Electrophotographic photosensitive member and apparatus using same

An electrophotographic unit, comprising:

• a electrophotographic photosensitive member, and at least one member selected from the group consisting of a charging means, a developing means and a cleaning means and integrally supported together with the photosensitive member to form a single unit which can be connected to or released from an apparatus body as desired;
• said electrophotographic photosensitive member comprising an electroconductive support, and an intermediate layer and a photosensitive layer disposed in this order on the support, wherein said intermediate layer comprises a reaction product of a polyol compound comprising at least one of a polyol compound [1] represented by Formula (1) shown below and a phosphated polyol compound with a polyisocyanate compound:
• ##STR55## wherein A denotes ##STR56## B denotes --R.sup.4 --O--, A and B may be connected at random or in blocks with each other, Z denotes an active hydrogen compound residue;
• R.sup.1 is an alkylene group having 1-9 carbon atoms;
• R.sup.2 is an alkylene group having 1-10 carbon atoms;
• R.sup.3 is an alkyl group, alkenyl group, aryl group or arlkyl group having 1-20 carbon atoms;
• R.sup.4 is an alkylene group having 2-10 carbon atoms;
• k is a number of 1-12;
• m is a number of 1-250;
• n is a number of 0-100;
• and p is a number of 0-5.

An electrophotographic apparatus, comprises:

• a photosensitive member, a latent image-forming means, a means for developing a latent image and a means for transferring a developed image to a transfer-receiving means;
• said photosensitive member comprising an electroconductive support, and an intermediate layer and a photosensitive layer disposed in this order on the support, wherein said intermediate layer comprises a reaction product of a polyol compound comprising at least one of a polyol compound [I] represented by Formula (1) shown below and a phosphated polyol compound with a polyisocyanate compound:
• ##STR57## wherein A denotes ##STR58## B denotes --R.sup.4 --O--, A and B may be connected at random or in blocks with each other, Z denotes an active hydrogen compound residue;
• R.sup.1 is an alkylene group having 1-9 carbon atoms;
• R.sup.2 is an alkylene group having 1-10 carbon atoms;
• R.sup.3 is an alkyl group, alkenyl group, aryl group or aralkyl group having 1-20 carbon atoms;
• R.sup.4 is an alkylene group having 2-10 carbon atoms;
• k is a number of 1-12;
• m is a number of 1-250;
• n is a number of 0-100;
• and p is a number of 0-5.

A facsimile apparatus, comprising:

• an electrophotographic apparatus equipped with an electrophotographic photosensitive member and a receiving means for receiving image data from a remote terminal;
• said electrophotographic photosensitive member comprising an electroconductive support, and an intermediate layer and a photosensitive layer disposed in this order on the support, wherein said intermediate layer comprises a reaction product of a polyol compound comprising at least one of a polyol compound [I] represented by Formula (1) shown below and a phosphated polyol compound with a polyisocyanate compound:
• ##STR59## wherein A denotes ##STR60## B denotes --R.sup.4 --O--, A and B may be connected at random or in blocks with each other, Z denotes an active hydrogen compound residue;
• R.sup.1 is an alkylene group having 1-9 carbon atoms;
• R.sup.2 is an alkylene group having 1-10 carbon atoms;
• R.sup.3 is an alkyl group, alkenyl group, aryl group or aralkyl group having 1-20 carbon atoms;
• R.sup.4 is an alkylene group having 2-10 carbon atoms;
• k is a number of 1-12;
• m is a number of 1-250;
• n is a number of 0-100;
• and p is a number of 0-5.