Color differential gloss security printing

A method comprising:

• identifying gloss levels and appearance colors for different printers based on common printing capabilities of said different printers, said gloss levels and said appearance colors being formed from different combinations of one or more colorant marking materials combined on a print substrate surface;
• identifying common color metameric pairs based on said gloss levels and said appearance colors, each of said common color metameric pairs having a same appearance color and a different gloss level;
• identifying specific metameric pairs from said common color metameric pairs for a specific printer of said different printers;
• and
• processing a print job through said specific printer using said specific metameric pairs to produce printed items having a differential gloss security feature,
• said differential gloss security feature comprising patterns of different gloss levels in an area of uniform appearance color.

A method comprising:

• identifying gloss levels and appearance colors for different printers based on common printing capabilities of said different printers, said gloss levels and said appearance colors being formed from different combinations of one or more colorant marking materials stacked on a print substrate surface;
• identifying common color metameric pairs based on said gloss levels and said appearance colors, each of said common color metameric pairs having a same appearance color and a different gloss level;
• storing said common color metameric pairs in a non-transitory storage medium operatively connected to at least one of said different printers;
• accessing said common color metameric pairs within said non-transitory storage medium using a specific printer of said different printers;
• identifying specific metameric pairs from said common color metameric pairs for said specific printer;
• and
• processing a print job through said specific printer using said specific metameric pairs to produce printed items having a differential gloss security feature,
• said differential gloss security feature comprising patterns of different gloss levels in an area of uniform appearance color.

A printing device comprising:

• a processor device;
• an input/output device operatively connected to said processor;
• and
• a printing engine operatively connected to said processor,
• said processor device accessing, through said input/output device, common color metameric pairs stored within a non-transitory storage medium external to said printing device,
• each of said common color metameric pairs having a same appearance color and a different gloss level,
• gloss levels and appearance colors of said common color metameric pairs being formed from different combinations of one or more colorant marking materials stacked on a print substrate surface,
• said gloss levels and said appearance colors being based on common printing capabilities of different printers,
• said printing device comprising one of said different printers,
• said processor device identifying specific metameric pairs from said common color metameric pairs corresponding to said printing device,
• said processor device processing a print job through said printing engine using said specific metameric pairs to produce printed items having a differential gloss security feature, and
• said differential gloss security feature comprising patterns of different gloss levels in an area of uniform appearance color.