A process cartridge (50, 250, 350, 450, 650, 750, 850) detachably mountable to a main assembly (100, 401) of an electrophotographic image forming apparatus, the main assembly including a first force application member (61, 165, 261, 361, 461, 761) and a second force application member (60, 164, 263, 360, 460, 760, 860), the process cartridge comprising: an electrophotographic photosensitive drum (30, 230, 330, 430, 630, 730, 830); a developing roller (42, 142, 242, 342, 442, 542, 642, 742) for developing an electrostatic latent image formed on the electrophotographic photosensitive drum; a drum unit (31, 231, 331, 431, 531, 631, 731) including the electrophotographic photosensitive drum; a developing unit (41, 241, 341, 441, 541, 641, 741, 841) including the developing roller and movable relative to the drum unit between a contact position in which the developing roller is in contact with the electrophotographic photosensitive drum and a spaced position in which the developing roller is spaced from the electrophotographic photosensitive drum; and a force receiving device (90, 190, 277, 370, 490, 690, 790, 890) including (i) a first force receiving portion (75, 179, 277a, 370a, 475, 575, 675, 775, 875) capable of receiving a first force from the first force application member, and (ii) a second force receiving portion (70, 178, 277b, 370b, 470, 670, 770, 870) (ii-i) movable toward a projected position in which the second force receiving portion is projected outwardly of the developing unit from a stand-by position which is retracted from the projected position by movement of the first force receiving portion caused by the first force and (ii-ii) capable of receiving a second force from the second force application member to move the developing unit from the contact position to the spaced position when taking the projected position. an electrophotographic photosensitive drum (30, 230, 330, 430, 630, 730, 830); a developing roller (42, 142, 242, 342, 442, 542, 642, 742) for developing an electrostatic latent image formed on the electrophotographic photosensitive drum; a drum unit (31, 231, 331, 431, 531, 631, 731) including the electrophotographic photosensitive drum; a developing unit (41, 241, 341, 441, 541, 641, 741, 841) including the developing roller and movable relative to the drum unit between a contact position in which the developing roller is in contact with the electrophotographic photosensitive drum and a spaced position in which the developing roller is spaced from the electrophotographic photosensitive drum; and a force receiving device (90, 190, 277, 370, 490, 690, 790, 890) including (i) a first force receiving portion (75, 179, 277a, 370a, 475, 575, 675, 775, 875) capable of receiving a first force from the first force application member, and (ii) a second force receiving portion (70, 178, 277b, 370b, 470, 670, 770, 870) (ii-i) movable toward a projected position in which the second force receiving portion is projected outwardly of the developing unit from a stand-by position which is retracted from the projected position by movement of the first force receiving portion caused by the first force and (ii-ii) capable of receiving a second force from the second force application member to move the developing unit from the contact position to the spaced position when taking the projected position.