Title:
INK JET PRINTING HEAD
Document Type and Number:
Japanese Patent JP3178945
Kind Code:
B2
Abstract:
PURPOSE: To effectively improve the displacement characteristics of an ink pump member and to enhance ink emitting capacity by superposing a thermal expansion characteristic adjusting member relaxing the stress to the ink pump member, a nozzle member and the ink pump member one upon another to integrally bond them.
CONSTITUTION: An ink jet printing head 40 is constituted by integrally bonding an ink nozzle member 42 and an ink pump member 44. The ink supplied to the ink pressure chamber 46 formed in the ink pump member 44 is injected through the nozzle orifice 54 provided to the ink nozzle member 42. A thermal expansion characteristic adjusting plate 80 having a specified thickness is bonded to the surface on the side opposite to the bonding side of the ink pump member 44 of the ink nozzle member 42, in other words, the surface on an ink injection side of the nozzle member 42 to form an integrated structure.
Inventors:
Yukihisa Takeuchi
Nobuo Takahashi
Shigeki Okada
Nobuo Takahashi
Shigeki Okada
Application Number:
JP19473093A
Publication Date:
June 25, 2001
Filing Date:
August 05, 1993
Export Citation:
Assignee:
Nippon Insulator Co., Ltd.
Seiko Epson Corporation
Seiko Epson Corporation
International Classes:
B41J2/045; B41J2/055; B41J2/14; B41J2/16; (IPC1-7): B41J2/045
Domestic Patent References:
| JP421448A | ||||
| JP3255A | ||||
| JP3190742A |
Attorney, Agent or Firm:
Michio Nakajima (2 outside)
Michio Nakajima (2 outside)
Michio Nakajima (2 outside)