Faster warm-up, lower energy, and quieter modes for solid ink printers
View Patent ↗A method of operating a printer turns off a support structure heater when the printer enters standby mode. The print head is then moved away from an intermediate transfer surface supported by a support structure. Heat settings used to heat a print head are then varied to heat the print head and the support structure. Another method of operating a printer turns off a support structure heater when the printer enters standby mode and holds a print head adjacent to an intermediate transfer surface while the printer is in standby mode.
1. A printer, comprising:
a print head to transfer melted ink on an intermediate transfer surface disposed on a support structure;
a mounting configured to position the print head in at least a first position adjacent to the intermediate transfer surface and a second position tilted away from the intermediate transfer surface, wherein the print head provides heat to the intermediate transfer surface when in the first position;
a support structure heater to heat the intermediate transfer surface;
a print head heater to heat the print head; and
a controller to control the print head heater to vary temperature of the print head from a full power mode to reduced power mode, wherein the reduced power mode comprises at least two preset temperatures and the controller is configured to control the print head heater to alternate the temperature of the print head between the at least two preset temperatures.
2. The printer of claim 1 , further comprising a timer configured to determine a duration of the alternating between the at least two preset temperatures.
3. The printer of claim 1 , the controller to vary temperature of the print head between two temperatures in the reduced power mode.
4. The printer of claim 1 , the controller further to cause the support structure heater to be turned off when in the reduced power mode.
5. The printer of claim 3 , wherein the two temperatures further comprise a first temperature just below a melting point of the ink and a second temperature above the melting point of the ink.
6. The printer of claim 3 , where in the controller varies the temperature of the print head between a first, lower temperature for a first predetermined period of time and a second, higher temperature for a second predetermined period of time shorter than the first period of time.