Electrophotographic printer - has recovery of toner from light sensitive drum surface during operation for return to developer section

摘要

An image formation apparatus includes a toner collector inside development unit 50 for collecting toner remaining on the surface of a photosensitive drum 40 and supplying it to a development unit 50. The collector has a cleaning blade 15 inside a case 51 which houses the development unit, thereby supplying toner removed by the cleaning blade to the development unit. The combined unit is sited after the conductive unit 11 and optical system 2 so that the drum is already imagewise exposed before it is cleaned by blade 15. <IMAGE>