Developing assembly, process cartridge and image-forming method

   
   

In a developing assembly, a process cartridge and an image-forming method, a specific developer and a specific developer-carrying member are used in combination. The developer comprises toner particles containing at least a binder resin and a colorant, and conductive fine particles; the toner particles having a Circularity a of less than 0.970 as found from the following expression:

where L0 represents the circumferential length of a circle having the same projected area as a particle image, and L represents the circumferential length of a projected image of a particle. The developer-carrying member has at least a substrate and a resin coat layer formed on the substrate; the resin coat layer containing at least a coat layer binder resin and a positively chargeable material.

 
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> IMAGE FORMING APPARATUS ROTATIONALLY DRIVING IMAGE BEARING MEMBER AND CONTACT ELECTRIFYING MEMBER OF PROCESS CARTRIDGE AND PROCESS CARTRIDGE COMPRISING IMAGE BEARING MEMBER AND CONTACT ELECTRIFYING MEMBER

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