Cartridge apparatus for three-dimensional object printing

1. A three dimensional printing system comprising:

a printing head; and

a cartridge apparatus, the cartridge apparatus comprising:

a cartridge configured to store printing material to be supplied to the printing head;

a cartridge housing configured to hold the cartridge; and

a source of electromagnetic radiation positioned within the cartridge housing, wherein the source of electromagnetic radiation is configured to cure remnant printing material within the cartridge.

2. The three dimensional printing system of claim 1 , wherein the source of electromagnetic radiation is positioned within the cartridge.

3. The three dimensional printing system of claim 1 , wherein the cartridge comprises a casing and an inner bag and the source of electromagnetic radiation is positioned within the cartridge externally to the inner bag.

4. The three dimensional printing system of claim 1 , wherein the cartridge comprises a casing and an inner bag and the source of electromagnetic radiation is positioned within the inner bag.

5. The three dimensional printing system of claim 1 further comprising a sensor to measure the status of the printing material within the cartridge.

6. The three dimensional printing system of claim 1 , further comprising a controller and wherein the source of electromagnetic radiation is activated by the controller when the printing material is below a predetermined level.

7. The three dimensional printing system of claim 3 , wherein the inner bag is inflatable and is inflated by the controller prior to activating the electromagnetic radiation source.

8. The three dimensional printing system of claim 1 , wherein the printing material is a building material for three-dimensional printing.

9. The three dimensional printing system of claim 1 , wherein the cartridge is to store building material for three-dimensional printing.

10. The three dimensional printing system of claim 1 further comprising a cartridge sensing unit to sense whether or not the cartridge is in place within the cartridge housing.

11. The three dimensional printing system of claim 1 , wherein the source of electromagnetic radiation is activated by radio waves.

12. The three dimensional printing system of claim 1 , wherein the source of electromagnetic radiation comprises a light emitting diode (LED).

13. A method for curing remnant printing material contained within a used cartridge of a three dimensional printing system, the three dimensional printing system comprising a printing head and a cartridge apparatus, the method comprising:

activating an electromagnetic radiation source positioned within the cartridge apparatus, wherein the cartridge apparatus comprises the used cartridge, a cartridge housing that holds the used cartridge and the electromagnetic radiation source; and

curing the remnant printing material contained within the used cartridge by the electromagnetic radiation.

14. The method of claim 13 , wherein said cartridge comprises a casing and an inner bag and the electromagnetic radiation is channeled into the inner bag.

15. The method of claim 13 , wherein the cartridge comprises a casing and an inner bag and electromagnetic radiation is generated within the inner bag.

16. The method of claim 13 , wherein said cartridge comprises a casing and an inflatable inner bag and the method further comprises inflating the bag prior to activating the electromagnetic radiation source.

17. The method of claim 13 , wherein said cartridge comprises a casing and an inner bag and said method comprises creating a hole in the bag to channel radiation from the electromagnetic radiation source into the bag.

18. The method of claim 13 , wherein activating the electromagnetic radiation source is controlled by a controller of the three dimensional printing system.

19. The method of claim 13 , wherein said electromagnetic radiation source is activated by radio waves.