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:
Nov. 12, 2019
Filed:
Apr. 25, 2012
Norio Tomita, Osaka, JP;
Yasuaki Fukada, Osaka, JP;
Hidetoshi Atsumi, Osaka, JP;
Koji Wakamoto, Osaka, JP;
Atsushi Ogo, Osaka, JP;
Ryosuke Sakai, Osaka, JP;
Norio Tomita, Osaka, JP;
Yasuaki Fukada, Osaka, JP;
Hidetoshi Atsumi, Osaka, JP;
Koji Wakamoto, Osaka, JP;
Atsushi Ogo, Osaka, JP;
Ryosuke Sakai, Osaka, JP;
SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;
Abstract
The image forming apparatus includes: a paper feed unit; a print unit; a registration roller; a sheet leading end sensor provided downstream, in a transport direction of the recording paper, of the registration roller; a time measuring unit for measuring a time from a start point of transportation of the recording paper by the registration roller to a point of detection of the leading end of the recording paper by the sheet leading end sensor; a memory unit for storing a reference image forming time and a reference time; a print control unit; and an arithmetic unit for obtaining a difference between the reference time and the time detected by the time measuring unit. The print control unit adjusts the length of the image forming period in accordance with the adjusted image forming time determined based on the difference obtained by the arithmetic unit and the reference image forming time.