Title:
紙種判別装置及び紙種判別装置を用いた画像形成装置
Document Type and Number:
Japanese Patent JP5186685
Kind Code:
B2
Abstract:
A paper type determination device of the invention drives plural light emitting points different from one another and having sequentially increasing distances from a reference point to emit light in such a manner that each is identified for irradiating one surface of a sheet of paper subjected to determination. A photodetection device set at a specific detection field of view having the center at the reference point is disposed on the other surface side of the sheet of paper, and it receives light having passed through the sheet of paper from the respective light emitting points at positions on inside and outside of the detection field of view to detect intensity of light for each light emitting point. A diffusing characteristic of the sheet of paper is obtained on the basis of the intensity of light from each light emitting point detected by the photodetection device, and a paper type is determined on the basis of the diffusing characteristic.
Inventors:
Yoshinori Honmiya
Application Number:
JP2007249456A
Publication Date:
April 17, 2013
Filing Date:
September 26, 2007
Export Citation:
Assignee:
Toshiba Corporation
TOSHIBA TEC CORPORATION
TOSHIBA TEC CORPORATION
International Classes:
B65H7/02; G01N21/59; G01N21/49; G03G15/00; G03G21/14
Domestic Patent References:
| JP200623288A | ||||
| JP587733A | ||||
| JP4217542A | ||||
| JP635234A | ||||
| JP2001341895A | ||||
| JP2006117363A | ||||
| JP200575469A | ||||
| JP25055U | ||||
| JP2001330555A | ||||
| JP200445160A | ||||
| JP2006250584A | ||||
| JP200570508A |
Foreign References:
| US20030030785 | ||||
| US6497179 |
Attorney, Agent or Firm:
Amagi International Patent Office