Process cartridge chip and process cartridge

1 . A process cartridge chip, installed on a process cartridge, wherein the process cartridge is detachably installed on a main body of an image-forming apparatus, comprising:

a first grounding portion and a second grounding portion electrically connected to the first grounding portion, wherein:

the first grounding portion is connected to a reference-ground supply part disposed at the main body of the image-forming apparatus by electrically connecting to a first connecting part, in order to be connected to a potential reference point provided by the reference-ground supply part, the first connecting part including an electrical contact portion disposed on the main body of the image-forming apparatus; and

the second grounding portion is connected to the reference-ground supply part by electrically connecting to a second connecting part, wherein the first connecting part is different from the second connecting part, the second connecting part is not included in the first connecting part, and the first connecting part is not included in the second connecting part, the second connecting part including a conductive part disposed on the process cartridge.

2 . The process cartridge chip according to claim 1 , wherein:

the electrical contact portion is electrically connected to the reference-ground supply part; and the first grounding portion is electrically connected to the reference-ground supply part by electrically connecting to the electrical contact portion disposed on the main body of the image-forming apparatus, in order to be connected to the potential reference point.

3 . The process cartridge chip according to claim 2 , wherein:

the main body of the image-forming apparatus is further disposed with a connecting circuit board; the connecting circuit board is electrically connected to the electrical contact portion and the reference-ground supply part respectively; the first grounding portion is electrically connected to the reference-ground supply part by electrically connecting to the electrical contact portion and the connecting circuit board, in order to be connected to the potential reference point; and the first connecting part includes the electrical contact portion and the connecting circuit board.

4 . The process cartridge chip according to claim 1 , wherein:

the reference-ground supply part includes an image-forming control unit and/or a power supply unit.

5 . The process cartridge chip according to claim 1 , wherein:

the reference-ground supply part includes the first sheet metal part on the main body of the image-forming apparatus; the main body of the image-forming apparatus is detachably installed with an installation base including a plurality of accommodating portions for installing process cartridges; the installation base includes a second sheet metal part; when the second sheet metal part is electrically connected to the first sheet metal part, the second grounding portion is electrically connected to the reference-ground supply part by electrically connecting to the second sheet metal part; and the second connecting part includes the conductive part for electrically connecting the second grounding portion to the second sheet metal part.

6 . The process cartridge chip according to claim 1 , further including:

a first grounding contact and a substrate, wherein the first grounding contact is disposed on the substrate, and the first grounding portion is a portion of the first grounding contact.

7 . The process cartridge chip according to claim 6 , wherein:

the second grounding portion is another portion of the first grounding contact.

8 . The process cartridge chip according to claim 6 , further including:

a second grounding contact different from the first grounding contact, wherein the second grounding contact is disposed on the substrate, and the second grounding portion is a portion of the second grounding contact.

9 . The process cartridge chip according to claim 8 , wherein:

the second grounding portion and the first grounding portion are respectively on different surfaces of the substrate.

10 . A process cartridge, detachably installed on a main body of an image-forming apparatus, comprising:

a process cartridge chip and a cartridge body, wherein the process cartridge chip, installed on the process cartridge, includes a first grounding portion and a second grounding portion electrically connected to the first grounding portion, wherein:

the first grounding portion is connected to a reference-ground supply part disposed at the main body of the image-forming apparatus by electrically connecting to a first connecting part, in order to be connected to a potential reference point provided by the reference-ground supply part, the first connecting part including an electrical contact portion disposed on the main body of the image-forming apparatus; and

the second grounding portion is connected to the reference-ground supply part by electrically connecting to a second connecting part, wherein the first connecting part is different from the second connecting part, the second connecting part is not included in the first connecting part, and the first connecting part is not included in the second connecting part, the second connecting part including a conductive part disposed on the process cartridge.