Methods and apparatuses are provided for use with printing devices. One apparatus includes a housing forming a reservoir that is suitable for holding a printing material therein, and having an outlet feature configured to allow the printing material to be withdrawn from the reservoir and an inlet feature configured to allow an amount of printing material to be deposited within the reservoir, and a fill indicator operatively coupled to the housing. The fill indicator includes a breach mechanism that is configured to be detectibly altered when the inlet feature is used to deposit the amount of printing material into the reservoir, and an interface that is operatively coupled to the breach mechanism and configured to allow detection of at least one electrical characteristic of the breach mechanism.