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. 09, 1993
Filed:
Sep. 24, 1991
Applicant:
Inventors:
Naotoshi Kawai, Toyokawa, JP;
Kazunobu Maekawa, Toyokawa, JP;
Assignee:
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355271 ; 355309 ;
Abstract
An image forming apparatus comprising a rotatable transfer drum, chucking member provided at the transfer drum for chucking a transfer paper on the transfer drum and a sensor provided in the vicinity of the transfer drum for detecting the light passing through the transfer drum. In the image forming apparatus, the above single sensor is operable for detecting mischucking of the transfer paper and for detecting whether the transfer paper is a plain paper or OHP paper.