The present invention relates to an optical article comprising on one of the main surfaces thereof an external water- andor oil-repellent coating, characterized in that a temporary coat of a dried polyurethane latex-based composition is directly deposited onto the external water- andor oil-repellent coating. Also, it is desirable to remanufacture print cartridge both to reduce waste and to save resources. A service can also be provisioned by receiving a request to provision the service for a user, storing a new service instance, and reconciling the new service instance with one or more previously stored service instances for the same service to determine effective service properties. This type of flow velocity profile reduces the overall required volumetric flow of the Raman medium in the cell without significantly affecting a quality of the Raman medium. In contrast to this, the screw tightening the temple clamp engages the clamp directly rather than pressing against the temple. A roller is rotatably connected to the frame for receiving a conventional electric vehicle battery thereupon.