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:
Feb. 10, 2015
Filed:
Nov. 01, 2013
Koki Sakano, Kanagawa, JP;
Hiroshi Kubo, Kanagawa, JP;
Shinya Kitaoka, Kanagawa, JP;
Takeshi Akai, Kanagawa, JP;
Hidehiko Fujiwara, Tokyo, JP;
Atsushi Kanaya, Kanagawa, JP;
Fumiyuki Heishi, Kanagawa, JP;
Takuya Sano, Kanagawa, JP;
Koki Sakano, Kanagawa, JP;
Hiroshi Kubo, Kanagawa, JP;
Shinya Kitaoka, Kanagawa, JP;
Takeshi Akai, Kanagawa, JP;
Hidehiko Fujiwara, Tokyo, JP;
Atsushi Kanaya, Kanagawa, JP;
Fumiyuki Heishi, Kanagawa, JP;
Takuya Sano, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
According to an embodiment, an ADF that feeds and conveys original document sheets one sheet by one sheet from a tray unit to a read position on a document glass by motive power from a driving motor includes: an opening/closing unit operable to open and close relative to the document glass; an open/close detection sensor that detects an open/closed state of the opening/closing unit; a first interlock switch, which is arranged between a power source and the driving motor, that is on when the opening/closing unit is closed, and vice versa; and a control circuit that determines the open/closed state of the opening/closing unit based on detection outputs of the first interlock switch and the open/close detection sensor. The control circuit determines that the opening/closing unit is in the closed state when the first interlock switch is on and the open/close detection sensor is detecting the closed state.