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:
Jan. 27, 2004
Filed:
Jun. 19, 2002
Joseph J. Furno, Rochester, NY (US);
R. Scott Lockhart, Webster, NY (US);
NexPress Solutions LLC, Rochester, NY (US);
Abstract
A method and structure that tests a process control patch in an electrophotographic printer by observing/creating a beginning recording medium lead edge location, which establishes a references point on a transportation device. Next, the invention tracks the position of the transport mechanism within the printer by starting a counter triggered by the medium lead edge signal or a virtual medium lead edge signal. The invention then prints the process control patch on the transportation device. The invention identifies positions of the transportation device and process control patch locations once the process control patch passes through a densitometer sensor. The invention establishes a patch testing area determined by a calculated patch trigger point and user configurable sample window parameters. The difference between the threshold-detected leading edge and trailing edge represents the width of the process control patch. The invention tests the calculated patch width for accuracy.