Closed loop color control of selected regions using solid color regions within images
US8763528B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2010 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Nov 5, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F33/0045
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A color control system for use in a printing press is provided. The system includes a controller for reviewing digital data for a print job and identifying solid color regions of the print job that are greater than a predetermined size, a user interface allowing an operator to select solid color regions identified by the controller, a sensor for measuring a characteristic of the selected solid color regions of the print job on a printed substrate, the controller determining measured values of the characteristic for each of the selected solid color regions, and at least one inking unit for supplying ink in a plurality of ink zones to a plate cylinder, the controller varying the ink supplied to ink zones including the solid color regions as function of a difference between the measured value of the characteristic of each selected solid color region and a predetermined target value of the characteristic. A method for controlling printing of a printing press is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.