Developing cartridge

A developing cartridge, comprising:

• a developing roller, having a rotation axis;
• a developing frame, configured to support the developing roller, wherein the developing frame includes a cartridge body, a driving-end cover and a conductive-end cover;
• and the driving-end cover is at an end of the cartridge body along a length direction of the cartridge body, and the conductive-end cover is at another end of the cartridge body along the length direction of the cartridge body;
• a first separation contact part, connected to the conductive-end cover, wherein the first separation contact part is capable of rotating between a first position and a second position relative to the conductive-end cover;
• a first tension spring, connected to the conductive-end cover and the first separation contact part, wherein when the first separation contact part rotates from the first position to the second position relative to the conductive end cover, the first tension spring is stretched;
• a force-receiving part, at an end of the cartridge body along the length direction of the cartridge body and disposed at a same end as the driving-end cover, wherein the force-receiving part is configured to receive and transmit a driving force to rotate the developing roller;
• and
• a conductive part, wherein the conductive part is at an inner side of the conductive-end cover and electrically connected to an end of the developing roller;
• and an opening is formed on the conductive-end cover, and a portion of the conductive part is exposed through the opening.

A developing cartridge, comprising:

• a developing roller, having a rotation axis;
• a developing frame, configured to support the developing roller, wherein the developing frame includes a cartridge body, a driving-end cover, a conductive-end cover, and a driving-end bearing;
• the driving-end bearing at an end of the cartridge body along a length direction of the cartridge body, and the conductive-end cover is at another end of the cartridge body along the length direction of the cartridge body;
• and the driving-end cover is disposed at an outer side of the drive-end bearing;
• a first swing rod, connected to the conductive-end cover, wherein the first swing rod is capable of rotating between a first position and a second position relative to the conductive-end cover;
• a second swing rod, connected to the drive-end bearing, wherein the second swing rod is capable of rotating between the first position and the second position relative to the driving-end bearing;
• a first tension spring, connected to the conductive-end cover and the first swing rod, wherein when the first swing rod rotates from the first position to the second position relative to the conductive-end cover, the first tension spring is stretched to be deformed;
• a second tension spring, connected to the driving-end bearing and the second swing rod, wherein when the second swing rod rotates from the first position to the second position relative to the driving-end bearing, the second tension spring is stretched to be deformed;
• a force-receiving part, disposed on the driving-end bearing, wherein the force-receiving part is configured to receive and transmit a driving force to rotate the developing roller;
• and
• a conductive part, wherein the conductive part is at an inner side of the conductive-end cover and electrically connected to an end of the developing roller;
• and an opening is formed on the conductive-end cover, and a portion of the conductive part is exposed through the opening.

A developing cartridge, comprising:

• a developing roller, having a rotation axis;
• a developing frame, configured to support the developing roller, wherein the developing frame includes a cartridge body, a driving-end cover, a conductive-end cover, and a driving-end bearing;
• the driving-end bearing at an end of the cartridge body along a length direction of the cartridge body, and the conductive-end cover is at another end of the cartridge body along the length direction of the cartridge body;
• and the driving-end cover is disposed at an outer side of the drive-end bearing;
• a first separation contact part, connected to the conductive-end cover, wherein the first separation contact part is capable of rotating relative to the conductive-end cover;
• a second separation contact part, connected to the driving-end bearing, wherein the second separation contact part is capable of rotating relative to the driving-end bearing;
• a first tension spring, connected to the conductive-end cover and the first separation contact part, wherein when the first separation contact part rotates relative to the conductive-end cover, the first tension spring is stretched to be deformed;
• a second tension spring, connected to the driving-end bearing and the second separation contact part, wherein when the second separation contact part rotates relative to the driving-end bearing, the second tension spring is stretched to be deformed;
• a force-receiving part, at an end of the developing frame along the length direction of the cartridge body and disposed at a same end as the driving-end cover, wherein the force-receiving part is configured to receive and transmit a driving force to rotate the developing roller;
• and
• a conductive part, wherein the conductive part is at an inner side of the conductive-end cover and electrically connected to an end of the developing roller;
• and an opening is formed on the conductive-end cover, and a portion of the conductive part is exposed through the opening.