# US 2019/0317439 A1 · Image forming apparatus that performs display for replacement of developer container > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0317439 A1 - Document ID: US20190317439A1 - Status: Published application - Kind: A1 - Application number: 16/376,272 - Filed: 2019-04-05 - Published: 2019-10-17 - Earliest claimed: 2018-04-12 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Yojiro Mandachi; Hidenori Matsumoto - Web page: https://patentgrep.com/patent/US20190317439A1 ## CPC - G03G 15/5016: {User-machine interface; Display panels; Control console} - G03G 21/1633: {using doors or covers (G03G21/1638 takes precedence)} - G03G 15/0867: {cylindrical developer cartridges, e.g. toner bottles for the developer replenishing opening} - G03G 15/502: {relating to the structure of the control menu, e.g. pop-up menus, help screens} - G03G 15/556: {for toner consumption, e.g. pixel counting, toner coverage detection or toner density measurement} - G03G 2215/0675: Generally cylindrical container shape having two ends - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY ## Abstract An image forming apparatus on which a developer container is replaceably mounted and which is improved in usability. An image forming unit of the apparatus forms an image using developer contained in a container which is mounted on a mount section. A replenishment mechanism replenishes the developer in the container to the image forming unit, and a cover is opened to mount the container on the mount section and is closed to protect the container mounted on the mount section. If the cover is opened after it is closed in a state in which the container has been removed from the mount section while a predetermined condition related to a remaining amount of the developer in the container is not satisfied, a remount screen is displayed for prompting a user to remount the removed container. ## Claims ### Claim 1 An image forming apparatus comprising: an image forming unit configured to form an image using developer; a mount section on which a container containing developer is mounted; a replenishment mechanism configured to replenish developer in the container mounted on the mount section to the image forming unit; a cover that is opened to mount the container on the mount section and is closed to protect the container mounted on the mount section; and a display configured to display, in a case where the cover is opened after the cover is closed in a state in which the container has been removed from the mount section while a predetermined condition related to a remaining amount of the developer in the container is not satisfied, a remount screen for prompting a user to remount the removed container. ### Claim 2 (depends on 1) The image forming apparatus according to claim 1, wherein in a case where the container is removed from the mount section while the predetermined condition is not satisfied, the display further displays another remount screen for prompting the user to remount the removed container. ### Claim 3 (depends on 2) The image forming apparatus according to claim 2, wherein in the case where the cover is closed in the state in which the container has been removed from the mount section while the predetermined condition is not satisfied, the display further hides the other remount screen. ### Claim 4 (depends on 2) The image forming apparatus according to claim 2, wherein in the case where the cover is closed in the state in which the container has been removed from the mount section while the predetermined condition is not satisfied, the display displays another screen different from the other remount screen. ### Claim 5 (depends on 1) The image forming apparatus according to claim 1, wherein in the case where the cover is closed in the state in which the container has been removed from the mount section while the predetermined condition is not satisfied, the display further displays an unmounted screen for notifying the user that the container has not been mounted on the mount section. ### Claim 6 (depends on 1) The image forming apparatus according to claim 1, wherein the predetermined condition includes a condition related to the number of times of replenishment in which the replenishment mechanism replenishes the developer from the container to the image forming unit. ### Claim 7 (depends on 1) The image forming apparatus according to claim 1, wherein the replenishment mechanism replenishes the developer to the image forming unit by rotating the container mounted on the mount section, and wherein the predetermined condition includes a condition related to the number of times of rotation of the container. ### Claim 8 An image forming apparatus comprising: an image forming unit configured to form an image using developer; a mount section on which a container containing developer is mounted; a replenishment mechanism configured to replenish the developer in the container mounted on the mount section to the image forming unit; a cover that is opened to mount the container on the mount section and is closed to protect the container mounted on the mount section; and a display configured to: display, in a case where the container is removed from the mount section while the predetermined condition is not satisfied, a first screen for prompting a user to remount the removed container; display a second screen which is different from the first screen in a case where the cover is closed after the first screen is displayed; and display the first screen again in a case where the cover is opened after the second screen is displayed. ### Claim 9 (depends on 8) The image forming apparatus according to claim 8, wherein the predetermined condition includes a condition related to the number of times of replenishment in which the replenishment mechanism replenishes the developer from the container to the image forming unit. ### Claim 10 (depends on 8) The image forming apparatus according to claim 8, wherein the replenishment mechanism replenishes the developer to the image forming unit by rotating the container mounted on the remount section, and wherein the predetermined condition includes a condition related to the number of times of rotation of the container. ### Claim 11 An image forming apparatus comprising: an image forming unit configured to form an image using developer; a mount section on which a container containing developer is mounted; a replenishment mechanism configured to replenish the developer in the container mounted on the mount section to the image forming unit; a cover that is opened to mount the container on the mount unit and is closed to protect the container mounted on the mount section; and a display configured to: display, in a case where the container is removed from the mount section while the predetermined condition is not satisfied, a screen for prompting a user to remount the removed container; hide the screen in a case where the cover is closed after the screen is displayed; and display the screen again in a case where the cover is opened after the screen is hidden. ### Claim 12 (depends on 11) The image forming apparatus according to claim 11, wherein the predetermined condition includes a condition related to the number of times of replenishment in which the replenishment mechanism replenishes the developer from the container to the image forming unit. ### Claim 13 (depends on 11) The image forming apparatus according to claim 11, wherein the replenishment mechanism replenishes the developer to the image forming unit by rotating the container mounted on the mount section, and wherein the predetermined condition includes a condition related to the number of times of rotation of the container.