Transferable page countdown for a replaceable unit between image forming devices

摘要

An electrophotographic image forming device according to one embodiment includes a controller configured to provide a page countdown for a replaceable toner cartridge of the image forming device on a display screen. The controller, upon detecting an installation of an imaging unit previously mated with a first toner cartridge that was out of usable toner and detecting a presence of a second toner cartridge, is configured to determine whether the second toner cartridge is out of usable toner. The controller is configured to determine a number of pages remaining for a page countdown associated with the life of the second toner cartridge and whether the toner sump of the imaging unit contains sufficient toner to print the number of pages remaining for the page countdown associated with the life of the second toner cartridge if the second toner cartridge is out of usable toner.

主权项

1. An electrophotographic image forming device, comprising:
a display screen; and a controller in communication with the display screen and configured to provide a page countdown for a replaceable toner cartridge of the image forming device on the display screen; the controller, upon detecting an installation in the image forming device of an imaging unit previously mated with a first toner cartridge that was out of usable toner when the imaging unit was separated from the first toner cartridge and detecting a presence of a second toner cartridge positioned in the image forming device to deliver toner to the imaging unit, is configured:
to determine whether the second toner cartridge is out of usable toner;if the second toner cartridge is out of usable toner:
to determine a number of pages remaining for a page countdown associated with the life of the second toner cartridge;to determine whether the toner sump of the imaging unit contains sufficient toner to print the number of pages remaining for the page countdown associated with the life of the second toner cartridge;if the toner sump of the imaging unit contains sufficient toner to print the number of pages remaining for the page countdown associated with the life of the second toner cartridge, to continue the page countdown associated with the life of the second toner cartridge on the display screen from the number of pages remaining for the page countdown associated with the life of the second toner cartridge when pages are printed by the image forming device; andif the toner sump of the imaging unit does not contain sufficient toner to print the number of pages remaining for the page countdown associated with the life of the second toner cartridge, to reset the number of pages remaining for the page countdown associated with the life of the second toner cartridge based on the amount of toner available in the toner sump of the imaging unit and to continue the page countdown associated with the life of the second toner cartridge on the display screen from the reset number of pages remaining when pages are printed by the image forming device.