HP INCFollow


In all inkjet printers the ink cartridges are arranged in a slot array where is required to insert each ink

supply (cartridge containing ink of a certain colour) on the right slot position. Installing an ink cartridge

in the wrong slot may lead to the mixing of different ink colours inside the printer’s ink delivery system

causing a severe service issue which basically consists of purging and cleaning all the internal ink tubes.

The innovation presented in this paper takes advantage of the electrical circuitry to allow the printer to

identify the ink supply and verify that it has been inserted in the right slot with no need of mechanical

features before pumping the ink into the printer.

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