Electrophotographic printing and cleaning of the developer ink bearing surface

An electrophotographic printing apparatus may include an image-forming member having a surface on which a latent electrostatic image can be formed and developed for transfer of the developed image to a substrate and a developer for depositing ink including charged particles onto the surface to develop the latent image. The developer may include an ink bearing surface from which ink is transferred and a cleaner for removing ink from the ink bearing surface. The developer may further include an adjustable power system generating an electric potential between the ink bearing surface and the cleaner such that charged ink particles remaining on the ink bearing surface after the transfer of ink to the image-forming member are removed from the ink bearing surface through attraction to the cleaner. A controller may adjust the power system such that a desired electric potential between the ink bearing surface and the cleaner is achieved.