Process cartridge and image forming apparatus

A cartridge configured to be detachably mounted to a main body of an image forming apparatus, the cartridge comprising:

• a drum unit including a photosensitive drum, a pressing portion, and a first frame, the photosensitive drum being rotatable about a first axis that extends in a first direction, the first frame including (i) a first side wall, (ii) a second side wall opposite to the first side wall with respect to the first direction, and (iii) a bottom wall connecting the first side wall and the second side wall;
• and
• a developing unit detachably attached to the drum unit, the developing unit including:
• a developing roller rotatable about a second axis that extends in a second direction;
• a memory configured to store information, the memory including a memory electrode;
• and
• a second frame including (i) a third side wall, (ii) a fourth side wall opposite to the third side wall with respect to the second direction, (iii) a toner accommodating portion located between the third side wall and the fourth side wall, and (iv) a force receiving portion,
• wherein, in an attached state where the developing unit is attached to the drum unit and the second frame is located above the bottom wall, the pressing portion presses the force receiving portion such that the developing roller is pressed against the photosensitive drum, and
• wherein, in a mounted state where the cartridge is mounted to the main body, and as viewed in the first direction, the bottom wall includes a first end and a second end opposite to the first end with respect to a horizontal direction, the first end is further from the photosensitive drum than the second end is from the photosensitive drum, and
• wherein, in the mounted state, the first end of the bottom wall is directly below the second frame,
• wherein the first end includes an edge extending in the first direction, and
• wherein, in the mounted state, the edge is directly below the second frame, and
• wherein, in the attached state, the force receiving portion projects from the third side wall in the second direction, and a distance between the force receiving portion and the photosensitive drum is shorter than a distance between the memory electrode and the photosensitive drum.