Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation blade

A developing cartridge comprising:

• a casing configured to accommodate therein toner;
• a developing roller;
• a supply roller configured to supply the toner to the developing roller;
• a layer thickness regulation blade in contact with a circumferential surface of the developing roller;
• a developing electrode electrically connected to the developing roller;
• and
• a supply electrode electrically connected to the supply roller and the layer thickness regulation blade, the supply electrode comprising:
• an electrode member electrically connected to a rotation shaft of the supply roller, the electrode member being movable in a direction perpendicular to the rotation shaft of the supply roller;
• and
• a connection member electrically connecting the electrode member and the layer thickness regulation blade, the connection member being in contact with the electrode member and the layer thickness regulation blade,
• wherein the electrode member is movable relative to the connection member in the direction perpendicular to the rotation shaft of the supply roller in a state where the electrode member is in contact with the connection member.