摘要:
A liquid supply device for supplying liquid to a recording head is disclosed. The device includes a liquid container for holding liquid to be supplied to the recording head, a first connecting portion for connecting the recording head and the liquid container, and a second connecting portion having one end thereof in the liquid container, and the other end being open to the air outside and positioned lower in height than the liquid discharge port of the recording head. The device is capable of adjusting negative pressure against the nozzle of the recording head to prevent ink leakage without depending on the deformation of an ink bag.
摘要:
A liquid discharge recording head includes an orifice plate having a discharge port formed therefor to discharge liquid, and a main body portion having liquid flow paths formed therein to communicate with an opening arranged at an edge portion thereof, the discharge port and the opening being bonded to communicate with each other. A sealing groove is arranged on the circumference of the opening along the bonded face, and a filler is filled in the sealing groove. This makes it possible to pour filler into the sealing groove from the injecting groove after the orifice plate is bonded to the face having the opening formed therefor to communicate the opening with the discharge port of the orifice plate to eliminate any gaps from which the filler leaks between the orifice plate and the face having an opening formed therefor, and carry out sealing without clogging the circumference of opening or discharge port.