| 摘要 |
An image forming apparatus, including a body with an aperture, a processing unit movable between an inside position and an outside position, and a transfer unit, is provided. The processing unit includes first and second drum cleaners to remove waste toner from first and second photosensitive drums respectively; and a waste toner conveyer including a conveyer tube longitudinally extending in a movable direction of the processing unit, a port, a conveyer screw located inside the conveyer tube, and a shutter movable between an opening position and a closed position to open and close the port. The transfer unit includes a belt unit with a belt arranged to contact the first photosensitive drum and the second photosensitive drum, and a belt cleaner including a container with an opening which communicates with the port of the conveyer tube when the processing unit is in the inside position. |
| 主权项 |
1. An image forming apparatus, comprising:
a body including a first wall and a second wall opposite to the first wall, the first wall having an aperture; a processing unit movable between an inside position, in which the processing unit is inside the body, and an outside position, in which the processing unit is outside the body, through the aperture in the body, the processing unit comprising:
a first drum cleaner configured to remove waste toner from a first photosensitive drum, the first drum cleaner including a first cleaning blade arranged to contact the first photosensitive drum, and a first screw longitudinally extending in an axial direction of the first photosensitive drum;a second drum cleaner configured to remove waste toner from a second photosensitive drum, the second drum cleaner including a second cleaning blade arranged to contact the second photosensitive drum, and a second screw longitudinally extending in an axial direction of the second photosensitive drum; anda waste toner conveyer configured to convey the waste toner removed by the first drum cleaner and the second drum cleaner, the waste toner conveyer including a conveyer tube longitudinally extending in a movable direction in which the processing unit is movable from the outside position to the inside position, the waste toner conveyer having a port, a conveyer screw located inside the conveyer tube, and a shutter movable between an opening position, in which the port is open, and a closed position, in which the port is closed, the port of the conveyer tube being arranged closer to the first wall of the body than to the second wall of the body when the processing unit is in the inside position; and a transfer unit comprising:
a belt unit including a belt arranged to contact the first photosensitive drum and the second photosensitive drum; anda belt cleaner including a container, the container having an opening which communicates with the port of the conveyer tube when the processing unit is in the inside position, wherein the processing unit is movable from the inside position to the outside position independently of the container of the belt cleaner such that the container remains inside the body when the processing unit is at the outside position and such that an entirety of the container is disposed lower than the processing unit when the processing unit is at the inside position. |
