtained by reading a reading target,
- wherein the reference portion includes a first reference portion that is provided on a first side of a scanning direction of the reading unit and a second reference portion that is provided on a second side of the scanning direction of the reading unit, and
- wherein, when the processor corrects the read data, which has been read between the first reference portion and the second reference portion, based on the displacement amount, the processor corrects the read data by using a complemented displacement amount complemented based on a relationship between a separation distance from the first reference portion to the second reference portion and a distance from the first reference portion or the second reference portion to the read data to be corrected.
6 more elements
Dependencies are inferred from the claim text.