Ink box

Abstract

A cartridge body partitioned into foam chambers and ink chambers and having a first welding part and a second welding part, a lid having a third welding part engaged and welded with the first welding part of the cartridge body and a fourth welding part formed on the bottom thereof in which the second welding part is inserted. Ink heads provided on the bottom of the cartridge body eject ink, and ink filters provided on upper sides of the ink heads to prevent foreign materials or bubbles from flowing in. The first welding part has a first section horizontally protruded in cross-section and a second section vertically protruded to the first section, and the third welding part has a third section vertically protruded, a fourth section horizontally protruded, and a fifth section in a diagonal cross-sectioned shape connecting the third section and the fourth section. The second welding part has a vertical rectangular shape in cross-section, and the fourth welding part has a concave groove formed in which the second welding part is inserted.

Description

Technical field [0001] The present invention relates to an ink cartridge, and more specifically, to an ink cartridge of an imaging device, in which a box body and a box cover are welded to each other more precisely to avoid mixing of ink in the box, thereby ensuring proper production and maintenance in the box. Reduce the negative pressure and reduce manufacturing defects. Background technique [0002] Generally, ink cartridges capable of supplying ink during printing are used in equipment such as inkjet printers. The conventional ink cartridge mainly includes: a box body, which contains ink and is provided with an ink filter and an inkjet head; and a box cover. The box body and the box cover are welded together by the welding part. [0003] figure 1 with figure 2 It is a cross-sectional view and a plan view showing a conventional box body 102 that can respectively contain three colors of ink. Such as figure 1 with figure 2 As shown, the box body 102 includes: a foam chamber...

AI Technical Summary

Problems solved by technology

[0016] However, because the first and second welded portions 122 and 124 of the box body 102 of the conventional ink cartridge form a triangle, and the third and fourth welded portions 126 and 128 of the cartridge cover 104 form a plane, these portions relatively slide during ultrasonic welding and Insufficient transfer of vibrational energy between them

Because of this phenomenon, the welding is only partially completed, so the seal between the cartridge body 102 and the cartridge cover 104 is not achieved, the negative pressure in the ink chamber 108 is not formed, and the following phenomenon occurs: the ink flows downward due to gravity head 117

[0017] Moreover, in the case where there are unwelded parts in the second welded portion and the fourth welded portion 124 and 128, inks of different colors that should be separated by the second spacer 112 and the third spacer 113 are mixed together, and then reduced print quality

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