Abstract: An imaging device has a developer roll to provide toner to a photoconductive drum to develop a latent image on the drum for direct transfer to media or an intermediate transfer member. A power supply in communication with a controller sets relative voltages on the developer roll and drum. During transfer of the toner, the imaging device determines a current between the developer roll and drum. In turn, the controller determines a charge and mass of the toner for setting with the power supply an operating voltage on the drum or developer roll. Preventing and reporting toners with insufficient charge are other embodiments.

Abstract: A printer is provided including a substrate transport apparatus; a pick mechanism; a fuser assembly having a heat transfer member including a belt and a heater, a backup member for engaging the belt so as to define a fusing nip with the belt, and a temperature sensor associated with the backup member for sensing the temperature of the backup member; and a controller coupled to the substrate transport apparatus, the pick mechanism, the heater and the temperature sensor. The controller causes the pick mechanism to remove substrates from the storage tray at a first pick rate when the backup member is at a temperature within a first backup member index temperature range and at different pick rate less than the first pick rate when the backup member is at a temperature greater than the first backup member index temperature range.

Abstract: A fuser assembly is provided comprising: a heat transfer member including a belt and a heater to heat the belt; a backup member adapted to engage the belt so as to define a fusing nip with the belt; a temperature sensor associated with the backup member for sensing the temperature of the backup member; and a controller coupled to the heater and the temperature sensor. The controller controls the operation of the heater based on the backup member temperature.

Abstract: A printer is provided comprising substrate transport apparatus for moving substrates through the printer along a substrate path; a pick mechanism for removing substrates from a storage tray and feeding the substrates to the substrate transport apparatus; a fuser assembly comprising a heat transfer member including a belt and a heater to heat the belt, a backup member adapted to engage the belt so as to define a fusing nip with the belt, and a temperature sensor associated with the backup member for sensing the temperature of the backup member; and a controller coupled to the substrate transport apparatus, the pick mechanism, the heater and the temperature sensor.

Abstract: An oil web system and method for operating a fuser system of an imaging apparatus in which remaining life of the oil web is determined from data on drive mechanism activation and data on web advancement lengths. A warning signal can be issued upon a predetermined remaining length being reached, and the machine can be disabled upon exhaustion of the web life.