System for electronically controlling LED-array image printer

Details System for electronically controlling LED-array image printer System for electronically controlling LED-array image printer

1990-06-05

1992-05-05

Reinhart, Mark J.

Recorders

Light or beam recording

Including record receiver or handling means therefor

358296, 346 11, H04N 121

Patent

active

051112183

ABSTRACT:
A system for controlling an image printer including a scanning LED array is provided. An image printer control unit receives page profile and raster image data and converts the raster image data into parallel image data corresponding to the configuration of the LED array. Advantageously, the image printer control unit optimizes the number of lines of information printed during a scan to reduce splitting of characters between scans and coordinates printhead and photosensitive medium position. Interlaced scanning for high resolution is also provided. In an alternative embodiment image data is received in parallel vertical slices and bands for which no exposure is to be made are skipped.

REFERENCES:
patent: 4169275 (1979-09-01), Gunning
patent: 4342504 (1982-08-01), Ebner
patent: 4739352 (1988-04-01), Gorelick
patent: 4779071 (1989-01-01), Zeise
patent: 4780730 (1988-10-01), Dodge

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