Cleaning device, charging device, and image forming apparatus

1. A cleaning device comprising:

a first cleaning member provided at a first side of a curved grid electrode plate that is curved in a short-side direction, the first cleaning member being pressed against the curved grid electrode plate to clean the first side of the curved grid electrode plate;

a receiving member provided at a second side of the curved grid electrode plate, the receiving member receiving a pressing load applied by the first cleaning member; and

a moving unit that moves the first cleaning member and the receiving member in a long-side direction of the curved grid electrode plate,

wherein the first cleaning member and the receiving member are formed such that a pressure based on the load that is applied to an end portion of the curved grid electrode plate in the short-side direction is higher than a pressure based on the load that is applied to a central portion of the curved grid electrode plate in the short-side direction.

2. The cleaning device according to claim 1 , wherein the receiving member includes a second cleaning member that cleans the second side of the curved grid electrode plate.

3. The cleaning device according to claim 2 , wherein a surface of the first cleaning member at an end of the first cleaning member in the long-side direction of the curved grid electrode plate is formed so as to be constricted inward at a central area of the first cleaning member in the short-side direction of the curved grid electrode plate.

4. The cleaning device according to claim 3 , wherein a surface of the second cleaning member at an end of the second cleaning member in the long-side direction of the curved grid electrode plate is formed so as to be constricted inward at a central area of the second cleaning member in the short-side direction of the curved grid electrode plate.

5. The cleaning device according to claim 2 , wherein a surface of the second cleaning member at an end of the second cleaning member in the long-side direction of the curved grid electrode plate is formed so as to be constricted inward at a central area of the second cleaning member in the short-side direction of the curved grid electrode plate.

6. The cleaning device according to claim 1 , wherein a surface of the first cleaning member at an end of the first cleaning member in the long-side direction of the curved grid electrode plate is formed so as to be constricted inward at a central area of the first cleaning member in the short-side direction of the curved grid electrode plate.

7. A charging device comprising:

the cleaning device according to claim 1 ;

the curved grid electrode plate; and

a charging unit that charges a member to be charged through the curved grid electrode plate.

8. An image forming apparatus comprising:

a member to be charged by the charging device according to claim 7 ;

an exposure device that forms an electrostatic latent image on the member to be charged;

a developing device that develops the electrostatic latent image, which is formed on the member to be charged, with toner to form a toner image; and

a transfer device that transfers the toner image formed on the member to be charged onto a transfer member.

9. The cleaning device according to claim 1 , wherein the receiving member extends across the curved grid electrode in the short-side direction.