Image forming apparatus and process cartridge

A process cartridge detachably mountable to a main assembly of an image forming apparatus, said main assembly comprising 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 said process cartridge is detachably mountable to said second image forming station, said process cartridge comprising:

• an image bearing member;
• charging means for electrically charging said image bearing member;
• a developer carrying member for carrying a second color developer and for developing an electrostatic image formed on said image bearing member with a second color developer, wherein said developer carrying member is capable of collecting a residual developer from said image bearing member simultaneously with a developing operation thereof;
• wherein said second color developer carried on said second developer carrying member is contacted to said second image bearing member;
• wherein a moving direction of said developer carrying member is opposite to a moving direction of said image bearing member at a developing position;
• wherein said charging means includes a charging member contactable to said image bearing member, and said charging member triboelectrically charges the residual developer on said image bearing member to a regular polarity.

An image forming apparatus comprising:

• 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 said first image forming station includes a first image bearing member, first charging means for electrically charging said first image bearing member, and a first developer carrying member for carrying the said first color developer to develop an electrostatic image formed on said first image bearing member with said first color developer;
• wherein said second image forming station includes a second image bearing member, second charging means for electrically charging said second image bearing member, and a second developer carrying member for carrying the said second color developer to develop an electrostatic image formed on said second image bearing member with said second color developer;
• wherein said second developer carrying member is capable of collecting a residual developer from said second image bearing member simultaneously with a developing operation thereto;
• wherein said second color developer carried on said second developer carrying member is contacted to said second image bearing member;
• wherein said second color developer carried on said second developer carrying member is contacted to said second image bearing member.

A process cartridge detachably mountable to a main assembly an image forming apparatus, said main assembly comprising 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 said process cartridge is detachably mountable to said second image forming station, said process cartridge comprising:

• an image bearing member;
• charging means for electrically charging said image bearing member;
• a developer carrying member for carrying a second color developer and for developing an electrostatic image formed on said image bearing member with a second color developer, wherein said developer carrying member is capable of collecting a residual developer from said image bearing member simultaneously with a developing operation thereof;
• wherein said second color developer carried on said second developer carrying member is contacted to said second image bearing member;
• wherein a moving direction of said developer carrying member is opposite to a moving direction of said image bearing member at a developing position.