Compact ink reservoir

Reservoir for a CIJ type inkjet printer, comprising:

• a 1st compartment, comprising at least one 1st part called the upper part, and a 2nd part called the lower part and delimited by a convergent shaped wall, or the section of which becomes narrower or smaller with increasing distance, and a 2nd compartment delimited by a lateral wall, the 1st compartment being separable from the 2nd compartment and, when both compartments are assembled together, in a leak tight manner relative to each other, the 2nd part of the 1st compartment being placed in the 2nd compartment, the wall of said 2nd compartment laterally surrounding said 2nd part of the 1st compartment,
• at least a 1st duct for drawing off a first liquid from the 1st compartment, and at least a 2nd conduit for drawing off a second liquid from the 2nd compartment;
• a cover to close the 1st compartment.