Developer cartridge

A developer cartridge for holding a developer to be supplied into a developer storage hopper, comprising:

• a container box having an opening fitted to a replenishing opening of the developer storage hopper, said container box being substantially filled with the developer;
• and
• a sealing member removably bonded to a rim of the opening of the container box to seal the developer in the container box, wherein the container box is detachably set to the developer storage hopper with the sealing member opposed to the replenishing opening of the developer storage hopper,
• wherein the developer cartridge is fitted to the developer storage hopper with a center of the container box being shifted relative to a center of the developer storage hopper along a stripping direction,
• wherein at least one end face of the container box forms an acute angle of inclination with respect to the replenishing opening.

A developer cartridge for holding a developer supplied to a developer storage hopper, comprising:

• a container box having an open face which is fitted to a replenishing opening of the developer storage hopper, said container box being substantially filled with the developer;
• and
• a sealing member removably bonded to a rim of the opening of the container box to seal the developer in the container box, wherein the container box is detachably set to the developer storage hopper with the sealing member opposed to the replenishing opening of the developer storage hopper,
• wherein the container box is shaped so that the developer is uniformly supplied from the developer cartridge to the developer storage hopper through the replenishing opening from a stripping start area of the sealing member to a stripping end area of the sealing member along the stripping direction,
• wherein at least a portion of a first end face of said container box adjacent to the stripping start area is substantially parallel to a second end face of said container box adjacent to said stripping end area and opposed to said first end face, and
• wherein the first end face of the container box at the stripping start side of the sealing member and the second end face at the stripping end side of the scaling member are each inclined in the stripping direction of the sealing member.

A developer cartridge for holding a developer supplied to a developer storage hopper, comprising:

• a container box having an open face which is fitted to a replenishing opening of the developer storage hopper, said container box being substantially filled with the developer;
• a sealing member removably bonded to a rim of the opening of the container box to seal the developer in the container box, wherein the container box is detachably set to the developer storage hopper with the sealing member opposed to the replenishing opening of the developer storage hopper,
• wherein the container box is shaped so that the developer is uniformly supplied from the developer cartridge to the developer storage hopper through the replenishing opening from a stripping start area of the sealing member to a stripping end area of the sealing member along the stripping direction,
• wherein at least a portion of a first end face of said container box adjacent to the stripping start area is opposed to a second end face of said container box adjacent to said stripping end area, and wherein a height of the second end face is greater than a height of the first end face;
• and
• a bottom face opposed to said replenishing opening, said bottom face being inclined between and connected to said first and said second end faces.

A developer cartridge for holding a developer supplied to a developer storage hopper, comprising:

• a container box having an open face which is fitted to a replenishing opening of the developer storage hopper, said container box being substantially filled with the developer;
• and
• a sealing member removably bonded to a rim of the opening of the container box to seal the developer in the container box, wherein the container box is detachably set to the developer storage hopper with the sealing member opposed to the replenishing opening of the developer storage hopper,
• wherein the container box is shaped so that the developer is uniformly supplied from the developer cartridge to the developer storage hopper through the replenishing opening from a stripping start area of the sealing member to a stripping end area of the sealing member along the stripping direction,
• wherein at least a portion of a first end face of said container box adjacent to the stripping start area is substantially parallel to a second end face of said container box adjacent to said stripping end area and opposed to said first end face;
• a bottom face opposed to said replenishing opening, said bottom face being inclined between and connected to said first and said second end faces;
• and
• a first side face and a second side face opposing each other, wherein said first and second side faces extend between said first and said second end faces along both the replenishing opening and the bottom face, wherein said first and second side faces form a non-perpendicular angle with respect to at least a portion of the bottom face.