Patent ID: 9042746
Filing Date: 2015-05-26
Classification: G03G

Abstract:
1. A method for providing a page countdown for a replaceable unit of an image forming device, comprising: calculating a number of pages remaining until the replaceable unit will reach the end of its life; displaying on a display screen of at least one of the image forming device and a device in electronic communication with the image forming device the calculated number of pages remaining until the replaceable unit will reach the end of its life; after displaying the calculated number of pages remaining, decreasing the displayed number of pages remaining by one for each page printed by the image forming device, recalculating the number of pages remaining and tracking a discrepancy between the displayed number of pages remaining and the recalculated number of pages remaining; and if the discrepancy exceeds a predetermined error threshold, displaying the recalculated number of pages remaining and continuing decreasing the displayed number of pages remaining by one for each page printed from the displayed recalculated number of pages remaining.