The rotring scanner has instead of the usual ink container so-called capillary cartridge. Replacing the cartridge with a new one actually leads to the simultaneous total exchange of ink; this ensures full ink purity and a new pressure equalization system. This means in practice that the pressure equalization system does not have to be cleaned. Coloured tips help you find the right thickness.
The rotring scanner has instead of the usual ink container so-called capillary cartridge. Replacing the cartridge with a new one actually leads to the simultaneous total exchange of ink; this ensures full ink purity and a new pressure equalization system.