Invisible photo printing techniques: equipment and ink.


New member
Dear Sir/Madam, I want to learn about invisible photo printing techniques: equipment and ink because I need to print security products to prevent copying. Images can only be seen under infrared laser light as shown below.

Please give me some information if possible.
Thank you very much.
I believe the Ricoh 7200 with the 5th color option has a toner you can use for that
Which is why caution is needed when considering IR reactive security features. If someone can use a digital press to duplicate it, how secure is it? Obviously, the effectiveness depends on the value of what you are securing. In fact, for $60 you can get an HP compatible IR ink cartridge. We use them in mailing. IR should only be one element of security.


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