Use of xerographic images and a full-width array sensor for multiple control system sensing

US8126359B2 · kind B2 · utility

Assignee

• Xerox Corporation · US

Inventors

• James P. Calamita · Spencerport, US
• Michael J. Martin · Saxby, AU
• Douglas R. Taylor · Ashford, GB
• Shawn Updegraff · Fairport, US
• Brian R. Conrow · Webster, US
• David C. Craig · Pittsford, US

Key dates

• Filing date: Jul 15, 2008
• Grant date: Feb 28, 2012
• Expiry date: Mar 30, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G2215/0161
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A method for monitoring an image printing system that prints color images on an image bearing surface movable in a process direction is provided. The method includes placing marking material to form a row comprising a plurality of registration marks on the image bearing surface, wherein each row of registration marks extends along a cross-process direction transverse to the process direction; detecting a position of each registration mark using a linear array sensor extending in the cross-process direction, wherein the position of each registration mark is detected in both the process and cross-process direction; determining a process direction misregistration between the registration marks of each row in the process direction and cross-process direction misregistration between registration marks from each of the rows.