The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 2014
Filed:
Aug. 21, 2013
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Ken Iguchi, Shizuoka-ken, JP;
Isao Yahata, Shizuoka-ken, JP;
Takahiro Kawaguchi, Shizuoka-ken, JP;
Yoshiaki Sugizaki, Shizuoka-ken, JP;
Kikuo Mizutani, Shizuoka-ken, JP;
Hiroyuki Taki, Shizuoka, JP;
Hiroyuki Tsuchihashi, Shizuoka-ken, JP;
Chiaki Iizuka, Shizuoka-ken, JP;
Hidetoshi Yokochi, Shizuoka-ken, JP;
Toshiaki Oshiro, Shizuoka-ken, JP;
Hiroyuki Hazu, Shizuoka-ken, JP;
Yoichi Yamaguchi, Shizuoka-ken, JP;
Hiroyuki Sugiyama, Shizuoka-ken, JP;
Yuichi Saito, Shizuoka-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Abstract
According to an embodiment, a method for color erasing process includes the steps of: supplying a power to a heat source configured to heat a sheet having an image formed thereon using a color erasable material so as to cause heat generation as warming-up control; stopping the power supply to the heat source for a predetermined period of time in the warming-up control if the temperature of the heat source is increased starting from a temperature lower than a predetermined reference value that is lower than a color erasing temperature of the color erasable material and exceeds the predetermined reference value; performing maintenance control that is power supply control to maintain the temperature of the heat source at the target temperature; and performing, after the passage of the predetermined period of time, a color erasing process by the heat source.