Electrophotographic photosensitive member process cartridge and electrophotographic apparatus

A process cartridge comprising:

• an electrophotographic photosensitive member comprising a support member and a photosensitive layer formed thereon;
• and
• at least one means selected from the group consisting of charging means, development means and cleaning means;
• wherein the electrophotographic photosensitive member and the at least one means are integrally supported and detachable from the body of the electrophotographic apparatus;
• and
• a surface layer of the electrophotographic photosensitive member contains diorganopolysiloxane represented by the following formula (1):
• wherein R1 to R6 independently represent a substituted or unsubstituted hydrocarbon group;
• B represents a substituted or unsubstituted organic group containing a perfluoroalkyl group;
• D represents a group selected from the group consisting of a substituted or unsubstituted organic group containing a polyoxyalkylene group, a substituted or unsubstituted alkyl group having at least 12 carbon atoms, and a substituted or unsubstituted organic group having a siloxane chain;
• E1 and E2 independently represent a group selected from groups of R1, B and D;
• X represents an integer of 0 to 1000;
• and Y and Z independently represent an integer of 1 to 1000.

An electrophotographic apparatus comprising an electrophotographic photosensitive member comprising a support member and a photosensitive layer formed thereon, charging means, exposure means, development means and transfer means, wherein a surface layer of the electrophotographic photosensitive member contains diorganopolysiloxane represented by the following formula (1):

• wherein R1 to R6 independently represent a substituted or unsubstituted hydrocarbon group;
• B represents a substituted or unsubstituted organic group containing a perfluoroalkyl group;
• D represents a group selected from the group consisting of a substituted or unsubstituted organic group containing a polyoxyalkylene group, a substituted or unsubstituted alkyl group having at least 12 carbon atoms, and a substituted or unsubstituted organic group having a siloxane chain;
• E1 and E2 independently represent a group selected from groups of R1, B and D;
• X represents an integer of 0 to 1000;
• and Y and Z independently represent an integer of 1 to 1000.