IP Library › Granted Patent US 12,032,324
Granted Patent B2
US 12,032,324 · App. 18/102,124 · Granted Jul 9, 2024

Image forming apparatus having toner replenishment container control

Inventors: Ryo Morihara (Tokyo, JP); Kensuke Umeda (Kanagawa, JP)
Assignee: CANON KABUSHIKI KAISHA
G03G21/12G03G15/0863G03G15/0886G03G15/556G03G21/1633G03G21/1647
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Quick Facts
Patent No.
US 12,032,324
App. No.
18/102,124
Granted
Jul 9, 2024
Kind
B2
Abstract

An image forming apparatus to and from which a replenishment container accommodating toner is detachable and which forms an image on a recording material includes an apparatus body, and a cartridge including an image bearing member, a developer container to accommodate toner, and a developing portion to develop an electrostatic latent image formed on the image bearing member into a toner image by using the toner. A replenishment port allows replenishment of toner from the replenishment container, which is arranged outside of the image forming apparatus, to the developer container therethrough in a state where the replenishment container is attached to the replenishment port, and a controller notifies a user of information related to a toner amount if it is determined that a lifetime of the cartridge will expire before a sum of toner accommodated in the developer container and toner accommodated in the replenishment container is consumed.

Claims (36)

1. An image forming apparatus to and from which a replenishment container accommodating toner is attachable and detachable and which is configured to form an image on a recording material, the image forming apparatus comprising:

an apparatus body;

a process unit comprising:

an image bearing member;

a developer container configured to accommodate toner;

a developing portion configured to develop an electrostatic latent image formed on the image bearing member into a toner image by using the toner accommodated in the developer container; and

a replenishment port configured to allow replenishment of toner from the replenishment container, which is arranged outside of the image forming apparatus, to the developer container therethrough in a state where the replenishment container is attached to the replenishment port; and

a controller configured to notify a user of information related to a toner amount in a case where it is determined that a lifetime of the process unit will expire before a sum of toner accommodated in the developer container and toner accommodated in the replenishment container is consumed,

wherein the replenishment container is a toner pack which is squeezed by the user to promote discharge of toner in the toner pack.

2. The image forming apparatus according to claim 1 , wherein the lifetime of the process unit is less than a threshold corresponding to a printable sheet number depending on the sum of toner.

3. The image forming apparatus according to claim 1 , wherein the information related to a toner amount is about toner, to be replenished, which goes to waste.

4. An image forming apparatus which is configured to form an image on a recording material, the image forming apparatus comprising:

an apparatus body;

a process unit comprising:

an image bearing member;

a developer container configured to accommodate toner;

a developing portion configured to develop an electrostatic latent image formed on the image bearing member into a toner image by using the toner accommodated in the developer container; and

a replenishment port configured to allow replenishment of toner from a replenishment container, which accommodates toner and is arranged outside of the image forming apparatus, to the developer container therethrough in a state where the replenishment container is attached to the replenishment port;

a display portion; and

a controller configured to display a notification related to a toner amount on the display portion in a case where it is determined that a lifetime of the process unit will expire before a sum of toner accommodated in the developer container and toner accommodated in the replenishment container is consumed,

wherein the replenishment container is a toner pack which is squeezed by a user to promote discharge of toner in the toner pack.

5. The image forming apparatus according to claim 4 , wherein the lifetime of the process unit is less than a threshold corresponding to a printable sheet number depending on the sum of toner.

6. The image forming apparatus according to claim 4 , further comprising an input portion through which a user performs an allowing operation of allowing toner replenishment after the notification is displayed on the display portion.

7. The image forming apparatus according to claim 4 , wherein the notification related to a toner amount on the display portion is a notification about toner, to be replenished, which goes to waste.

8. An image forming apparatus to and from which a replenishment container accommodating toner is attachable and detachable and which is configured to communicate with an information processing apparatus comprising a display portion and form a toner image on a recording material, the image forming apparatus comprising:

an apparatus body;

a process unit comprising:

an image bearing member;

a developer container configured to accommodate toner;

a developing portion configured to develop an electrostatic latent image formed on the image bearing member into a toner image by using the toner accommodated in the developer container; and

a replenishment port configured to allow replenishment of toner from the replenishment container, which is arranged outside of the image forming apparatus, to the developer container therethrough in a state where the replenishment container is attached to the replenishment port; and

a controller configured to display a notification related to a toner amount on the display portion in a case where it is determined that a lifetime of the process unit will expire before a sum of toner accommodated in the developer container and toner accommodated in the replenishment container is consumed,

wherein the replenishment container is a toner pack which is squeezed by a user to promote discharge of toner in the toner pack.

9. The image forming apparatus according to claim 8 , wherein the lifetime of the process unit is less than a threshold corresponding to a printable sheet number depending on the sum of toner.

10. The image forming apparatus according to claim 8 , further comprising an input portion through which a user performs an allowing operation of allowing toner replenishment after the notification is displayed on the display portion.

11. The image forming apparatus according to claim 8 , wherein the notification related to a toner amount on the display portion is a notification about toner, to be replenished, which goes to waste.

Priority Claims (1)
JP 2019-184767 · Oct 7, 2019 · national
Continuity (3)
Continuation 17580704 · Jan 21, 2022
Continuation 17037803 · Sep 30, 2020
Related Publication 20230168623A1 · Jun 1, 2023
Cited By (1)
US 12,405,562