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:
Jun. 23, 1992
Filed:
Aug. 31, 1990
Yoshikazu Naito, Gamagori, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
A method of detecting the toner density of a standard test toner image which comprises the steps of forming on the photosensitive drum a saturated test toner image from which the amount of diffused light is to be measured as a saturation level as well as the standard test toner image, and evaluating the measurement of the amount of diffused light from the standard test toner image in accordance with the measurement of the amount of diffused light from the saturated test toner image. In an image forming method or image forming apparatus which employs this toner density detecting method, the standard test toner image is formed on the photosensitive drum with a specified voltage of developing bias impressed, and an optimum developing bias voltage is calculated from the measurement of the amount of diffused light from the saturated test toner image and the measurement of the amount of diffused light from the standard test toner image. Such a process is carried out prior to an image forming operation.