公开(公告)号：US10744806B2

公开(公告)日：2020-08-18

申请号：US16429898

申请日：2019-06-03

申请人： Entrust Datacard Corporation

发明人： John Knaack ,  Rajesh K. Juriasingani ,  Patrick C. Cronin

IPC分类号： B41M5/025

摘要： Techniques are described for obscuring residual images on print ribbons that have been used to print on plastic cards in order to prevent access to sensitive or personalized data appearing in the residual images. An image is printed on a retransfer film using the print ribbon, thereby creating a residual image of the printed image on the print ribbon. The retransfer film is then used to obscure some or all of the residual image on the print ribbon by transferring ink from the section of the print ribbon containing the residual image onto the retransfer film. In some embodiments, obscuring the residual image on the print ribbon occurs before the printed image on the retransfer film is transferred to the plastic card.

公开(公告)号：US10661593B2

公开(公告)日：2020-05-26

申请号：US16428310

申请日：2019-05-31

申请人： Entrust Datacard Corporation

发明人： Miguel Ayala ,  Heather Maershbecker ,  Rajesh K. Juriasingani ,  John Knaack ,  Wade Kragtorp

IPC分类号： B42D25/405 ,  B42D25/45

摘要： Methods and systems are disclosed for printing vibrant grey color(s) on plastic cards. The following features, which can be used individually or in any combination thereof, can be implemented to achieve the vibrant grey color(s): 1) use of CMYK pigment inks to achieve CMYK printing; 2) a pixel extraction process and/or a print trapping process; 3) two separate print commands including a CMY (or CMYK)+blending print command and a K+blending print command; and 4) proper card set-up.