Patent ID: 8292392
Filing Date: 2012-10-23
Classification: B41J

Abstract:
1. An inkjet printer configured to print images with phase change ink comprising: an inkjet printhead having a plurality of inkjet ejectors; an imaging member positioned to receive ink ejected from the inkjet printhead as the imaging member rotates past the inkjet printhead; a transfix roller configured to move towards and away from the imaging member to form a nip with the imaging member selectively; an electrical circuit operatively connected to the plurality of inkjet ejectors to deliver firing signals to the inkjet ejectors selectively; a heater positioned proximate a media transport path in the inkjet printer, the heater being configured to heat media before the media reaches the nip formed with the transfix roller and the imaging member; a processor configured to receive image data representative of an image to be printed and to measure a density of the image to be printed; a plurality of temperature sensors, at least one temperature sensor being positioned proximate to each of the inkjet printhead, the imaging member, the transfix roller, and the heater to measure a temperature for each of the inkjet printhead, the imaging member, the transfix roller, and the heater, respectively; and a controller operatively connected to the electrical circuit, the transfix roller, the imaging member, the heater, the processor, and the plurality of temperature sensors, the controller being configured to operate the inkjet printer with reference to a first group of operational parameters in response to each of the temperature sensors measuring a temperature that corresponds to one of an operational inkjet printhead temperature, an operational imaging member temperature, an operational transfix roller temperature, and an operational heater temperature and to operate the inkjet printer with a second group of operational parameters in response to at least one of the temperature sensors measuring a temperature that corresponds to a temperature that is less than at least one of the operational inkjet printhead temperature, the operational imaging member temperature, the operational transfix roller temperature, and the operational heater temperature, respectively.