Title:
Image reader
Document Type and Number:
Japanese Patent JP6156174
Kind Code:
B2
Abstract:
An image reading apparatus includes: a reading unit having a plurality of photoelectric conversion elements arranged in a main scanning direction; a white reference plate arranged to face the reading unit; a motor configured to move at least one of an original and the reading unit relative to each other; and a controller configured to: control the reading unit to read the white reference plate to obtain white reference data; determine, based on a driving velocity of the motor, whether relative position between the original and the reading unit has changed by a predetermined distance; and output a displacement signal in a case of determining that the relative position between the original and the reading unit has changed by the predetermined distance.
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Inventors:
Morita Keiichi
Isao Kubo
Kondo Hidemasa
Takahiro Ikeno
Isao Kubo
Kondo Hidemasa
Takahiro Ikeno
Application Number:
JP2014025176A
Publication Date:
July 05, 2017
Filing Date:
February 13, 2014
Export Citation:
Assignee:
Brother Industries, Ltd.
International Classes:
H04N1/19; G06T1/00; H04N1/028; H04N1/401
Domestic Patent References:
| JP200878985A | ||||
| JP2004135214A | ||||
| JP1290370A | ||||
| JP200774367A | ||||
| JP200822527A | ||||
| JP201197467A |