Ink cartridge for inkjet printer
AssigneeWoosim System Inc.
InventorIl Bok Lee
Life of this patent
Estimating the term…
Abstract
The present invention relates to an ink cartridge for an inkjet printer, the ink cartridge comprising a head chip of a print head to be surface-mounted on an FPCB by means of BGA so as to have each contact terminal, which is formed on the FPCB and the head chip, to be formed over a relatively wide area and therefore not require a high level of integration technology. Therefore, the ink cartridge enables easy manufacturing of the FPCB and the head chip and lowering of manufacturing cost. Also, since relatively low precision needs to be maintained during the mounting of the head chip on the FPCB such that each contact terminal comes into contact, the ink cartridge enables more convenient and faster manufacturing of the print head.
Claims8
An ink cartridge for an inkjet printer, the ink cartridge comprising:
- a housing body storing ink in an internal space;
- and
- a print head mounted on the housing body such as to discharge the ink stored in the housing body,
- wherein the print head comprises a flexible printed circuit board (FPCB) combined to one side of the housing body, and a head chip comprising a plurality of ejection nozzles to discharge ink and mounted on the FPCB,
- wherein the head chip is mounted on the FPCB in a ball grid array (BGA) manner,
- wherein the FPCB comprises a head chip mounting portion in which a plurality of board contact terminals are formed in the BGA manner in an inner region such that the head chip is mounted in the BGA manner and the head chip is mounted on the head chip mounting portion in the BGA manner as a plurality of chip contact terminals are formed in the BGA manner at locations corresponding to the plurality of board contact terminals,
- wherein the plurality of board contact terminals are spaced apart from each other at regular intervals along a first line passing through a center portion of the head chip mounting portion and second lines that are parallel to the first line and are bilaterally symmetrical to each other based on the first line, and
- wherein the board contact terminals disposed along the first line and the board contact terminals disposed along the second lines are misaligned in a direction perpendicular to the first line.
Dependencies are inferred from the claim text.