Printing associated plots in registration

• US 9,266,364 B2
• Filed: 07/29/2011
• Issued: 02/23/2016
• Est. Priority Date: 07/29/2011
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Encrenaz, Michel Georges, Suriol, Selma Casanovas
• Primary Examiner(s): Marini, Matthew G
• Application Number:
  US13/193,703
• Publication Number:
  US 20130025488A1
• Time in Patent Office: 1,670 Days
• Field of Search: 101/486, 101/481, 399/394, 399/384, 400/583, 400/611
• US Class Current: 1/1
• CPC Class Codes: B41J 11/46 by marks or formations on the paper being fed
• CPC Class Codes: B41J 3/60 for printing on both faces of the printing material

Abstract

In one example, a print job is received. The print job includes a first plot to be printed on a first side of a media, and a second plot to be printed on a second side of the media in registration with the first plot. The first plot and a fiducial mark are caused to print on the first side, the fiducial mark being a known distance from the first plot and including an identifier for the second plot. In response to detecting the identifier via a sensor and measuring a distance to the fiducial mark to discern a reference for printing the second plot, the second plot is caused to print on the second side in registration with the first plot.

Claims

1. A method to print associated plots in registration on first and second sides of a media, comprising:

receiving a print job including a first plot to be printed the first side, and a second plot to be printed on the second side in registration with the first plot;

causing printing of the first plot and a fiducial mark on the first side, the fiducial mark

being a known distance from the first plot, and

including an identifier, wherein the identifier is data that indicates which of a plurality of plots in a memory location is the second plot to be printed on the second side;

causing printing of the second plot on the second side in registration with the first plot in response to

detecting via a sensor the identifier, and

measuring a distance to the fiducial mark to discern a reference for printing the second plot.

2. The method of claim 1, wherein the distance to the fiducial mark is measured by the sensor.

3. The method of claim 1, wherein the distance to the fiducial mark is measured by a sensor other than the sensor that detects the identifier.

4. The method of claim 1, wherein the identifier comprises a barcode.

5. The method of claim 1, wherein the identifier is an identifier generated at a computing device distinct from a printer device and an internal processor of the printer device.

6. The method of claim 1, wherein the identifier is an identifier generated at a printer.

7. The method of claim 1, wherein a width of the fiducial mark is substantially the same as a width of the first plot.

8. The method of claim 1, wherein the identifier comprises a pointer to the memory location for the second plot.

9. The method of claim 1, wherein the identifier comprises a tag with an address to the memory location for the second plot.

10. The method of claim 1, wherein the identifier indirectly identifies the second plot via a lookup table.

11. The method of claim 1, wherein a same print mechanism prints the first and second plots.

12. The method of claim 1, wherein causing printing of the second plot on the second side further comprises confirming that a condition precedent relating to the media is met.

13. The method of claim 1, further comprising causing inversion of the media after printing of the first plot to cause

the second side to be in a position to be printed upon, and

the fiducial mark to be exposed to a sensor as the media is advanced.

14. The method of claim 13, wherein causing inversion of the media comprises:

causing the media to be taken up on a take-up device during printing of the first plot; and

causing positioning of the take-up device to supply the media during printing of the second plot.

15. A system to print associated plots in registration on first and second sides of a media, comprising:

a receipt module to receive a print job including a first plot to be printed the first side, and a second plot to be printed on the second side in registration with the first plot;

a first side module to cause printing of the first plot and a fiducial mark on the first side, the fiducial mark

being a known distance from the first plot, and

including an identifier, wherein the identifier is data that indicates which of a plurality of plots in a memory location is the second plot to be printed on the second side;

a second side module to cause printing of the second plot on the second side in registration with the first plot in response to

detecting, via a sensor, the identifier, and

measuring a distance to the fiducial mark to discern a reference for printing the second plot.

16. The system of claim 15, wherein the identifier comprises a two dimensional barcode.

17. The system of claim 15, wherein the identifier provides the memory location for the second plot.

18. The system of claim 15, wherein the identifier indirectly identifies the second plot via a lookup table.

19. The system of claim 15, further comprising an inversion module to cause inversion of the media after printing of the first plot to cause

the second side to be in a position to be printed upon, and

the fiducial mark to be exposed to the sensor as the media is advanced.

20. A non-transitory computer-readable storage medium containing instructions to print associated plots in registration on first and second sides of a media, the instructions when executed by a processor causing the processor to:

receive a print job including a first plot to be printed the first side, and a second plot to be printed on the second side in registration with the first plot;

cause printing of the first plot and a fiducial mark on the first side, the fiducial mark

being a known distance from the first plot, and

including an identifier, wherein the identifier is data that indicates which of a plurality of plots in a memory location is the second plot to be printed on the second side;

cause inversion of the media after printing of the first plot to cause

the second side to be in a position to be printed upon, and

the fiducial mark to be exposed to a sensor as the media is advanced;

cause printing of the second plot on the second side in registration with the first plot in response to

detecting, via the sensor, the identifier,

measuring, via the sensor, a distance to the fiducial mark to discern a reference for printing the second plot, and

confirming that a condition precedent relating to the media is met.