US 11,886,141 B2
Image forming apparatus having a toner replenishment operation
Kensuke Umeda, Kanagawa (JP); Shinsuke Kobayashi, Kanagawa (JP); Kazuhiro Funatani, Kanagawa (JP); Takanori Watanabe, Kanagawa (JP); and Ai Suzuki, Tokyo (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jan. 28, 2022, as Appl. No. 17/586,857.
Application 17/586,857 is a continuation of application No. 17/034,387, filed on Sep. 28, 2020, granted, now 11,262,683.
Claims priority of application No. 2019-182216 (JP), filed on Oct. 2, 2019.
Prior Publication US 2022/0146974 A1, May 12, 2022
Int. Cl. G03G 15/00 (2006.01); G03G 15/08 (2006.01)
CPC G03G 15/556 (2013.01) [G03G 15/0856 (2013.01); G03G 15/5016 (2013.01); G03G 15/0867 (2013.01)] 22 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 image bearing member;
a developer container configured to accommodate toner;
a developing roller configured to develop an electrostatic image formed on the image bearing member into a toner image by using the toner accommodated in the developer container;
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;
an opening/closing portion configured to open the replenishment port in an open position and close the replenishment port in a closed position, the opening/closing portion moving from the closed position to the open position in a case where the replenishment container attached to the replenishment port is rotated;
a locking member configured to move between a restricting position in which the locking member restricts a movement of the opening/closing portion from the closed position to the open position, and an allowing position in which the movement of the opening/closing portion from the closed position to the open position is allowed;
a first display configured to display information related to the toner accommodated in the developer container; and
a second display configured to switch between a first state and a second state different from the first state, the developer container being capable of accepting more toner for replenishment in a case where the second display is in the second state than in a case where the second display is in the first state,
wherein the replenishment container is a squeezable toner pack which is squeezed by the user to promote discharge of toner in the toner pack.