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:
May. 15, 1990
Filed:
Apr. 21, 1989
Andreas Bibl, Los Altos, CA (US);
John Higginson, Santa Clara, CA (US);
Deane Gardner, Cupertino, CA (US);
Rastergraphics, Inc., Sunnyvale, CA (US);
Abstract
A multipass, multicolor electrostatic plotter or printer has a continuous vacuum transport belt rotatable for substantially a complete revolution past a stationary writing head. The vacuum transport belt provides a vacuum to the entire contacting surface of a recording medium to stabilize and register the recording medium with a previously unattainable degree of invariance, thereby enabling information to be printed upon the recording medium simply by moving the transport belt with respect to a stationary electrostatic writing head disposed for contacting the recording medium across its entire width.