The filter used in the WIMS system is a consumable, disposable item, and should be replaced at least once per month – more frequently during periods of high white ink consumption. Disconnect power to the WIMS unit so that the white ink is not circulating. Carefully disconnect the luer connectors (2 x M lock) at either side of the WIMS filter, and remove the filter. Replace the filter, taking care that it is placed in the correct orientation for inflow of ink.