A method and system for informing a user about characteristics of a marking material cartridge in a printing system. The system calculates a number of pixels being rendered in a present job and calculates an amount of marking material used to render the present job. The system also calculates a total...http://www.google.com/patents/US5636032?utm_source=gb-gplus-sharePatent US5636032 - System and method for informing a user of a marking material status in a printing environment
