Abstract: A method for filling an ink cartridge for a printer in an ink-filling station. The type of cartridge to be filled is determined and information associated with the cartridge to be filled is sought in a database. The cartridge is placed in the station. The cartridge includes a wall separating a reservoir of the cartridge from the outside. An opening passing through the wall from the outside to the reservoir is pierced, the position of the opening depends on the information. The cartridge is filled by injecting ink through the opening under ink-injection conditions dependent on the information. The opening is sealed by cooling a deposit of molten plastics material in the opening under sealing conditions dependent on the information. An internal reservoir is taken to a set pressure by blowing or sucking air to pressurize or depressurize the internal reservoir.