How It Works: The full-color digital photos are created without ink cartridges or ribbons using ZINK Photo Paper™, keeping the printer to about the size of a deck of cards. The paper is a durable material that contains colorless cyan, yellow and magenta dye crystals. Heat activation brings photos to life, colorizing ZINK™ dye crystals, so digital photos can be shared instantly.
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How does Ink-Free printing work?
From the Polaroid Product Page.
How It Works:
The full-color digital photos are created without ink cartridges or ribbons using ZINK Photo Paper™, keeping the printer to about the size of a deck of cards. The paper is a durable material that contains colorless cyan, yellow and magenta dye crystals. Heat activation brings photos to life, colorizing ZINK™ dye crystals, so digital photos can be shared instantly.
Great...now the paper can cost more than the printer.