High resolution simulation printing

Printer (1) having the capability of printing at 600x2400 dpi resolution simulates 1200x1200 dpi resolution by logically examining two lines of a 1200x1200 bit map and printing identically when possible and half black when only one of the two vertically adjacent bits signifies black, the bits for ha...

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Bibliographic Details
Main Authors GARY SCOTT OVERALL, PHILLIP BYRON WRIGHT
Format Patent
LanguageEnglish
Published 22.07.1998
Edition6
Subjects
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary:Printer (1) having the capability of printing at 600x2400 dpi resolution simulates 1200x1200 dpi resolution by logically examining two lines of a 1200x1200 bit map and printing identically when possible and half black when only one of the two vertically adjacent bits signifies black, the bits for half printing being located to the right if the preceding bit is white and being located to the left if the preceding bit is black. This places the bits for half printing beside black bits and thereby extends the length of black printed, thereby reducing high frequency effects.
Bibliography:Application Number: GB19950023447