Patent ID: 8238788

Claim:
An image forming apparatus comprising: a first process unit comprising a first photoconductor on which a first electrostatic latent image is formed and a first developing device that is arranged around the first photoconductor, the first developing device configured to contains decolorable toner and develop the first electrostatic latent image on the first photoconductor with the decolorable toner; a transfer belt that contacts the first photoconductor; and a second process unit comprising a second photoconductor on which an second electrostatic latent image is formed that contacts the transfer belt and is different from the first photoconductor and a second developing device that is arranged around the second photoconductor and contains non decolorable toner, the second process unit that is arranged downstream from the first process unit in a moving direction of the transfer belt with a starting point at where the transfer belt contacts a sheet.