Patent ID: 6892045

Claim:
An image forming apparatus comprising: a latent image carrier for carrying a latent image; a developing unit for developing the latent image carried on said latent image carrier on a developing agent carrier which carries a developing agent formed of nonmagnetic toner and a magnetic carrier; a transfer unit for transferring a developing image on said latent image carrier onto a transfer paper; a fixing unit for fixing the toner on the transfer paper; a cleaning unit arranged downstream of said transfer unit to recover the nonmagnetic toner on said latent image carrier; and a recycling unit which conveys the toner recovered by the cleaning unit to said developing unit, and which shares one driving source with said latent image carrier; wherein said recycling unit comprises; an electromagnetic clutch for transmitting a driving force to said recycling unit when driving said latent image carrier; and a controller for controlling power supply to said electromagnetic clutch; wherein said electromagnetic clutch comprises a normally closed electromagnetic clutch which transmits the driving force in an OFF state thereof and which does not transmit the driving force in an ON state thereof.