Driver IC configurable for recording in multiple resolutions pri

Details Driver IC configurable for recording in multiple resolutions pri Driver IC configurable for recording in multiple resolutions pri

1995-12-28

1999-07-20

Yockey, David F.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

347 13, 347211, 347900, B41J 2435, B41J 2938, B41J 235

Patent

active

059262010

ABSTRACT:
A driver chip for use in an LED or other multi-element recording printhead includes a plurality of current driver channels. Data for determining recording durations for each of the current driver channels is provided on a data bus. A token bit is shifted through a shift register in association with image data to be latched by registers corresponding to a specific driver channel. The driver chip is operational in different recording resolution modes so that it may be connected to recording arrays of different resolutions. When operational in other than its highest or higher resolution, a by-pass signal is generated causing the token bit to by-pass certain stages of the shift register.

REFERENCES:
patent: 4746941 (1988-05-01), Pham et al.
patent: 4750010 (1988-06-01), Ayers et al.
patent: 4831395 (1989-05-01), Pham et al.
patent: 5126759 (1992-06-01), Small et al.
patent: 5138310 (1992-08-01), Hinane et al.
patent: 5300960 (1994-04-01), Pham et al.
patent: 5608431 (1997-03-01), Kishida et al.

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