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:
Mar. 07, 2000
Filed:
Oct. 30, 1998
Fujitsu Limited, Kawasaki, JP;
Abstract
An image recording apparatus includes a photosensitive drum on which an electrostatic latent image is formed by laser beam irradiation from an optical unit. A developing unit, which receives toner from a toner feeder and is provided with a toner agitator, supplies toner onto the drum for converting the latent image to a visible image. A toner sensor detects the concentration of the toner within the developing unit for output of a corresponding detection signal. A toner supply controller controls the toner feeder by comparing the output of the toner sensor with a varying standard voltage which varies linearly from a peak level to a steady level. An exposure start controller causes the optical unit to start irradiating the photosensitive drum with light after the rotation of the drum is stabilized but before the output of the toner sensor reaches the peak level.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile