Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
1997-03-31
2001-07-10
Le, N. (Department: 2861)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
Reexamination Certificate
active
06257713
ABSTRACT:
CLAIM OF PRIORITY
This application makes reference to, incorporates the same herein, and claims all benefits accruing under 35 U.S.C. §119 arising from an application for Device for Refilling Color Inks in an Ink-Jet Printer earlier filed in the Korean Industrial Property Office on Mar. 29, 1996 and there duly assigned Ser. No. 9214/1996.
1. Field of the Invention
The present invention concerns an ink-jet printer, and more particularly a device for refilling color ink in an inkjet printer.
2. Description of the Related Art
In contemporary designs for ink cartridges in ink jet printers, the cartridge is provided with partitions that isolate the three colored inks. As the color ink is consumed to such an amount as to miss pixel dots in the printed image due to a lack of colored ink, there is a requirement for the refilling of the color ink. It is substantially impossible to separate the upper cap and middle cap of the carriage. To refill the ink, the boss of the upper cap is first detached from the engine of the printer, and the upper cap is removed to refill the magenta, yellow and cyan inks through the first, second and third holes in the middle cap. The middle cap in contemporary systems has no distinct marking to distinguish the three holes. Hence, there is a probability of refilling the color ink through an incorrect hole, so that the print head is damaged, resulting in its replacement.
SUMMARY OF THE INVENTION
It is an object to provide a device for facilitating the correct refilling of the color ink even without any color markings on the outside of the ink storage case in a color ink-jet printer.
It is another object to provide a device for extending the life of the printing head of a color ink-jet printer.
It is still another object to reduce the number of steps to assemble the cartridge of a color ink-jet printer.
According to an aspect of the present invention, a cartridge of a color ink-jet printer is made up of an ink storage case for storing color inks, an ejecting part for ejecting the color inks, an elastic part made of a sponge for holding the color inks with a constant pressure, partitions for isolating the color inks with each other, a middle cap for preventing the color inks from shifting and flowing out, and a device for refilling the color inks, the device for refilling the color inks including a first, second and third refilling part having different dimensions to distinguish the colors from one another.
According to another aspect of the present invention, a cartridge of a color ink-jet printer is made up of an ink storage case for storing color inks, an ejecting part for ejecting the color inks, a receptacle made of a sponge for holding the color inks with a constant pressure, partitions for isolating the color inks with each other, a middle cap for preventing the color inks from shifting and flowing out, and a device for refilling the color inks, the device for refilling the color inks including an upper cap provided with a first, second and third refilling part having different dimensions to distinguish the colors from one another, and ink supply bellows for supplying the color inks to the ink storage case. The ink supply bellows are respectively provided with a first, second and third adapter having respective dimensions to fit with those of the first, second and third refilling part so as to carry out the correct refilling, and are also provided with respective caps for preventing leakage of the color inks.
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Bushnell , Esq. Robert E.
Le N.
Nghiem Michael
Samsung Electronics Co,. Ltd.
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