For several years, the Document Security Laboratory of ANY Security Printing Company has been involved in the development and production of inks that are compatible with commercially available office printers, but contain special security markers. A big advantage of the printers using such types of inks is that the originality of the printed texts and the act of subsequent falsification in terms of textual content can be clearly demonstrated. It is recommended to use this product line primarily for creating documents filled in on-site, contracts, receipts, certificates, statements, and verifications, because, in the event of disputes, it makes it much easier for an expert to quickly and clearly identify the authenticity of official documents created in this way. The product combines the low price range of commercial printers and the security of special printers. We use the most advanced technology tools and processes to produce the inks allowing us to produce pigments belonging to the nanometre size range, the development of ink systems and their use in ink-jet and laser printers.