Incremental printing of symbolic information – Ink jet – Controller
Patent
1995-12-28
1998-12-08
Hartary, Joseph
Incremental printing of symbolic information
Ink jet
Controller
358456, B41J 201
Patent
active
058477241
ABSTRACT:
A method of printing an input digital gray-scale image by ejecting ink on recording medium through a plurality of ink ejecting orifices to form a binary image including a plurality of spots. The method of printing includes the steps of determining an ink spot characteristic or ink ejecting characteristic for at least one of the plurality of ink ejecting orifices, calculating a correction factor based on the characteristic, modifying an error diffusion algorithm with the calculated correction factor, and printing the binary image according to the modified error diffusion algorithm on the recording medium.
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Knox et al., "Threshold Modulation In Error Diffusion", Journal of Electronic Imaging, Jul. 1993, pp. 185-192.
Hallacher Craig A.
Hartary Joseph
Xerox Corporation
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