Back to results
US 11,528,386 B1Granted
Printing color separation and fiducials on substrates in an inkjet printer to register and print remaning color separations
AssigneeXerox Corporation
InventorsDouglas K. Herrmann, Seemit Praharaj, Chu-Heng Liu, Jason M. LeFevre, Varun Sambhy
Life of this patent
Estimating the term…
Abstract
A method of operating a printer separates the image data content of a sheet in a print job into multiple color separations. The first color separation printed on the sheet includes at least two fiducials printed in the least perceptible color of ink in the printer. The at least two fiducials are used to identify the process direction and skew of the printed sheet before the remaining color separations are printed on the sheet with the first color separation.
Claims22
A method for operating a printer comprising:
- receiving with a controller image data content for a sheet in a print job;
- generating at least two color separations using the image data content for the sheet;
- add image content data corresponding to at least two fiducials to a first color separation to be printed of the at least two color separations;
- printing the first color separation and the added image data content on the sheet;
- and
- using image data of the printed first color separation to register and print remaining color separations of the at least two color separations on the sheet.
3 more elements
An inkjet printer comprising:
- a plurality of printheads;
- a media transport configured to move media sheets past the plurality of printheads;
- an image sensor configured to generate image data of the media sheets before the media sheets pass the plurality of printheads;
- and
- a controller operatively connected to the image sensor and the media transport, the controller being configured to receive image data content for a sheet in a print job, generate at least two color separations using the image data content for the sheet, add image content data corresponding to at least two fiducials to a first color separation to be printed of the at least two color separations, print the first color separation and the added image data content on the sheet, and use image data of the printed first color separation on the sheet generated by the image sensor to register and print remaining color separations of the at least two color separations on the sheet.
2 more elements
Dependencies are inferred from the claim text.