Driver IC and print head

Details Driver IC and print head Driver IC and print head

1998-02-18

2000-02-08

Yan, Ren

Typewriting machines

Typing by other than type-face or type-die

B41J 200

Patent

active

060221550

ABSTRACT:
A driver IC has a shift register and latch circuit as a data holding circuit for holding drive data for plural LED elements, and AND elements as driving elements for outputting drive signals based on the drive data held in the latch circuit. The AND elements are divided into AND element groups, each of which includes a predetermined number of AND elements. The driver IC also has strobe lines for transmitting strobe signals to the AND elements. The strobe signals are used for transmitting to the AND elements information regarding driving order of the AND elements in each of the AND element groups. The driver IC also has common output terminals each formed by connecting output terminals of the AND elements in each of the AND element groups.

REFERENCES:
patent: 4998119 (1991-03-01), Collins et al.
patent: 5200763 (1993-04-01), Tanuma et al.
patent: 5371525 (1994-12-01), Murano
patent: 5467036 (1995-11-01), Sawada
patent: 5734406 (1998-03-01), Nakamura et al.

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