Drum cartridge’s drum rotates by delivering the motor’s driving force generated by the rotation of main
motor (A) to drum (C) via drum driving gear (B).
The driving force of main motor (A) is delivered to development coupler driving gear (B) via serial train of
gears attached on the left frame of the machine to rotate the coupler rod (C) and this allows the driving
force of main motor to be finally delivered to Idle coupler gear (D) on toner cartridge. With the driving
force delivered Idle coupler gear’s rotation, the attached development roller, Add roller and Paddle
roller get rotated.