Braille printing apparatus
Patent 5240335 Issued on August 31, 1993. Estimated Expiration Date: 
January 24, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 24, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3608488 3781802 3839028 3850627 3924019 Xerographic toner composition Electrostatic printing method using heat sensitive thermal ink transfer Apparatus for performing raised dot formations Image recording material capable of forming three-dimensional images Image recording material for recording images in three dimensions and three-dimensional image processing method using same InventorsApplicationNo. 825484 filed on 01/24/1992US Classes:400/109.1, Braille118/624, Control of deposition of coating material or selective area, e.g., pattern or edge effect427/145LATENT IMAGE FORMED OR DEVELOPEDExaminersPrimary: Eickholt, Eugene H.Attorney, Agent or FirmInternational ClassB41J 003/02Foreign Application Priority Data1991-05-09 JPAbstractA braille printing apparatus utilizes non-impact printing technology to provide high-speed, high-volume production of printed braille materials. The document carrying the information to be printed in braille is scanned and read under the control of a computer. The computer outputs the object information in the form of control signals. In accordance with these control signals, a write head projects a beam of light to form a latent image on the charged surface of a rotating drum. Toner is used to develop the image and transfer it to paper, where it is fused. A coarse-grain toner is used, and is applied in a sufficient quantities thereby produce printed braille materials.Other References
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