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INK JET CHARACTER GENERATION

IP.com Disclosure Number: IPCOM000023374D
Original Publication Date: 1977-Aug-31
Included in the Prior Art Database: 2004-Mar-30
Document File: 2 page(s) / 255K

Publishing Venue

Xerox Disclosure Journal

Abstract

A character generator is provided for a matrix-type ink jet printer. A character wheel 10 with a plurality of transparent characters at its periphery is provided and may be actuated in the same manner as a print wheel on the Xerox 800 ETS. A separate light diode 12 is provided for each ink jet, and each-ink jet is actuated in accordance with a signal emitted by its respective light diode. A scanning head 14 comprising a plur-ality of fiber optics 16, one for each diode, is located adjacent the print wheel, and each fiber is connected at one end to a respective light diode. The other end of each fiber is connected to the scanning head in a matrix array. A large slit source 18 and a light source 20 are located on the other side of the character wheel 10, opposite the fiber-optic head 14. The fiber-optic scanning head and slit source are moved across the continuously rotating character wheel simultan-eously as the ink jet matrix head moves across a recording medium. Light transmitted through the transparent character to the fiber-optic scanning head will be transmitted to the respective light diodes which will actuate their respective

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

INK JET CHARACTER GENERATION
J. Burnett

Proposed Classification
U.S. Cl. 346/75
mt. Cl. GOld 15/18

/2

A character generator is provided for a matrix-type ink jet
printer. A character wheel 10 with a plurality of transparent
characters at its periphery is provided and may be actuated in
the same manner as a print wheel on the Xerox 800 ETS. A
separate light diode 12 is provided for each ink jet, and each~
ink jet is actuated in accordance with a signal emitted by its
respective light diode. A scanning head 14 comprising a plur-
ality of fiber optics 16, one for each diode, is located
adjacent the print wheel, and each fiber is connected at one
end to a respective light diode. The other end of each fiber
is connected to the scanning head in a matrix array. A large
slit source 18 and a light source 20 are located on the other
side of the character wheel 10, opposite the fiber-optic head
14. The fiber-optic scanning head and slit source are moved
across the continuously rotating character wheel simultan-
eously as the ink jet matrix head moves across a recording
medium. Light transmitted through the transparent character
to the fiber-optic scanning head will be transmitted to the
respective light diodes which will actuate their respective

Volume ~2 Number 4 July/August 1977 69

/8

I,-.


20.1

1

/0

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Page 2 of 2

INK JET CHARACTER GENERATION (Cont'd)

jets to provide a real-time character print-out. This system
may a...