Browse Prior Art Database

LINE PRINTER

IP.com Disclosure Number: IPCOM000024009D
Original Publication Date: 1979-Jun-30
Included in the Prior Art Database: 2004-Apr-01
Document File: 2 page(s) / 325K

Publishing Venue

Xerox Disclosure Journal

Abstract

Line printer 1, shown in plan view, is a low-cost printer mechanism that is completely housed in a cartridge 12, similar to present day ribbon cartridges employed in word processors. A thin, dielectric ribbon 3, such as a transparent polyester film strip, is adapted to sequentially pass through a charge deposition station 4, a development station 5, a transfer station 6 and a cleaning station 7. Alternatively, pay-'out and take-up spools may be provided eliminating the need for a cleaning station 7.

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XEROX DISCLOSURE JOURNAL

LINE PRINTER Roy 3. Lahr David D. Thronburg

Proposed Classification
U.S. CL 346/153 mt. CL GOld 15/06

5

2

Line printer 1, shown in plan view, is a low~cost printer mechanism that is completely housed in a cartridge 12, similar to present day ribbon cartridges employed in word processors.

A thin, dielectric ribbon 3, such as a transparent polyester film strip, is adapted to sequentially pass through a charge deposition station 4, a development station 5, a transfer station 6 and a cleaning station 7. Alternatively, pay-'out and take~up spools may be provided eliminating the need for a cleaning station 7.

The printing sequence starts with thin width ribbon 3 being transported between metallic drive roll 8 and an array of styli 9. The roll 8 may be held at ground potential with negative charge pulses applied to the styli 9. The stylus array 9 may comprise nine styli capable of printing 7 x 9 matrix characters by incrementing the ribbon 3 past the stylus array in seven discrete steps, with each increment being equal to or slightly less then interstylus separation distance. Alphanumeric characters are generated by electrostatic deposition of charge in a dot matrix by proper addressing of the stylus array 9 and increment of the dielectric ribbon 3.

Volume 4 Number 3 May/3une 1979 371

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LINE PRINTER (Cont~d)

The ribbon 3 supporting the latent alphanumeric image is transported to th...