Paper cartridge for camera having detachable printer unit

A camera including:

• a casing having an elongate socket that is open at one end and closed at the other end;
• an image sensor located at the closed end, the image sensor being configured to capture images;
• a first industry standard interface located at the closed end of the socket;
• a printer unit including an ink ejection printhead, the printer unit being releasably received within the socket, the printer unit having a second interface compatible with the first interface, whereby the printer unit is detachably engaged with the casing by inserting the unit into the socket to engage the first and second interfaces together proximal to the image sensor;
• and
• an elongate paper cartridge being configured for holding a plurality of individual paper pages upon which ink is to be printed by the printhead, the paper cartridge being configured to be releasably received with one of its major faces first in a docking bay of the printer unit so that the paper cartridge is located with one of its ends proximal to the image sensor and the other of its ends proximal to the printer unit;
• wherein, when the printer unit is engaged in the socket, substantially the entire paper cartridge is located within the socket.