Front and back printing on security document substrates
First Claim
1. A method of printing on a security document substrate, comprising:
- using a print mechanism to print on a first surface of the security document substrate using a section of a print ribbon;
flipping the security document substrate over so that a second surface thereof is available for printing using the print mechanism;
using the print mechanism to print on the second surface of the security document substrate using the section of the print ribbon that was used to print on the first surface, wherein the printing on the first surface does not overlap the printing on the second surface.
3 Assignments
0 Petitions
Accused Products
Abstract
Techniques are described for printing on front and back surfaces of security document substrates in a manner that conserves use of print ribbon, thereby extending the life of the print ribbon. In general, the printer controller knows the content, as well as locations and colors, of what has been printed on the front or first surface of the security document substrate. The printer control also knows the content, as well as locations and colors, of what is to be printed on the back or second surface of the security document substrate. When the back surface of the substrate is to be printed, the printer controller determines, for a particular color, whether any of the printing on the back surface would overlap with the printing on the front surface. For locations where there would be no overlap, the printer can reuse the section of print ribbon that was used to print on the front surface to print on the back surface.
15 Citations
19 Claims
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1. A method of printing on a security document substrate, comprising:
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using a print mechanism to print on a first surface of the security document substrate using a section of a print ribbon; flipping the security document substrate over so that a second surface thereof is available for printing using the print mechanism; using the print mechanism to print on the second surface of the security document substrate using the section of the print ribbon that was used to print on the first surface, wherein the printing on the first surface does not overlap the printing on the second surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of printing on first and second opposite surfaces of a card, comprising:
printing on the first surface of the card using a section of a print ribbon, and thereafter printing on the second surface of the card using the section of the print ribbon;
wherein the printing on the first surface does not overlap the printing on the second surface.- View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
Specification