Cartridge, member constituting cartridge, and image forming apparatus

A cartridge comprising:

• a developing roller rotatable about a rotational axis thereof;
• a frame configured to support the developing roller;
• a lever connected to the frame, the lever being movable relative to the frame, and a part of the lever protruding beyond the frame;
• a spring deformable in response to a movement of the lever relative to the frame, the spring being capable of generating a first force that acts on the lever and generating a second force that acts on the frame;
• a coupling member configured to transmit a rotational force to the developing roller, the coupling member being rotatable about a rotational axis thereof, and the coupling member being movable relative to the frame in a direction of its rotational axis;
• a memory board;
• and
• an electrode portion connected to the memory board,
• wherein, when the cartridge is oriented with the lever and the electrode portion at a bottom portion of the cartridge, the protruding part of the lever protrudes downward beyond the frame, and
• wherein, as viewed in a rotational axis direction of the developing roller, the coupling member is positioned between the spring and the developing roller.

A cartridge comprising:

• a frame;
• a developing roller supported by the frame, the developing roller being rotatable about a rotational axis thereof;
• a lever connected to the frame, the lever being movable relative to the frame, and a part of the lever protruding beyond the frame;
• a spring deformable in response to a movement of the lever relative to the frame, the spring being capable of generating a first force that acts on the lever and generating a second force that acts on the frame;
• a coupling member configured to transmit a rotational force to the developing roller, the coupling member being rotatable about a rotational axis thereof, and the coupling member being movable relative to the frame in a direction of its rotational axis;
• a memory board;
• and
• an electrode portion connected to the memory board,
• wherein, when the cartridge is oriented with the lever and the electrode portion at a bottom portion of the cartridge, the protruding part of the lever protrudes downward from the frame, and
• wherein, as viewed in a rotational axis direction of the developing roller, a line extending between the rotational axis of the developing roller and the lever passes through the coupling member.

A cartridge comprising:

• a frame;
• a developing roller supported by the frame, the developing roller being rotatable about a rotational axis thereof;
• a lever connected to the frame, the lever being movable relative to the frame, and a part of the lever protruding beyond the frame;
• a spring deformable in response to a movement of the lever relative to the frame, the spring being capable of generating a first force that acts on the lever and generating a second force that acts on the frame;
• a coupling member configured to transmit a rotational force to the developing roller, the coupling member being rotatable about a rotational axis thereof, and the coupling member being movable relative to the frame in a direction of its rotational axis;
• a memory board;
• and
• an electrode portion connected to the memory board,
• wherein, when the cartridge is oriented with the rotational axis of the developing roller at a vertical position that is higher than a vertical position of a tip of the protruding part of the lever, the rotational axis of the coupling member and the electrode portion are at vertical positions between the vertical positions of the rotational axis of the developing roller and the tip of the protruding part of the lever.

A cartridge comprising:

• a developing roller rotatable about a rotational axis thereof;
• a frame configured to support the developing roller;
• a lever connected to the frame, the lever being rotatable relative to the frame, and a part of the lever protruding beyond the frame;
• a spring deformable in response to a movement of the lever relative to the frame, the spring being capable of generating a first force that acts on the lever and generating a second force that acts on the frame;
• a coupling member configured to transmit a rotational force to the developing roller, the coupling member being rotatable about a rotational axis thereof, and the coupling member being movable relative to the frame in a direction of its rotational axis;
• a memory board;
• and
• an electrode portion connected to the memory board,
• wherein, when the cartridge is oriented with the lever and the electrode portion at a bottom portion of the cartridge, the protruding part of the lever protrudes downward from the frame,
• wherein, as viewed in a rotational axis direction of the developing roller, the coupling member is positioned between the lever and the developing roller, and
• wherein a surface of the electrode portion is exposed to outside of the cartridge and intersects a direction in which the protruding part of the lever moves relative to the frame.

A cartridge comprising:

• a developing roller rotatable about a rotational axis thereof;
• a frame configured to support the developing roller;
• a lever connected to the frame, the lever being rotatable relative to the frame, and a part of the lever protruding beyond the frame;
• a spring deformable in response to a movement of the lever relative to the frame, the spring being capable of generating a first force that acts on the lever and generating a second force that acts on the frame;
• a coupling member configured to transmit a rotational force to the developing roller, the coupling member being rotatable about a rotational axis thereof, and the coupling member being movable relative to the frame in a direction of its rotational axis;
• a memory board;
• and
• an electrode portion connected to the memory board,
• wherein, when the cartridge is oriented with the lever and the electrode portion at a bottom portion of the cartridge, the protruding part of the lever protrudes downward beyond the frame,
• wherein, as viewed in a rotational axis direction of the developing roller, the coupling member is positioned between the spring and the developing roller, and
• wherein a surface of the electrode portion is exposed to outside of the cartridge and intersects a direction in which the protruding part of the lever moves relative to the frame.

A cartridge comprising:

• a frame;
• a developing roller supported by the frame, the developing roller being rotatable about a rotational axis thereof;
• a lever connected to the frame, the lever being rotatable relative to the frame, and a part of the lever protruding beyond the frame;
• a spring deformable in response to a movement of the lever relative to the frame, the spring being capable of generating a first force that acts on the lever and generating a second force that acts on the frame;
• a coupling member configured to transmit a rotational force to the developing roller, the coupling member being rotatable about a rotational axis thereof, and the coupling member being movable relative to the frame in a direction of its rotational axis;
• a memory board;
• and
• an electrode portion connected to the memory board,
• wherein, when the cartridge is oriented with the lever and the electrode portion at a bottom portion of the cartridge, the protruding part of the lever protrudes downward from the frame, and
• wherein, as viewed in a rotational axis direction of the developing roller, a line extending between the rotational axis of the developing roller and the lever passes through the coupling member, and
• wherein a surface of the electrode portion is exposed to outside of the cartridge and intersects a direction in which the protruding part of the lever moves relative to the frame.

A cartridge comprising:

• a frame;
• a developing roller supported by the frame, the developing roller being rotatable about a rotational axis thereof;
• a lever connected to the frame, the lever being rotatable relative to the frame, and a part of the lever protruding beyond the frame;
• a spring deformable in response to a movement of the lever relative to the frame, the spring being capable of generating a first force that acts on the lever and generating a second force that acts on the frame;
• a coupling member configured to transmit a rotational force to the developing roller, the coupling member being rotatable about a rotational axis thereof, and the coupling member being movable relative to the frame in a direction of its rotational axis;
• a memory board;
• and
• an electrode portion connected to the memory board,
• wherein, when the cartridge is oriented with the rotational axis of the developing roller at a vertical position that is higher than a vertical position of a tip of the protruding part of the lever, the rotational axis of the coupling member and the electrode portion are at vertical positions between the vertical positions of the rotational axis of the developing roller and the tip of the protruding part of the lever, and
• wherein a surface of the electrode portion is exposed to outside of the cartridge and intersects a direction in which the protruding part of the lever moves relative to the frame.