Patent ID: 7899382

Claim:
A process cartridge detachably attachable to an image forming apparatus, the process cartridge comprising: an image bearing member configured to bear an image on a surface thereof; a toner cleaning device including a cleaning blade contacting a surface of the image bearing member, an edge of the cleaning blade facing opposite a rotation direction of the image bearing member; and a lubricant supplier configured to supply lubricant to the image bearing member, the lubricant supplier comprising: a brush roller configured to contact and scrape the lubricant to apply the scraped lubricant to the surface of the image bearing member; and a lubricant regulating blade configured to regulate a depth of a layer of the lubricant applied by the brush roller to the surface of the image bearing member, and to extend in a counter blade manner opposite the rotation direction of the image bearing member, the lubricant regulating blade including: a ridge line extending crosswise to a longitudinal axis of the image bearing member and configured to contact the surface of the image bearing member at a non-perpendicular angle to the longitudinal axis of the image bearing member; a first face opposed to the surface of the image bearing member and located upstream from a contact portion of the ridge line and the surface of the image bearing member in a direction of movement of the surface of the image forming member; and a second face opposed to the surface of the image bearing member and located downstream from the contact portion of the ridge line and the surface of the image bearing member in the direction of movement of the surface of the image forming member, the first face and the second face intersecting at the ridge line, an inner surface of the first face and an inner surface of the second face forming an obtuse angle therebetween; wherein the cleaning blade, the brush roller, and the lubricant regulating blade are formed in this order upstream to downstream relative to the rotational direction of the image bearing member.