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. 09, 2019
Filed:
May. 09, 2018
Delphax Technologies Inc., Minnetonka, MN (US);
Harry Young, Toronto, CA;
Robert Stuart McCallum, Caledon, CA;
Cornelius Vandenberg, Richmond Hill, CA;
Delphax Technologies Inc., Minnetonka, MN (US);
Abstract
A media sheet drive has a continuous belt of a dielectric material for transporting sheet media supported on the belt in a transport direction. A launch mechanism is used to launch a sheet medium onto a top surface of the belt. A charging circuit including a charging head is used to charge a top surface of the sheet medium and the belt as the sheet medium is launched. Charging acts to generate an electrostatic tacking force to tack the sheet medium to the belt. To prevent high electric field near the belt top surface which might otherwise affect the printing process, a neutralizing circuit is positioned downstream of the charging circuit to reduce electric field near the top of the belt by balancing charge at the top and bottom of the belt while keeping the sheet medium tacked to the belt.