Intelligent printing system
AssigneesTexas Instruments Incorporated, Agfa-Gevaert
InventorE. Earle Thompson
Life of this patent
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Abstract
A toner dispenser with on-board intelligence. The toner dispenser includes a reservoir of toner material and memory that stores the characteristics and amount of that toner material contained within. A coil resides inside the reservoir to allow the system into which the dispenser is inserted to vibrate the coil. This accomplishes both a churning of the toner, and the back-EMF of the coil can be measured to calculate the amount of toner remaining. The toner dispenser has communications capability that allows it to send the information contained therein to a system processor of the system into which it is inserted.
Claims1
An EP subsystem for use in a printing system comprising:
- a. a reservoir of toner material;
- b. non-volatile memory operable to store information about characteristics of said toner material, wherein said memory has backup power to allow storage of said information when said printing system is off and is erased upon opening of said EP subsystem;
- c. a coil such that when said coil is activated, back-EMF from said coil is measured indicating the quantity of toner remaining by the magnitude of said back-EMF and said activation vibrates said toner in said reservoir thereby reducing clumping of said toner;
- and
- d. a port allowing transfer of data including quantity and toner characteristics to a system processor upon insertion of said EP subsystem into said printing system.
Dependencies are inferred from the claim text.