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AssigneeCanon Kabushiki Kaisha
InventorsMasataka Eida, Kazuo Iwata, Toshinori Hasegawa
Estimating the term…
The present invention provides a liquid repellent member applied to an ink jet head, including a carbon substrate, and a liquid repellent film formed on a surface of the carbon substrate and formed by bonding between carbon and fluorine.
A method for supplying ink to an ink jet head comprising a liquid repellent member having an FC ink repellent film formed by forming a through-hole in a carbon substrate and electrolytically processing the substrate in a molten salt of fluoride, an air suction hole provided in the liquid repellent member, an ink jet discharge element, an ink supply port for supplying ink to the ink jet discharge element, an ink absorbing body, an ink jet head frame and an air suction device, the liquid repellent member and the ink absorbing body being arranged in contact with each other, said method comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Machining: laser machining
By shaping pulses: using ultrashort pulses, i.e. pulses of 1 ns or less
Working by laser beam, e.g. welding, cutting or boring: using absorbing layers on the workpiece, e.g. for marking or protecting purposes
By boring: of fluid openings, e.g. nozzles, jets
Term ended 7 Feb 2022 (estimated)
1. Field of the Invention
The present invention relates to a liquid repellent member, a method for manufacturing such a liquid repellent member, an ink jet head using such a liquid repellent member, a method for manufacturing such an ink jet head, and a method for supplying ink.
2. Description of the Related Art
FIGS. 1A, 1B, 1C, 1D and 1E are schematic sectional views showing steps for forming discharge ports in a discharge port constituting member (orifice plate) formed by a carbon substrate according to the present invention;
FIG. 2A is an exploded perspective view of an ink jet head and FIG. 2B is a perspective view of the assembled ink jet head;
FIG. 3 is a flow chart for explaining an example of an ink jet head manufacturing method according to a first embodiment of the present invention;
First of all, a general embodiment of the present invention will be explained with reference to the accompanying drawings.
FIGS. 1A to 1E are schematic sectional views showing steps for forming discharge ports in a discharge port constituting member (orifice plate) formed by a carbon substrate according to the present invention.
Hereinafter, the discharge port constituting member will be referred to as an orifice plate.