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:
Dec. 07, 1982
Filed:
Jun. 03, 1981
Phillip E Staples, Warradale, AU;
Coulter Systems Corporation, Bedford, MA (US);
Abstract
A method of electrically transferring an image deposit formed of liquid dispersed electroscopic toner particles from an image-bearing photoconductor surface of a recording member to the surface of an image-receiving member in which an electrical transfer bias voltage is applied through the interface between the said surfaces in a direction normal to the said surfaces, and in which the said electrical transfer bias voltage is applied intermittently by successive pulses of opposite polarity and with successively increasing voltage, with the final pulse of an electrical polarity and magnitude to transfer the said imaging material to the said receiving member.