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:
Apr. 06, 1993
Filed:
Nov. 01, 1991
Vittorio R Castelli, Yorktown Heights, NY (US);
Stephen T Chai, Rancho Palos Verdes, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A belt receptor module for a color printer isolates disturbances such as impulsive and high-frequency force disturbances caused by entrance of a recording medium into a transfer nip of a transfer station. The belt receptor module includes a belt receptor positioned about a plurality of spaced rollers. A transfer station is located adjacent an area of the belt receptor. A tension roller is located adjacent the belt receptor on either side of the transfer station. The tension rollers each articulate about an appropriate axis to enable the belt receptor to enter a subsequent roller at angle of approximately 90.degree. to its axis without generating lateral forces. Each tension roller is movable along a different line to create a tension level therein, each tension level being different from the other tension level. The tension levels generated by the tension rollers do not substantially change with the position of said rollers and, thus, provide relief from the impulsive and high-frequency force disturbance caused by the entrance of a recording medium into a transfer nip of the transfer station. The isolation of the disturbance enables proper registration of the color separations while avoiding motion-induced artifacts.