Liquid discharging head, liquid discharging method, head cartridge, liquid discharging apparatus, liquid discharging printing method, printing system, head kit and head recovery method

A liquid discharge head comprising:

• a first liquid path communicating with a discharge port;
• a second liquid path including a bubble generating area for generating a bubble in liquid by heat application thereto;
• and
• a movable member positioned between said first liquid path and said bubble generating area, having a free end at the side of said discharge port and adapted to displace said free end toward said first liquid path, based on a pressure resulting from bubble generation in said bubble generating area thereby guiding said pressure toward said discharge port;
• wherein said movable member is provided with heating means.

A liquid discharge head comprising:

• a heat generating member for generating a bubble in liquid;
• a discharge port so formed as to oppose, in substantially parallel manner, to the bottom face of a liquid path constituting a flow path for said liquid;
• a movable member positioned between the bottom face of said liquid path and said discharge port and having a free end adapted to displace from a first position by said bubble;
• and
• a fixed opposing face opposed to a face of said movable member at the side of bottom face of said liquid path when said free end of the movable member is displaced by said bubble, and serving to guide said bubble toward said discharge port in cooperation with said movable member at the displacement thereof;
• wherein said movable member is provided with heating means.

A liquid discharge head comprising:

• a first liquid path communicating with a discharge port;
• a second liquid path including a bubble generating area for generating a bubble in liquid by heat application thereto;
• a movable member positioned between said first liquid path and said bubble generating area, having a free end at the side of said discharge port and adapted to displace said free end from a first position toward said first liquid path, based on a pressure resulting from bubble generation in said bubble generating area thereby guiding said pressure toward said discharge port;
• and
• a fixed opposing face opposed to a heat generating face of said movable member when said free end of the movable member is displaced by said bubble, and serving to guide said bubble toward said discharge port in cooperation with said movable member at the displacement thereof;
• wherein said movable member is provided with heating means.

A liquid discharge head comprising:

• a first liquid path communicating with a discharge port;
• a second liquid path including a bubble generating area for generating a bubble in liquid by heat application thereto;
• and
• a movable member positioned between said first liquid path and said bubble generating area, having a free end at the side of said discharge port and adapted to displace said free end toward said first liquid path, based on a pressure resulting from bubble generation in said bubble generating area thereby guiding said pressure toward said discharge port;
• wherein said head further comprises heating means for directly heating liquid in said first and second liquid paths, with heating in said first liquid path being independent of heating in said second liquid path.

A liquid discharge apparatus comprising:

• a liquid discharge head including a grooved member integrally provided with plural discharge ports for discharging liquid, plural grooves for constituting first liquid paths respectively corresponding to and directly communicating with said discharge ports and a recess constituting a first common liquid chamber for supplying said plural first liquid paths with the liquid;
• an element substrate provided with plural heat generating members for generating bubble in the liquid by giving heat thereto;
• and a partition wall positioned between said grooved member and said element substrate, constituting a part of the walls of second liquid paths corresponding to said heat generating members, and provided, in positions opposed to said heat generating members, with movable members adapted to displace toward said first liquid paths by a pressure based on said bubble generation;
• and
• temperature adjustment means for effecting independent temperature adjustments of the liquid in said first and second liquid paths.

A liquid discharge apparatus comprising:

• a liquid discharge head including a first liquid path communicating with a discharge port, a second liquid path including a bubble generating area for bubble generation in liquid by heat supply thereto, a movable member positioned between said first liquid path and said bubble generating area, having a free end at the side of the discharge port and displacing said free end toward said first liquid path by a pressure resulting from bubble generation in said bubble generating area thereby guiding said pressure toward the discharge port of said first liquid path, and a sub heater for temperature adjustment of liquid in said first and second liquid paths, with temperature adjustment of liquid in said first liquid path being independent of temperature adjustment of liquid in said second liquid path;
• drive signal supply means for supplying a drive signal for causing said liquid discharge head to discharge the liquid;
• and
• recovery means for said liquid discharge head.

A liquid discharge apparatus comprising:

• a liquid discharge head including a grooved member integrally provided with plural discharge ports for discharging liquid, plural grooves for constituting first liquid paths respectively corresponding to and directly communicating with said discharge ports and a recess constituting a first common liquid chamber for supplying said plural first liquid paths with the liquid;
• an element substrate provided with plural heat generating members for generating bubble in the liquid by giving heat thereto;
• a partition wall positioned between said grooved member and said element substrate, constituting a part of the walls of second liquid paths corresponding to said heat generating members, and provided, in positions opposed to said heat generating members, with movable members adapted to displace toward said first liquid paths by a pressure based on said bubble generation;
• and a sub heater provided in said partition wall for temperature adjustment of liquid in said first and second liquid paths, with temperature adjustment of liquid in said first liquid path being independent of temperature adjustment of liquid in said second liquid path;
• drive signal supply means for supplying a drive signal for causing said liquid discharge head to discharge the liquid;
• and
• recovery means for said liquid discharge head.

A liquid discharge apparatus comprising:

• a liquid discharge head including a first liquid path communicating with a discharge port, a second liquid path including a bubble generating area for bubble generation in liquid by heat supply thereto, a movable member positioned between said first liquid path and said bubble generating area, having a free end at the side of the discharge port and displacing said free end toward said first liquid path by a pressure resulting from bubble generation in said bubble generating area thereby guiding said pressure toward the discharge port of said first liquid path, and a sub heater for temperature adjustment of liquid in said first and second liquid paths, with temperature adjustment of liquid in said first liquid path being independent of temperature adjustment of liquid in said second liquid path;
• print medium transport means for transporting a print medium for receiving the liquid discharged from said liquid discharge head;
• and
• recovery means for said liquid discharge head.

A liquid discharge apparatus comprising:

• a liquid discharge head including a grooved member integrally provided with plural discharge ports for discharging liquid, plural grooves for constituting first liquid paths respectively corresponding to and directly communicating with said discharge ports and a recess constituting a first common liquid chamber for supplying said plural first liquid paths with the liquid;
• an element substrate provided with plural heat generating members for generating bubble in the liquid by giving heat thereto;
• a partition wall positioned between said grooved member and said element substrate, constituting a part of the walls of second liquid paths corresponding to said heat generating members, and provided, in positions opposed to said heat generating members, with movable members adapted to displace toward said first liquid paths by a pressure based on said bubble generation;
• and a sub heater provided in said partition wall for temperature adjustment of liquid in said first and second liquid paths, with temperature adjustment of liquid in said first liquid path beinq independent of temperature adjustment of liquid in said second liquid path;
• print medium transport means for transporting a print medium for receiving the liquid discharged from said liquid discharge head;
• and
• recovery means for said liquid discharge head.

A liquid discharge head comprising:

• a first liquid path communicating with a discharge port;
• a second liquid path including a bubble generating area for generating a bubble in liquid by heat application thereto;
• a movable member positioned between said first liquid path and said bubble generating area, having a free end at the side of said discharge port and adapted to displace said free end toward said first liquid path, based on a pressure resulting from bubble generation in said bubble generating area thereby guiding said pressure toward said discharge port;
• and
• heating means on said movable member in a position corresponding to said bubble generating area in said second liquid path.