Print on demand camera system incorporating a detachable printing unit

A camera device comprising:

• a camera having a lens for viewing images, an image sensor for sensing a said image viewed by the lens, image processing means for processing a said image sensed by the image sensor, and a first PCMCIA interface configured to receive a signal from the image processing means;
• and
• a printer unit detachably engaged with the camera so that, when so engaged, the printer unit as a whole and the camera as a whole are substantially immovable relative to each other, the printer unit including
• a second PCMCIA interface engaged with the first PCMCIA interface so as to be capable of receiving a said signal from the first PCMCIA interface,
• a paper cartridge configured for holding a plurality of individual pages,
• a page-width ink jet printhead, and
• a paper feed configured to feed one page at a time, from the cartridge past the printhead to enable printing, on the page, by the printhead, of an image corresponding to a said signal received by the second PCMCIA interface.