1
Gordon B Barrus, Richard E Schumaker, Andrew W Edwards, Kevin Mark Smith, Duane C Gibbs, Rudy Concepcion Jr: RFID tag, antenna, and printer system. Printronix, MacPherson Kwok Chen & Heid, Tom Chen, May 31, 2005: US06899476 (81 worldwide citation)

An RFID label with embedded tag is passed through an RFID antenna in a printer system, where the RFID antenna allows a roll of such labels to pass in close proximity to the antenna and still allow each individual RFID tag to be read and/or programmed. The RFID antenna module is formed with a transmi ...


2
Gordon B Barrus, Leo J Emenaker, Raymond F Melissa: Printer system. Printronix, Fraser and Bogucki, March 2, 1976: US03941051 (73 worldwide citation)

A dot matrix printer system utilizes a reciprocating shuttle having a plurality of hammer elements and externally energized hammer controls mounted with the hammers on the shuttle. Each hammer scans a number of dot printing positions within a dot matrix line, and is energized at a high repetition ra ...


3
Gordon B Barrus, Kevin P Moore: Thermal printer and drive system for controlling print ribbon velocity and tension. Printronix, George F Bethel, July 4, 2000: US06082914 (59 worldwide citation)

A thermal printer having a supply of media with a rotatable platen on which the media is moved for printing by a thermal printing head. A supply spindle supplies print ribbon from a supply spool mounted thereon, and a take-up spindle takes up the used print ribbon on a take-up spool. The spindles ar ...


4
Gordon B Barrus, Richard E Schumaker, Andrew W Edwards, Duane C Gibbs, Kevin Mark Smith, Rudy Concepcion Jr: RFID tag, antenna, and printer system. Printronix, MacPherson Kwok Chen & Heid, Tom Chen, August 16, 2005: US06929412 (48 worldwide citation)

An RFID label with embedded tag is passed through an RFID antenna in a printer system, where the RFID antenna allows a roll of such labels to pass in close proximity to the antenna and still allow each individual RFID tag to be read and/or programmed. The RFID antenna is formed with two parallel mic ...


5
Robert A Kleist, Jerry Matula: Printer system ribbon drive having constant ribbon speed and tension. Printronix, Fraser and Bogucki, December 11, 1979: US04177731 (46 worldwide citation)

An impact printer ribbon drive of the reel-to-reel type, in which a length of ink ribbon extending between and wound around opposite reels is disposed between a reciprocating hammer bank and print paper on a platen, drives the ribbon at substantially constant speed and tension independent of varying ...


6
Gordon Brent Barrus, Leo Joseph Emenaker: Print hammer mechanism. Printronix, Fraser and Bogucki, August 30, 1977: US04044668 (42 worldwide citation)

A hammer mechanism which undergoes reciprocating motion across platen-supported paper webs in a dot matrix printer effects printing by momentarily energizing coils associated with selected resilient hammer elements mounted on a common magnetic structure to neutralize a magnetic field from the common ...


7
Theodore A Chapman, Van L Le, Carol D Ballesty, Andrew W Edwards, James Harkins, John S Hanel, Greg J Anderson, Ming Te Chen: EPC data manager. Printronix, MacPherson Kwok Chen & Heid, Tom Chen, October 3, 2006: US07114655 (33 worldwide citation)

An RFID print system includes an RFID printer and reader, a host computer that transmits a data stream containing instructions or commands to the RFID printer for encoding an RFID tag, and a data manager that receives EPC data or other data from the encoded tag. The data manager transmits the data t ...


8
Gordon B Barrus, Dennis R White, Kevin P Moore: Thermal printer with improved transport, drive, and remote controls. Printronix, MacPherson Kwok Chen & Heid, Tom Chen, January 11, 2005: US06840689 (31 worldwide citation)

A thermal printer utilizing a platen on which media can move over a print head in association with print ribbon from a supply spool driven by motors connected to a print ribbon supply and take-up with a program to provide current settings and engine control to the ribbon. The printer further has a r ...


9
Gordon B Barrus, Ricky T K Choy, Ryan Takakawa: Printer ribbon motor controller. Printronix, George F Bethel, Patience K Bethel, November 22, 1994: US05366303 (31 worldwide citation)

This disclosure sets forth a dot matrix printer having an improved ribbon drive. The ribbon drive is provided by two respective stepper motors. When one stepper motor is in a take-up mode, the second is in a feed mode. The process is reversed proximate the end of the tape as it is unwound. A re-gene ...


10
Gordon B Barrus, Jerry Matula: Counterbalanced bidirectional shuttle drive having linear motor. Printronix, Fraser & Bogucki, November 16, 1982: US04359289 (29 worldwide citation)

An arrangement for bidirectionally driving a hammer bank shuttle assembly along a linear path in a line printer includes an opposite pair of circular, rotatable elements having an elongated shuttle assembly mounting element and an elongated counterbalancing element extending between the pair of rota ...