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:
Dec. 19, 1989
Filed:
Mar. 01, 1988
Takafumi Tottori, Osaka, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
A multi-color image forming apparatus including an electrostatic latent image support member, a plurality of developing devices, an image forming device for forming an electrostatic latent image won the support member, a selector for selecting one of the developing devices, a pattern forming device for forming a latent image pattern on the support member separately from the electrostatic latent image in response to selection from an upstream developing device to a downstream developing device in a rotational direction of the support member by the selector and a control device which performs control such that the latent image pattern is located forwardly of the electrostatic latent image in the rotational direction of the support member, whereby after the latent image pattern has been passed through the upstream and downstream developing devices, the electrostatic latent image is developed by the downstream developing device.