IMAGE FORMING APPARATUS

An image forming apparatus is provided to position a maximum eccentric line of driving gears and an engagement line of a driving motor on the same line, and dispose the driving gears differently at each different rotation angle in the direction opposite to a rotational direction of the driving gear, thereby preventing color mismatch by making angular velocities of respective driving gears equal. Driving gears(11a'~11d') are directly engaged with motors(20). A maximum eccentric line of each driving gear and an engagement point between the driving gears and the motors are disposed to be sequentially positioned on the same line according to the speed of a processor. The maximum eccentric line is indicated on the driving gears, and a rotation angle is indicated on the bracket. Four driving gears are provided, and the motors are installed between two driving gears or individually installed at each driving gear.