Inkjet cartridge with ink reservoir core and releasable housing

1. A print roll unit that comprises

an elongate ink reservoir core defining a plurality of ink chambers which each extend along the core, the chambers being isolated to store respective inks;

a roll of print media including a tubular former in which the core can be received and a length of print media which is wound upon the former; and

a housing including a pair of molded covers which can be fastened together in a releasable manner to house the roll of print media,

wherein the core includes an elongate molded part defining the ink chambers, and a rubber sealing cap which can be engaged with an end of the molded part to seal the ink chambers.

2. A print roll unit as claimed in claim 1 , wherein an end of the core defines a plurality of serpentine breathing channels each in fluid communication with a respective ink chamber to facilitate the egress of ink from the ink chambers.

3. A print roll unit as claimed in claim 2 , wherein the core further includes sealing tape which covers the breathing channels.

4. A print roll unit as claimed in claim 1 , wherein the core defines a plurality of longitudinally extending ribs which can engage with the inside of the tubular former.

5. A print roll unit as claimed in claim 1 , wherein the molded covers define complementary formations to enable the molded covers to be snap fitted together.

6. A print roll unit as claimed in claim 1 , wherein one of the molded covers defines an elongate slot through which the print media can exit the print roll unit.

7. A print roll unit as claimed in claim 1 , further including a plurality of pinch rollers which are each rotationally mounted to the housing and are arranged to de-curl the print media as it is unwound from the roll.

8. A camera including a print roll unit as claimed in claim 1 , and a printer in fluid communication with the core and configured to print captured images on the print media with ink stored in the ink chambers.