Browse Prior Art Database

High Speed Laser Printer

IP.com Disclosure Number: IPCOM000075240D
Original Publication Date: 1971-Aug-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 25K

Publishing Venue

IBM

Related People

Cubbon, AJ: AUTHOR

Abstract

Printing is done by using a high-speed laser beam to scorch a symbol on the surface of a document. Laser power required as well as print information can be obtained at a first read or punch station, stored in a buffer, and used to control the printing at a second station, such as in an interpreter.

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High Speed Laser Printer

Printing is done by using a high-speed laser beam to scorch a symbol on the surface of a document. Laser power required as well as print information can be obtained at a first read or punch station, stored in a buffer, and used to control the printing at a second station, such as in an interpreter.

Characters 3 are etched onto stencil belt 2 and selected by means similar to that used by chain printers. Belt 2 consists of a flexible transparent substrate with characters 3 etched i to a reflective veneer coating. Mirror 4 addresses the column on document 1 which is to have data printed. When the proper character is in position, timing mirror 7 is pivoted to permit laser beam 6 to be reflected by scanning mirror 4 through stencil belt 2 and onto document 1 to scorch the character 8 thereon.

After printing, mirror 7 is pivoted to position 70 and mirror 4, which may be attached to a belt or chain 9, is moved to the next printing position 40. An alternative method of addressing printing positions is to use a plurality of mirrors 44 in lieu of a single mirror 4 attached to a chain 9. The mirrors 44 are pivotably mounted so that they can direct the laser beam 6 in several directions 61, 62, 63 to print on several adjacent column positions. If a pulse laser 5 is used, timing mirror 7 can be eliminated.

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