Image reading device and image reading method
An image reading device and image reading technology, which are applied in the directions of image communication, electrical components, etc., can solve problems such as the current position change of the backing, and achieve the effect of suppressing the increase in the size and cost of the device
Active Publication Date: 2019-03-01
PFU LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, when vibration, impact, etc. are applied to the image reading device, the current position of the backing may change, and even if the motor is driven by a constant amount, the backing may not move to an appropriate position.
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[0047] Hereinafter, a document conveying device according to an aspect of the present invention will be described with reference to the drawings. However, it should be noted that the technical scope of the present invention is not limited to these embodiments, and includes the inventions described in the claims and their equivalents.
[0048] figure 1 It is a perspective view showing a document conveying device 100 configured as an image scanner.
[0049] The document conveying device 100 is an example of an image reading device. The document conveying device 100 includes an upper housing 101, a lower housing 102, a document table 103, a discharge table 105, a plurality of operation buttons 106, a display device 107, and the like.
[0050] The upper frame 101 is arranged at a position covering the upper surface of the document conveying device 100, and can be opened and closed when a document jams, cleaning the inside of the document conveying device 100, etc., and is engaged to the...
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The present invention relates to an image reading device and an image reading method, and provides an image reading device and an image reading method capable of setting a backing at an appropriate position with higher precision while suppressing an increase in the size and cost of the device and the control program. The image reading device (100) has an imaging unit (119) for imaging a document, a backing (204) having a white facing surface, and the imaging unit can A driving unit (231) for switching between a facing position where a white reference image is acquired and a non-facing position where the imaging unit can acquire a black reference image by shifting the facing surface from the facing position, and a backstage operation performed by the driving unit. The control unit (151) for the switching control of the backing determines, as a non-facing position, a position where the backing is moved by a predetermined amount from a position where the white reference image is detected from the image acquired by the imaging unit.
Description
Technical field [0001] The present invention relates to an image reading device and an image reading method, and more particularly to an image reading device and an image reading method that perform backing switching control. Background technique [0002] Generally, an image reading device such as a scanner has a backing at a position opposed to an imaging device that photographs a document, and by switching the position of the backing, the background color of the document is changed to white or black. The image reading device drives the motor to rotate the backing, thereby switching the position of the backing. As a method of installing the backing at a predetermined position, several methods are known. [0003] For example, the image reading device has a position sensor that detects the position of the backing, and when the position sensor detects that the backing has moved to a predetermined position, the driving of the motor is stopped and the backing is stopped at the predete...
Claims
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IPC IPC(8): H04N1/12
CPCH04N1/125H04N1/4076H04N1/00909H04N1/02815H04N1/193H04N2201/0081H04N1/40056
Inventor 吉田祥悟田村涉
Owner PFU LTD