A storage container for storing inkjet cartridges, when removed from the carriage of a printer, having a capping housing for holding one or more caps, associated with each cartridge, for capping the printhead of the cartridge, wherein the caps are easily removable from the storage container by a user. The provision of manually removable cap allows the cap of a storage container to be matched to a particular cartridge having a specific printhead, ink formulation and lifetime. This ensures the efficacy of the cartridge is maintained during storage and prevents contamination of one cartridge by ink residue that may be left on a cap by another cartridge, which can damage the printhead due to chemical interaction between the different ink formulations.