CONTAINER AND METHOD OF STORAGE AND DISTRIBUTION OF LIQUID Russian patent published in 2013 - IPC B41J2/175 

FIELD: printing.

SUBSTANCE: in the method of measuring the amount of liquid, such as ink or solvent remaining in the container such as a removable cartridge for an inkjet printer with a continuous flow of ink, the reservoir is used having an interior space with variable capacity for storage. The reservoir is made with the ability to create pressure reduction in the interior space, and as liquid is drawn into the printer, pressure reduction steadily increases in size, so that the volume of liquid remaining in the reservoir can be calculated from the known minimum drawing pressure required for the further drawing the liquid from the reservoir into the printer. The containers used in accordance with this method have distributing opening for liquid, made with the ability of liquid distribution when drawing pressure outside of this opening is less than the pressure in the interior space, as well as with the ability to prevent the air flow into the interior space of the reservoir while the liquid distribution.

EFFECT: providing the ability to replace the container during the printer operation and change the type of ink or solvent prior to their exhaustion in the container, and the ability to control the amount of liquid in partially used containers, if case of necessity of their re-use either with the printer, from which they were removed, or with the other compatible printer.

14 cl, 5 dwg