White-out for paper reuse

Details White-out for paper reuse White-out for paper reuse

2008-12-18

2011-11-01

Gray, David (Department: 2852)

Electrophotography

Image formation

Fixing

C347S155000, C347S212000, C430S124130

Reexamination Certificate

active

08050613

ABSTRACT:
A method of reusing a sheet includes receiving a sheet having a printed image, scanning a new image, determining whether the sheet is acceptable for reuse, covering at least one portion of the printed image on the sheet with a white-out toner via a white-out unit, fusing the white-out toner to the at least one portion of the sheet, printing a new image onto the sheet, and performing the receiving, scanning, determining, covering, fusing and printing operations on the sheet a plurality of times. A printing device for covering and printing over a printed image includes a receiving subsystem configured to receive a sheet, a processing module configured to determine whether the sheet is acceptable for reuse, and a fuser module configured to fuse a white-out toner.

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Sudhakar Madhusoodhanan et al, UV Curable High Opacity Ink Jettable White Ink, Hexion Special Chemicals, RadTech e/5 2006 Technical Proceedings, 2006.
Hexion Specialty Chemicals, “HexiJet UV Curable White Inkjet Ink: Technical Data Sheet”; HCD-2717 (Rev. Oct. 22, 2008), 2008.
www.sunchemical.dev01.10floor.com/press—2003—1—1090856727441.aspx; Sun Chemical Press Release; “SunJet Launches Two UV Inkjet Technologies”, Fort Lee, NJ Sep. 29, 2003.

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