Patent ID: 6169869
Filing Date: 2001-01-02
Classification: G03G

Abstract:
An image forming apparatus comprising an image bearing member, a developer carrying member for carrying thereon a developer to transport the developer to a developing zone, and a regulation member provided in touch with the surface of the developer carrying member to regulate the coat weight of the developer carried thereon, said developer carrying member carrying and transporting the developer to the developing zone, and an electrostatic latent image formed on said image bearing member being developed and rendered visible while applying a development bias to said developer carrying member, wherein wherein said image bearing member comprises a conductive substrate and a photosensitive layer formed thereon, and the photosensitive layer contains at least one polycarbonate resin (I) having a viscosity-average molecular weight not more than 1.5.times.10.sup.4 and at least one polycarbonate resin (II) having a viscosity-average molecular weight more than 1.5.times.10.sup.4, the polycarbonate resin (I) being contained in a proportion of from 30% by weight to 95% by weight based on the total weight of the polycarbonate resins (I) and (II), wherein on said developer carrying member, the developer has a coat weight not more than 1.5 mg/cm.sup.2 at the developing zone after its regulation by said regulation member.