Method of producing electrophotographic photosensitive member

A method of producing an electrophotographic photosensitive member which comprises a support and a charge transporting layer formed thereon, comprising the steps of:

• preparing a dispersion liquid comprising:
• particles comprising a charge transporting substance,
• particles comprising a binder resin, and
• liquid medium;
• forming a coat of the dispersion liquid;
• heating the coat to dissolve the particles comprising the charge transporting substance and the particles comprising the binder resin with liquid medium;
• and
• drying the coat to form the charge transporting layer;
• wherein liquid medium comprises at least one selected from the group consisting of propylene glycol monopropyl ether, propylene glycol-n-butyl ether, 3,3-dimethyl-1-hexanol, ethyl acetyl lactate, 2,2,4-trimethyl-1-pentanol, 2-methyl-2-ethyl-1-pentanol, ethylene glycol monoethyl ether acrylate, butyl formate, phenetole, diethylene glycol dimethyl ether, and methyl propylene glycol acetate.

A method of producing an electrophotographic photosensitive member which comprises a support and a charge transporting layer formed thereon, comprising the steps of:

• preparing a dispersion liquid comprising:
• particles comprising a charge transporting substance and a the binder resin, and
• liquid medium;
• forming a coat of the dispersion liquid;
• heating the coat at a temperature at which a difference between an SP value of the charge transporting substance and the SP value of a liquid whose boiling point under one atmospheric pressure is the highest among liquids contained in liquid medium is 6.8 or lower to dissolve the particles with liquid medium;
• and
• drying the coat to form the charge transporting layer;
• wherein
• a difference between the SP value of the charge transporting substance and the SP value of liquid medium at 25° C. under one atmospheric pressure is 7.5 or more.

A method of producing an electrophotographic photosensitive member which comprises a support and a charge transporting layer formed thereon, comprising the steps of:

• preparing a dispersion liquid comprising:
• particles comprising a charge transporting substance,
• particles comprising a the binder resin, and
• liquid medium;
• forming a coat of the dispersion liquid;
• heating the coat at a temperature at which a difference between an SP value of the charge transporting substance and the SP value of a liquid whose boiling point under one atmospheric pressure is the highest among liquids contained in liquid medium is 6.8 or lower to dissolve the particles comprising the charge transporting substance and the particles comprising the binder resin with liquid medium;
• and
• drying the coat to form the charge transporting layer;
• wherein
• a difference between the SP value of the charge transporting substance and the SP value of liquid medium at 25° C. under one atmospheric pressure is 7.5 or more.