Invention Grant
- Patent Title: Ultrasonic wave control device and recording material determining device
- Patent Title (中): 超声波控制装置及记录材料测定装置
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Application No.: US12966973Application Date: 2010-12-13
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Publication No.: US08875581B2Publication Date: 2014-11-04
- Inventor: Tomoharu Nakamura , Norio Matsui , Shoichi Koyama , Tsutomu Ishida , Shun-ichi Ebihara
- Applicant: Tomoharu Nakamura , Norio Matsui , Shoichi Koyama , Tsutomu Ishida , Shun-ichi Ebihara
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon USA, Inc. IP Division
- Main IPC: G01N29/04
- IPC: G01N29/04 ; G03G15/00
Abstract:
In a device for detecting a basis weight of a recording material, an initial measurement is performed by using ultrasonic waves that have passed through the recording material, and the recording material is roughly classified first. By changing the number of pulses of the driving signal in accordance with a result of the initial measurement, the basis weight of the recording material can be detected by using ultrasonic waves suitable for the recording material, so that the detection accuracy of the basis weight of the recording material can be increased.
Public/Granted literature
- US20110142461A1 ULTRASONIC WAVE CONTROL DEVICE AND RECORDING MATERIAL DETERMINING DEVICE Public/Granted day:2011-06-16
Information query
