Electrophotographic photosensitive member with polyether polyols-polyisocyanate intermediate layer and apparatus

An electrophotographic apparatus 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 wherein said intermediate layer comprises a reaction product of a mixture including a polyol compound [I], a polyol compound [II] having an OH equivalent different from that of the polyol compound [I] and a polyisocyanate compound;
• said polyol compound [I] is a polyether polyol compound having an OH equivalent of at least 500 and 2-60 OH groups per molecule;
• and said polyol compound [II] is a polyol compound having an OH equivalent of at most 300.

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 wherein said intermediate layer comprises a reaction product of a mixture including a polyol compound [I], a polyol compound [II] having an OH equivalent different from that of the polyol compound [I] and a polyisocyanate compound;
• said polyol compound [I] is a polyether polyol compound having an OH equivalent of at least 500 and 2-60 OH groups per molecule;
• and said polyol compound [II] is a polyol compound having an OH equivalent of at most 300.

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 mixture including a polyol compound [I], a polyol compound [II] having an OH equivalent different from that of the polyol compound [I] and a polyisocyanate compound;
• said polyol compound [I] is a polyether polyol compound having an OH equivalent of at least 500 and 2-60 OH groups per molecule;
• and said polyol compound [II] is a polyol compound having an OH equivalent of at most 300.