Dual roll system integrating a delivery roll and a cleaning roll to extend the lifetime of the bcr system

An image forming apparatus comprising:

• a) an electrophotographic photoconductive member;
• b) a charging unit disposed in contact with the surface of the photoconductive member;
• c) a delivery unit disposed in contact with the surface of the charging roller, wherein the delivery unit applies a layer of functional material to the surface of the charging roller that in turn applies a layer of functional material to the surface of the photoconductive member;
• d) a first cleaning unit disposed in contact with a surface of the charging roller to clean the charging unit and reduce contamination of a surface the delivery unit;
• e) an electrostatic latent image forming unit that develops an electrostatic latent image on the photoconductive member;
• f) a toner developing unit for applying toner to the photoconductive member to develop a toner image on the photoconductive member;
• g) a transfer unit for transferring the developed toner image from the photoconductive member to a copy substrate or an intermediate member;
• and
• h) a second cleaning unit for cleaning the photoconductive member to remove toner particles.

An image forming apparatus comprising:

• a charging unit disposed in contact with the surface of the photoconductive member;
• a delivery unit disposed in contact with the surface of the charging unit, wherein the delivery unit applies a layer of functional material to the surface of the charging unit that in turn applies a layer of functional material to the surface of the photoconductive member;
• and
• a cleaning unit.