Interlace method for scanning print head systems

Details Interlace method for scanning print head systems Interlace method for scanning print head systems

1989-07-31

1990-04-24

Reynolds, Bruce A.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346 75, 346140R, 358296, G01D 1516, H04N 121

Patent

active

049203550

ABSTRACT:
An improved printing method using a print head having a linear array of print elements adapted to be indexed in a direction parallel to the line of the array direction to address successive groups of rows of print media pixels moved therepast in a direction generally perpendicular to the array direction. The method includes the steps of (i) selecting such print head to comprise an even number (A) of print elements located in a linear array and having with a uniform 2 pixel spacing; (ii) alternately indexing the print head, in a direction parallel to the array direction by the amounts of A-1 and A+1 pixels; and (iii) in correspondence with such alternate indexings respectively printing on even or odd rows of the print medium in accord with image information.

REFERENCES:
patent: 4009332 (1977-02-01), Van Hook
patent: 4198642 (1980-04-01), Gamblin
patent: 4520368 (1985-05-01), Ims
patent: 4622560 (1986-11-01), Withoos et al.

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