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:
Sep. 06, 1977
Filed:
Nov. 03, 1975
Charles Escom Branham, Boulder, CO (US);
Thomas Dean Steury, Longmont, CO (US);
John Maury Woodward, Boulder, CO (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A dual mode xerographic copier/printer is selectively operable to form a latent image of an original document on a photoconductor, or to raster-scan the photoconductor with a laser printing beam which is under the control of a binary-data-defined image to thereby form a latent image thereof. The latent image, whether it is formed in the copy mode or the print mode, is toner developed. The developed image is then transferred to a sheet of copy paper. This copy paper may be of variable size. In the copy mode, the laser printing beam is controlled to erase the photoconductor bordering that photoconductor area which will coincide with the sheet during transfer, i.e., bordering the latent image of the original document. In the print mode, a data processor formats the binary-data-defined image to fit into a photoconductor area compatible with the size of the copy paper. The resulting electrical signals then control the laser printing beam to erase the entire photoconductor, exclusive of the binary-data-defined image.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile