Developing cartridge having electrode

A developing cartridge comprising:

• a casing configured to accommodate developer therein;
• a developing roller rotatable about a first axis extending in a first direction, the developing roller including a developing roller shaft, the developing roller being positioned at one side of the casing in a second direction which is different from the first direction;
• a supply roller rotatable about a second axis extending in the first direction, the supply roller including a supply roller shaft;
• a bearing positioned at an outer surface of the casing in the first direction, the bearing having a supply-roller-shaft insertion hole through which one end portion of the supply roller shaft in the first direction is inserted, and a first screw insertion hole;
• a developing electrode having a plate shape extending in the second direction, the developing electrode positioned at the outer surface of the casing, the developing electrode being positioned farther from the outer surface of the casing than the bearing is from the outer surface of the casing in the first direction, the developing electrode including a developing-roller-shaft cover positioned at one side of the developing electrode in the second direction, the developing-roller-shaft cover being electrically connected to the developing roller shaft, the developing electrode having a contact surface positioned at another side of the developing electrode in the second direction and a second screw insertion hole positioned at the another side of the developing electrode;
• and
• a screw inserted into both the first screw insertion hole and the second screw insertion hole, the screw fixing the developing electrode and the bearing to the outer surface of the casing.