Apparatus for ejecting droplets
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsMasayuki Takata, Yoichiro Shimizu, Hiromitsu Mizutani
Life of this patent
Estimating the term…
Abstract
An apparatus for ejecting droplets is provided with a ejecting head for discharging droplets, an electric circuit board having an electric circuit formed on a surface of the electric circuit board, the electric circuit being connected to the ejecting head, a holder for supporting the ejecting head and the electric circuit board, and a cover that overlaps the surface of the electric circuit board when the cover is fixed to the holder. The apparatus for ejecting droplets is further provided with a seal member that fills a gap formed between a peripheral region of the surface of the electric circuit board and an inner surface of the cover. The seal member effectively prevents droplets mist from penetrating to the electric circuit.
Claims6
An apparatus for ejecting droplets, comprising:
- an ejecting head that discharges droplets;
- an electric circuit board having an electric circuit formed on a surface of the electric circuit board, the electric circuit being connected to the ejecting head;
- a holder that supports the ejecting head and the electric circuit board, the holder having an opening;
- a cover that overlaps the surface of the electric circuit board when the cover is fixed to the holder;
- and a seal member that fills at least a part of a gap formed between a peripheral region of the surface of the electric circuit board and an inner surface of the cover,
- further comprising:
- a support member provided within the holder to support an inner face of the electric circuit board;
- a biasing member that applies a force to the electric circuit board in a direction to separate the electric circuit board from the support member;
- and a local pressing member formed at an area corresponding to a part of the peripheral region of the electric circuit board, wherein the local pressing member presses the seal member more tightly at the area than the rest of the area when the cover is fixed to the holder.
An apparatus for ejecting droplets, comprising:
- an ejecting head that discharges droplets;
- an electric circuit board having an electric circuit formed on a surface of the electric circuit board, the electric circuit being connected to the ejecting head;
- a holder that supports the ejecting head and the electric circuit board, the holder having an opening;
- a cover that overlaps the surface of the electric circuit board when the cover is fixed to the holder;
- and a seal member that fills at least a part of a gap formed between a peripheral region of the surface of the electric circuit board and an inner surface of the cover,
- wherein the seal member is fixed to the peripheral region of the surface of the electric circuit board, and
- further comprising:
- a support member provided within the holder to support an inner face of the electric circuit board;
- a biasing member that applies a force to the electric circuit board in a direction to separate the electric circuit board from the support member;
- and a local pressing member formed on the cover at an area corresponding to a part of the peripheral region of the electric circuit board, wherein the local pressing member presses the seal member more tightly at the area than the rest of the area when the cover is fixed to the holder.
Dependencies are inferred from the claim text.