Process cartridge and electrophotographic image forming apparatus

An electrophotographic image forming apparatus for forming an image on a recording a material, to which a process cartridge is detachably mountable, comprising:

• mounting means for detachably mounting the process cartridge, said process cartridge including;
• an electrophotographic photosensitive drum;
• process means actable on said the electrophotographic photosensitive drum;
• a memory member for storing information about said process cartridge and for communicating with communicating means provided in the main assembly of the electrophotographic image forming apparatus;
• a cartridge frame supporting said the electrophotographic photosensitive drum, said process means and said memory member,
• wherein said memory member is provided on a surface which crosses with an axis of said electrophotographic photosensitive drum, and when said process cartridge is mounted to the main assembly of the apparatus, said process cartridge is urged by an urging member provided in the main assembly in a direction from a side provided with said memory member to a side opposite therefrom;
• feeding means for feeding the recording material;
• a main assembly antenna for receiving data sent from said memory member;
• an urging member for urging said process cartridge in a direction of an axis of said electrophotographic photosensitive drum to position said process cartridge relative to the main assembly of said image forming apparatus in the direction of the axis,
• said urging member is disposed at a position opposed to said memory member.

A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, comprising:

• an electrophotographic photosensitive drum;
• process means actable on said photosensitive drum;
• a memory member for storing information about said process cartridge to communicate with a main assembly antenna provided in the main assembly of the apparatus, said memory member being disposed on one axial end surface of said photosensitive drum,
• wherein when said process cartridge is mounted to the main assembly of the apparatus, said one axial end surface is pressed by an urging member provided in the main assembly of the apparatus, and the main assembly antenna is provided in the urging member, wherein when said urging member urges said one end surface, said memory antenna and said main assembly antenna are opposed to each other.

A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, comprising:

• an electrophotographic photosensitive drum;
• process means actable on said photosensitive drum;
• a memory member for storing information about said process cartridge to communicate with a main assembly antenna provided in the main assembly of the apparatus, said memory member being disposed on one axial end surface of said photosensitive drum,
• wherein when said process cartridge is mounted to the main assembly of the apparatus, said one axial end surface is pressed by an urging member provided in the main assembly of the apparatus, and the main assembly antenna is provided in the urging member, wherein when said urging member urges said one end surface, said memory antenna and said main assembly antenna are opposed to each other,
• wherein said memory member is provided on a cleaning frame, and said cleaning frame contains said photosensitive drum, a charging member for electrically charging said photosensitive drum, and the cleaning member for removing developer remaining of said photosensitive drum,
• wherein said memory member includes a base member;
• a storing element, provided on said base member, for storing information;
• a sending member, provided on said base member, for sending the information stored in said memory element to said memory antenna;
• and an outer casing member for casing said base member, said memory element, said sending member and said memory antenna;
• said process cartridge further comprising,
• a developing frame containing a developing roller for developing a latent image formed on said photosensitive drum, wherein said cleaning frame and said developing frame are rotatably coupled with each other.

An electrophotographic image forming apparatus for forming an image on a recording material, to which a process cartridge is detachably mountable, said apparatus comprising:

• (i) a main assembly antenna;
• (ii) an urging member;
• (iii) a mounting portion for mounting the process cartridge, the process cartridge including,
• an electrophotographic photosensitive drum;
• process means actable on said photosensitive drum;
• a memory member for storing information about said process cartridge to communicate with a main assembly antenna provided in the main assembly of the apparatus, said memory member being disposed on one axial end surface of said photosensitive drum,
• wherein when said process cartridge is mounted to the main assembly of the apparatus, said one axial end surface is pressed by an urging member provided in the main assembly of the apparatus, and the main assembly antenna is provided in the urging member, wherein when said urging member urges said one end surface, said memory antenna and said main assembly antenna are opposed to each other.