US 12,405,562 B2
Image forming apparatus having toner replenishment container control
Ryo Morihara, Tokyo (JP); and Kensuke Umeda, Kanagawa (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on May 30, 2024, as Appl. No. 18/678,184.
Application 18/678,184 is a continuation of application No. 18/102,124, filed on Jan. 27, 2023, granted, now 12,032,324.
Application 18/102,124 is a continuation of application No. 17/580,704, filed on Jan. 21, 2022, granted, now 11,592,781, issued on Feb. 28, 2023.
Application 17/580,704 is a continuation of application No. 17/037,803, filed on Sep. 30, 2020, granted, now 11,262,686, issued on Mar. 1, 2022.
Claims priority of application No. 2019-184767 (JP), filed on Oct. 7, 2019.
Prior Publication US 2024/0319655 A1, Sep. 26, 2024
Int. Cl. G03G 15/00 (2006.01); G03G 15/08 (2006.01); G03G 21/00 (2006.01); G03G 21/12 (2006.01); G03G 21/16 (2006.01)
CPC G03G 21/12 (2013.01) [G03G 15/0863 (2013.01); G03G 15/0886 (2013.01); G03G 15/556 (2013.01); G03G 21/1633 (2013.01); G03G 21/1647 (2013.01)] 5 Claims
OG exemplary drawing
 
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;
a display portion;
a controller configured to notify a user of information related to a toner amount by using 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;
an input portion through which a user performs an allowing operation of allowing toner replenishment after a notification is displayed on the display portion,
wherein the information related to a toner amount is the notification about toner, to be supplied from the replenishment container, which goes to waste.