A process cartridge (PY, PM, PC, PK) detachably mountable to a main assembly of image forming apparatus, the process cartridge comprising: a first unit including an image bearing member; a second unit including a developer carrying member, the second unit being rotatably connected with the first unit so as to be movable between a contact position in which the developer carrying member contacts the image bearing member and a spaced position in which the developer carrying member is spaced from the image bearing member; a force receiving portion (44b, 44h) engageable with an engageable member (61, 71) provided in the main assembly of the apparatus to receive from the engageable member a force for moving the second unit from the contact position to the spaced position; and an urging portion for urging the engageable member to move the engageable member to a retracted position in which movement of the process cartridge is permitted, when the process cartridge is mounted to the main assembly of the apparatus, the force receiving portion and the urging portion being provided on the second unit, wherein the process cartridge is configured such that, when the process cartridge is mounted to the main assembly and the second unit is in the contact position, the image bearing member, the force receiving portion and the urging portion are located on a downward side of the process cartridge, and the process cartridge being characterized in that the process cartridge is configured such that, when the process cartridge is mounted to the main assembly and the second unit is in the contact position, the force receiving portion faces upwardly toward a side where a rotational axis of the second unit is provided with respect to a tangential line to the force receiving portion as seen along an axial direction of the developer carrying member. a first unit including an image bearing member; a second unit including a developer carrying member, the second unit being rotatably connected with the first unit so as to be movable between a contact position in which the developer carrying member contacts the image bearing member and a spaced position in which the developer carrying member is spaced from the image bearing member; a force receiving portion (44b, 44h) engageable with an engageable member (61, 71) provided in the main assembly of the apparatus to receive from the engageable member a force for moving the second unit from the contact position to the spaced position; and an urging portion for urging the engageable member to move the engageable member to a retracted position in which movement of the process cartridge is permitted, when the process cartridge is mounted to the main assembly of the apparatus, the force receiving portion and the urging portion being provided on the second unit, wherein the process cartridge is configured such that, when the process cartridge is mounted to the main assembly and the second unit is in the contact position, the image bearing member, the force receiving portion and the urging portion are located on a downward side of the process cartridge, and the process cartridge being characterized in that the process cartridge is configured such that, when the process cartridge is mounted to the main assembly and the second unit is in the contact position, the force receiving portion faces upwardly toward a side where a rotational axis of the second unit is provided with respect to a tangential line to the force receiving portion as seen along an axial direction of the developer carrying member.