Invention Grant
- Patent Title: Image data based temperature control of a keyless inker
- Patent Title (中): 基于图像数据的无钥匙打印机的温度控制
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Application No.: US13356308Application Date: 2012-01-23
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Publication No.: US09138982B2Publication Date: 2015-09-22
- Inventor: Peter Paul , Jorge A. Alvarez , Nancy Y. Jia , Charles Donahue Rizzolo , Augusto E. Barton
- Applicant: Peter Paul , Jorge A. Alvarez , Nancy Y. Jia , Charles Donahue Rizzolo , Augusto E. Barton
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: Prass LLP
- Agent Ronald E. Prass, Jr.
- Main IPC: B41F31/02
- IPC: B41F31/02 ; B41F13/22 ; B41F31/00 ; B41F31/04 ; B41F33/10

Abstract:
A method and systems to control the temperature of a Keyless inker for variable data lithography printing. Inker heating elements are adjustable to control ink feed to individual zones located across the width of an ink roller. Feedforward and feedback control loops adjust the ink supply dynamically based on a pixel count of the image content. The pixel count looks ahead in the video stream to allow time for the adjustment at the inker heating elements to propagate through the inker unit to affect ink output onto the imaging drum surface. Feedback of the achieved ink density on control patches on the imaging drum is also used to command the inker heating elements. Feedback is also used to update the inker propagation delay and dynamic model used to determine how much the inker keys need to be adjusted based on the pixel count stream.
Public/Granted literature
- US20130186291A1 IMAGE DATA BASED TEMPERATURE CONTROL OF A KEYLESS INKER Public/Granted day:2013-07-25
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