Invention Grant
US09229407B1 System and method for optimal ink limiting on multi-pass clear jobs
有权
用于多通道清除作业中最佳墨水限制的系统和方法
- Patent Title: System and method for optimal ink limiting on multi-pass clear jobs
- Patent Title (中): 用于多通道清除作业中最佳墨水限制的系统和方法
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Application No.: US14595900Application Date: 2015-01-13
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Publication No.: US09229407B1Publication Date: 2016-01-05
- Inventor: David C. Robinson
- Applicant: Xerox Corporation
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: Gibb & Riley, LLC
- Main IPC: G03G15/00
- IPC: G03G15/00 ; G03G15/08 ; G03G15/32 ; G03G15/36

Abstract:
A print job is received into a print engine having an image processor. A page of the print job is analyzed for a color gamut and for clear toner. For multi-pass print jobs, toner usage per pixel for each color of the color gamut and the clear toner is determined. Adjusted pixel values for the clear toner are calculated using a predetermined percentage. Adjusted pixel values for the color toner are calculated for each color of the color gamut based on the maximum toner limit. A first layer of the page is rendered using the adjusted pixel values. Then, the adjusted pixel values are scaled for clear toner usage based on the predetermined percentage for the clear toner on the first pass using a tone reproduction curve. Subsequent layers of the page are rendered in selected passes using only the scaled pixel values for clear toner usage.
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