Refill unit for ink cartridge in printer with ink suitability verification

摘要

A refill unit for refilling an ink cartridge that forms part of an inkjet printer, the printer also having a printhead, control circuitry and an interface for releasably engaging the refill unit, the refill unit comprising: a body containing a quantity of ink; an ink outlet; and, a memory circuit for storing information relating to at least one characteristic of the ink; wherein during use, the memory circuit allows to the control circuit to interrogate it to verify that the ink in the refill unit is suitable for the printer.