Title:
インク相変化の間の圧力と温度との協調方法
Document Type and Number:
Japanese Patent JP5922941
Kind Code:
B2
Abstract:
A print head assembly for an ink jet printer includes an ink flow path configured to allow passage of a phase-change ink. A pressure unit is fluidically coupled to the ink flow path to apply a pressure to the ink. The applied pressure is controlled by a control unit during a time that the ink in the ink flow path is undergoing a phase change. During the phase change, a portion of the ink in a first region of the ink flow path is in liquid phase and another portion of the ink in another region of the ink flow path is in solid phase. A constant or variable pressure can be applied at least to the liquid phase portion of the ink during a phase transition from a liquid phase to a solid phase or from a solid phase to a liquid phase.
A print head assembly for an ink jet printer thus comprises:
an ink flow path (510-520), the ink flow path configured to allow passage of a phase-change ink along the ink flow path;
a pressure unit (555) configured apply pressure to the ink; and
a control unit (550) configured to control the pressure applied to the ink and to coordinate the pressure applied to the ink with temperature of the ink during a time that the ink in the ink flow path is undergoing a phase change.
Inventors:
Scott Jay Lim
John Paskewitz
Eric Jay Schroeder
John Paskewitz
Eric Jay Schroeder
Application Number:
JP2012022485A
Publication Date:
May 24, 2016
Filing Date:
February 03, 2012
Export Citation:
Assignee:
Palo Alto Research Center Incorporated
International Classes:
B41J2/01; B41J2/17; B41J2/175; B41J2/19; B41J2/195
Domestic Patent References:
| JP3114839A | ||||
| JP3182357A | ||||
| JP2006256326A | ||||
| JP2009234263A |
Foreign References:
| WO2011162152A1 | ||||
| WO2010077386A1 |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Kato Kazunori