Image forming apparatus and process cartridge

• Main Author: KAKESHITA TOMOMI
• Format: Patent
• Language: English
• Published: 07.08.2003
• Edition: 7
• Subjects: CINEMATOGRAPHY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS

An image forming apparatus includes transferring means for transferring, after a first color developer image is transferred onto an image receiving material in a first image forming station, a second color developer image onto the image receiving material in a second image forming station; wherein the first image forming station includes a first image bearing member, first charging means for electrically charging the first image bearing member, and a first developer carrying member for carrying the the first color developer to develop an electrostatic image formed on the first image bearing member with the first color developer; wherein the second image forming station includes a second image bearing member, second charging means for electrically charging the second image bearing member, and a second developer carrying member for carrying the the second color developer to develop an electrostatic image formed on the second image bearing member with the second color developer; the second developer carrying member is capable of collecting a residual developer from the second image bearing member simultaneously with a developing operation thereto; the second color developer carried on the second developer carrying member is contacted to the second image bearing member; a moving direction of the second developer carrying member is opposite to a moving direction of the second image bearing member at a development position; the second charging means includes a second charging member contactable to the second image bearing member, and the second charging member triboelectrically charge the residual developer on the second image bearing member to a regular polarity.