Patent ID: 8051561

Claim:
A method of manufacturing an image drum, the method comprising: preparing a drum body comprising a slot formed longitudinally on the drum body; fixing a control circuit board inside the drum body using a fixing member such that a plurality of terminals of the control circuit board corresponds to the slot formed longitudinally on the drum body; coating an entire external surface of the drum body with a first insulation layer; forming connection parts by removing portions of the first insulation layer which correspond to the terminals of the control circuit board, and concurrently forming electrode forming grooves having the first insulation layer as a base on the external surface of the drum body at portions of the first insulation layer where the connection parts are not formed; and forming a plurality of ring electrodes by applying a fluent conductive substance to the electrode forming grooves and the connection parts of the external surface of the drum body, and by filling the electrode forming grooves with the fluent conductive substance by a capillary force to connect the plurality of ring electrodes to respective terminals from among the plurality of terminals.