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:
Aug. 27, 1996
Filed:
Feb. 24, 1994
Naoto Yamaguchi, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A follower roller 100 adapted to be rotated while coming in contact with a recording medium 120 is rotatably mounted on a driving roller shaft 114 of a driving roller 113, i.e., one of an opposing pair of driving rollers 111 and 113, and a rotation detector 115 for detecting the rotation of the follower roller 100 is disposed in the vicinity of the driving roller 113. A controller detects a malfunction of paper clogging by comparing the detection signal outputted from the rotation detector 115 with the driving signal outputted from the controller for rotationally driving a paper feeding motor. The follower roller 100 includes a ring-shaped magnet 121 including a plurality of magnet segments which are alternately magnetized in such a manner that adjacent magnet segments exhibit different magnetic poles with a radially extending boundary line as a boundary therebetween.