Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorTAKUYA HAYATO
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Abstract
An image forming apparatus includes a first toner cartridge, a second toner cartridge, a photosensitive drum, a rotary movable to a first exchange position and a second exchange position, a main assembly, a reading portion, a driving portion, and a controller. In a case where the first toner cartridge is mounted to the rotary in a state in which mounting of the second toner cartridge to the rotary is permitted, the controller performs (i) a first reading operation for reading first information, and (ii) an exchange preparation operation for positioning the rotary in the second exchange position after the first reading operation and before a first additional reading operation for reading second information.
Claims12
An image forming apparatus to which a first toner cartridge including a first storing portion and a second toner cartridge are detachably mountable, wherein the image forming apparatus is configured to execute an image forming operation for forming an image on a recording material, the image forming apparatus comprising:
- a photosensitive drum;
- a rotary to which the first toner cartridge and the second toner cartridge are detachably mountable, the rotary including
- (i) a first developing device accommodating toner supplied from the first toner cartridge and including a first developing roller, and
- (ii) a second developing device accommodating toner supplied from the second toner cartridge and including a second developing roller,
- wherein the rotary is rotatable so that each of the first developing roller and the second developing roller opposes the photosensitive drum;
- a main assembly accommodating the rotary and provided with an opening;
- a reading portion;
- a driving portion configured to rotate the rotary so that the rotary takes a first exchange position and a second exchange position, wherein mounting of the first toner cartridge to the first developing device through the opening is permitted when the rotary is in the first exchange position, and mounting of the second toner cartridge to the second developing device through the opening is permitted when the rotary is in the second exchange position;
- and
- a controller configured to control the driving portion,
- wherein in a case where the first toner cartridge is mounted to the rotary, the controller reads first information and second information from the first storing portion through the reading portion before the image forming operation is executed, and
- wherein in a case where the first toner cartridge is mounted to the rotary in a state in which mounting of the second toner cartridge to the rotary is permitted, the controller performs
- (i) a first reading operation for reading the first information, and
- (ii) an exchange preparation operation for positioning the rotary in the second exchange position after the first reading operation and before a first additional reading operation for reading the second information.
An image forming apparatus to which a first toner cartridge including a first storing portion and a second toner cartridge including a second storing portion are detachably mountable, wherein the image forming apparatus is configured to execute an image forming operation for forming an image on a recording material, the image forming apparatus comprising:
- a photosensitive drum;
- a rotary to which the first toner cartridge and the second toner cartridge are detachably mountable, the rotary including
- (i) a first developing device accommodating toner supplied from the first toner cartridge and including a first developing roller, and
- (ii) a second developing device accommodating toner supplied from the second toner cartridge and including a second developing roller,
- wherein the rotary is rotatable so that each of the first developing roller and the second developing roller opposes the photosensitive drum;
- a main assembly accommodating the rotary and provided with an opening;
- a reading portion;
- a driving portion configured to rotate the rotary so that the rotary takes a first exchange position, a second exchange position, a first reading position, and a second reading position, wherein mounting of the first toner cartridge to the first developing device through the opening is permitted when the rotary is in the first exchange position, mounting of the second toner cartridge to the second developing device through the opening is permitted when the rotary is in the second exchange position, reading of information, stored in the first storing portion, by the reading portion is permitted when the rotary is in the first reading position, and reading of information, stored in the second storing portion, by the reading portion is permitted when the rotary is in the second reading position;
- and
- a controller configured to control the driving portion,
- wherein in a case where the first toner cartridge is mounted to the rotary in a state in which mounting of the second toner cartridge to the rotary is permitted, the controller performs a first reading preparation operation for positioning the rotary in the first reading position and an exchange preparation operation for positioning the rotary in the second exchange position after the first reading preparation operation, and performs, after the exchange preparation operation and before the image forming operation, a second reading preparation operation for positioning the rotary in the second reading position and the first reading preparation operation.
Dependencies are inferred from the claim text.