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:
Jul. 30, 2002
Filed:
Dec. 14, 2000
William A. Hameister, Penfield, NY (US);
Kenneth P. Friedrich, Honeoye, NY (US);
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
This invention provides an image-forming machine with a pulse densitometer that avoids the formation of artifacts on electrophotographic films. The image-forming machine may have a charger, an exposure machine, a toning station, a transfer charger, a fusing station, and a densitometer positioned next to a photoconductor. The densitometer may have an emitter, a collector, and a pulse apparatus. The densitometer provides one or more pulses to measure the toner and photoconductor densities. The pulsed emissions are essentially below the exposure threshold of electrophotographic films, especially those sensitive to the infrared spectral region.