Adjustable print size control for raster output scanners

Details Adjustable print size control for raster output scanners Adjustable print size control for raster output scanners

1987-03-23

1989-02-21

Harkcom, Gary V.

Boots, shoes, and leggings

358287, 355 57, G06F 506

Patent

active

048071560

ABSTRACT:
Adjustable image print magnification system for a printer of the type using a raster output scanner having a rotating scanning polygon, a pixel clock providing clock signals for clocking pixels from an image signal source to the scanner, a polygon clock for controlling the rotating speed of the polygon, a first cycle stealing circuit for reducing the scanner pixel and polygon clocks together to control image length, and a second cycle stealing circuit for reducing the pixel clock only to control image width.

REFERENCES:
patent: 3541245 (1970-11-01), Wilby
patent: 4153896 (1979-05-01), White
patent: 4283724 (1981-08-01), Edwards
patent: 4357604 (1982-11-01), Imazeki et al.
patent: 4365276 (1982-12-01), Kokaji et al.
patent: 4366508 (1982-12-01), Crean et al.
patent: 4367533 (1983-01-01), Wiener
patent: 4613877 (1986-09-01), Spencer et al.
patent: 4650317 (1987-03-01), Oushiden et al.
patent: 4687944 (1987-08-01), Mitsuka et al.

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