Cap configuration for a toner cartridge
Aspects described herein relate to a cap for a toner cartridge. In one example, the cap may be configured to close a toner supply opening of the toner cartridge. According to one or more aspects, the cap may include a sealing or covering portion configured to cover the toner supply opening and a shaft portion for rotatably supporting a to-be-detected rotary member. The to-be-detected rotary member 56 is rotatably supported around and fitted onto the shaft portion. Therefore, even if a toner supply opening of a cartridge is provided in a sidewall of the housing on a side where the to-be-detected rotary member is provided, e.g., a left sidewall, the toner supply opening and the to-be-detected rotary member can be provided in such a manner as to overlap each other.
1. A developing cartridge comprising:
a housing configured to store toner therein;
a developing roller extending in an extending direction;
a shaft part comprising:
a first surface fixed relative to the housing;
a second surface opposite to the first surface; and
a shaft extending from the second surface, and
a rotary member rotatable about the shaft,
wherein the housing has a toner supply opening, and
wherein the shaft part is configured to cover the toner supply opening.
2. The developing cartridge according to claim 1 ,
wherein the rotary member includes a plurality of gear teeth provided on a first part of a peripheral surface of the rotary member.
3. The developing cartridge according to claim 2 ,
wherein the rotary member includes a toothless portion provided on a second part of the peripheral surface of the rotary member.
4. The developing cartridge according to claim 1 ,
wherein the rotary member includes:
a first portion extending in the extending direction.
5. The developing cartridge according to claim 4 ,
wherein the rotary member further includes:
a second portion extending in the extending direction.
6. The developing cartridge according to claim 4 ,
wherein the first portion is contactable with a portion of an image forming apparatus.
7. The developing cartridge according to claim 6 ,
wherein the rotary member further includes:
a second portion extending in the extending direction, the second portion being contactable with a portion of the image forming apparatus.
8. A developing cartridge comprising:
a housing configured to store toner therein;
a developing roller extending in an extending direction;
a shaft part comprising:
a first surface fixed relative to the housing;
a second surface opposite to the first surface; and
a shaft extending from the second surface; and
a rotary member rotatable about the shaft,
a gear cover configured to cover at least a portion of the rotary member, the gear cover including:
a boss provided at an inner surface of the gear cover,
wherein the rotary member is rotatable about the boss.
9. The developing cartridge according to claim 8 ,
wherein a center axis of the shaft coincides with a center axis of the boss.
10. The developing cartridge according to claim 8 ,
wherein the rotary member includes a plurality of gear teeth provided on a first part of a peripheral surface of the rotary member.
11. The developing cartridge according to claim 10 ,
wherein the rotary member includes a toothless portion provided on a second part of the peripheral surface of the rotary member.
12. The developing cartridge according to claim 8 ,
wherein the rotary member includes:
a first portion extending in the extending direction.
13. The developing cartridge according to claim 12 ,
wherein the rotary member further includes:
a second portion extending in the extending direction.
14. The developing cartridge according to claim 12 ,
wherein the first portion is contactable with a portion of an image forming apparatus.
15. The developing cartridge according to claim 14 ,
wherein the rotary member further includes:
a second portion extending in the extending direction, the second portion being contactable with a portion of the image forming apparatus.