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US 2024/0416665 A1Published application
Drum conveyance mechanism and image forming apparatus
AssigneeRicoh Company, Ltd.
InventorShu Umehara
Life of this patent
Estimating the term…
Abstract
A drum conveyance mechanism includes a drum, a drive motor to rotate the drum to convey a sheet medium along an outer circumferential surface of the drum, a first power supply to supply an operating voltage to the drive motor, a driven roller to rotate as the drum rotates, a rotation brake to prevent rotation of the driven roller, a second power supply to supply an operating voltage to the rotation brake, and a power supply switch to switch a state of supply of the operating voltage from the first power supply and the second power supply.
Claims7
A drum conveyance mechanism comprising:
- a drum;
- a drive motor to rotate the drum to convey a sheet medium along an outer circumferential surface of the drum;
- a first power supply to supply an operating voltage to the drive motor;
- a driven roller to rotate as the drum rotates;
- a rotation brake to prevent rotation of the driven roller;
- a second power supply to supply an operating voltage to the rotation brake;
- and
- a power supply switch to switch a state of supply of the operating voltage from the first power supply and the second power supply.
5 more elements
An image forming apparatus comprising:
- an image forming device to form an image on a sheet medium;
- and
- a conveyor to convey the sheet medium to the image forming device,
- the conveyor including a drum conveyance mechanism including
- a drum;
- a drive motor to rotate the drum to convey a sheet medium along an outer circumferential surface of the drum;
- a first power supply to supply an operating voltage to the drive motor,
- a driven roller to rotate as the drum rotates,
- a rotation brake to prevent rotation of the driven roller,
- a second power supply to supply an operating voltage to the rotation brake, and
- a power supply switch to switch a state of supply of the operating voltage from the first power supply and the second power supply.
8 more elements
Dependencies are inferred from the claim text.