Patent ID: 8660454

Claim:
An image forming apparatus comprising: a main body; a developing unit to form a visible image by feeding developer onto a photoconductor; a transfer unit placed in the main body to transfer the visible image formed on the photoconductor to a printing medium; a drawer configured to be slidably pushed into or pulled out of the main body and including a tray to support the developing unit and a front cover defining one surface of the main body and coupled to the tray so as to be moved along with the tray after passing through an operating section in which the front cover is moved relative to the tray; a coupling connector including a coupling rack to control connection of a coupling so as to transmit power to at least one inner roller of the developing unit; a Customer Replaceable Unit Module (CRUM) connector to control connection of a terminal so as to transmit developing information to the developing unit; a drive plate coupled to the front cover so as to vertically move the developing unit between a first position where the photoconductor comes into contact with the transfer unit and a second position where the photoconductor is spaced apart from the transfer unit; and a high-voltage connector to control connection of a terminal so as to apply high-voltage current to the developing unit, wherein the coupling connector, the CRUM connector and the high-voltage connector are disconnected respectively and the developing unit is moved to the second position by the drive plate when the front cover is open, and wherein the coupling connector, the CRUM connector and the high-voltage connector are connected respectively and the developing unit is moved to the first position by the drive plate when the front cover is closed.