Abstract: The present invention is directed to a process dispensing of one or more dispensable compositions, such as ink jet ink and a monitoring device used therein. The process includes reading with an interrogator current dispensable composition information disposed on identification tags affixed to reservoirs positioned in a dispensing device. The reservoirs containing the dispensable compositions and the current information is stored on a host computer in communication with a client computer of the device, or on said client computer and said host computer. The process is terminated if the current information does not match with stored dispensable composition information of the dispensable. The dispensing process is commenced if the current information matches with the stored information. The current information on the tags is then updated by using the interrogator. The updated information then becomes current information in a subsequent dispensing cycle.

Abstract: The present invention is directed to a monitoring device used for dispensing of one or more dispensable compositions, such as an ink jet ink and. The device includes a client computer in communication with a host computer. One or more reservoirs containing dispensable compositions, such as ink jet ink, are provided identification tags. Interrogators are used to read current dispensable composition information disposed on the tags. The device does not dispense the composition is the current information does not match with stored information of the composition. If there is a match, the device permits dispensing of the composition on a target substrate, such as print medium. The interrogator then updates the current information on the tag after deducting the amount of the composition dispended by the device. The updated information then becomes current information for a subsequent dispensing cycle.