Component for a four color printhead module

Details Component for a four color printhead module Component for a four color printhead module

2000-10-20

2003-05-20

Nguyen, Judy (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

06565193

ABSTRACT:

FIELD OF THE INVENTION
This invention relates to a printhead assembly. More particularly, the invention relates to a pagewidth inkjet printhead assembly.
SUMMARY OF THE INVENTION
According to the invention there is provided a component for a printhead module, the component including
a printhead chip;
a flexible printed circuit board (PCB) on which the chip is mounted; and
a carrier having fluid communication channels defined therein for supplying ink to the chip, the PCB being bonded to the carrier in a liquid tight manner so that the PCB forms a wall of an ink supply chamber of the printhead module.
In this specification, the term “wall” is to be understood in a broad sense, unless the context clearly indicates otherwise, to include any part of a structure including its floor and roof or ceiling.
The chip may be a microelectromechanical chip comprised of a number of nozzles.
The flexible PCB may include a film member on which are arranged a plurality of electrically conductive pathways, contacts and connections for providing power and data signals to the chip. The film may be a Tape Automated Bond (TAB) film.
The carrier, with the flexible PCB bonded thereto, may form a floor of the ink supply chamber.
The carrier may be a rigid structure having flow paths defined therein. The carrier may comprise a frame from which a plurality of ribs extend to define a pair of opposed comb-like structures and a central, longitudinally extending channel between the structures in which the chip is received.
The chip may be bonded sealingly to the flexible PCB on both sides of the PCB.


REFERENCES:
patent: 6095643 (2000-08-01), Cook et al.
patent: 6170931 (2001-01-01), Anderson et al.
patent: 2001/0006393 (2001-07-01), Kline et al.
patent: 2002/0122098 (2002-09-01), Sekiya
patent: 611653 (1994-08-01), None
patent: 08-085213 (1996-04-01), None

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