Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Patent
1994-09-16
1996-03-26
Fuller, Benjamin R.
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
347145, B41J 245
Patent
active
055024785
ABSTRACT:
ElectrophotographLc image formation by an LED array consisting of a plurality of LED chips arranged in a row and a driver having a plurality of drive ICs each connected in parallel to each of m units of LED array chips within each of n groups obtained by partition of the entire LED array. To execute a scanning of the LED array chip emitting in response to drive signals from said drive IC by scanning means to provide repetitious m-divisional scans for each n-partitioned group of chips simultaneously, a control device controls each drive IC, upon leaving a scan in a finest group of chips, to start scanning LED array chips in an adjacent succeeding group with respect to the scanning direction, while another drive IC starts scanning in the first group of chips, the array and the driver thereby scanning in waves to achieve faster printing speed with reduced electronic consumption.
REFERENCES:
patent: 4427275 (1984-01-01), Stalzer
patent: 4689694 (1987-08-01), Yoshida
patent: 4956684 (1990-09-01), Urata
patent: 5179396 (1993-01-01), Jeong
Fuller Benjamin R.
Sunx Limited
Yockey David
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