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Browse Prior Art Database

Nonimpact Printer

IP.com Disclosure Number: IPCOM000090024D
Original Publication Date: 1969-Jan-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Dayger, JE: AUTHOR

Abstract

A nonimpact printer utilizes a continuous belt 10 mounted on rolls 11 and 12. Belt 10 carries single or multiple columns of type characters 14 on the inner face either in a staggered form so that only one character is aligned in a particular column at one time or vertically aligned so that they are all aligned at one time. The characters are either raised or flush mounted in the belt and are of an electrically conductive material. Bar electrodes 15, one for each print line, are spaced from belt 10 so as to allow room for a recording web 16 or specially treated paper to pass between them, being advanced in a vertical plane.

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Nonimpact Printer

A nonimpact printer utilizes a continuous belt 10 mounted on rolls 11 and 12. Belt 10 carries single or multiple columns of type characters 14 on the inner face either in a staggered form so that only one character is aligned in a particular column at one time or vertically aligned so that they are all aligned at one time. The characters are either raised or flush mounted in the belt and are of an electrically conductive material. Bar electrodes 15, one for each print line, are spaced from belt 10 so as to allow room for a recording web 16 or specially treated paper to pass between them, being advanced in a vertical plane.

Emitter 18, mounted on roll 12, provides timed pulses for controls 19 comparing the characters with data stored in a buffer, so as to control timed energization of the electrodes. With staggered characters, an emitter, not shown, can be used to energize the different electrodes 15 in sequence as the character in the particular line is aligned.

With vertically aligned characters, as shown, electrodes 15 can be connected directly to the control unit for parallel energization of any or all electrodes as required by a compare operation. The energization is at a sufficient voltage to produce an electrically charged character spot on the web, which can be subsequently treated or used to transfer a charge to a paper for producing a latent image.

As the document is moved vertically between the belt and electrodes, each line is exposed...