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US 2002/0172532 A1Published application
Image forming device
AssigneeBrother Kogyo Kabushiki Kaisha
InventorSeiichi Senda
Life of this patent
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Abstract
An image forming includes a plurality of photosensitive bodies and a drive unit. Each photosensitive body forms an image having a different color. The drive unit selectively switches between forward drive and reverse drive. The drive unit uses forward drive to selectively drive a particular one of the plurality of photosensitive bodies and uses reverse drive to selectively drive another one of the plurality of photosensitive bodies.
Claims23
An image forming device comprising:
- a plurality of photosensitive bodies, each photosensitive body forming an image having a different color;
- and
- a single drive unit that switches between driving at least one of the photosensitive bodies and at least a different one of the photosensitive bodies.
An image forming device comprising:
- a plurality of developing units, each developing unit being provided for a different one of a plurality of colors;
- a plurality of photosensitive bodies provided in correspondence with the developing units;
- a transfer unit disposed in confrontation with the photosensitive bodies;
- a single drive unit that generates drive force;
- and
- a transmission mechanism that switches transmission of the drive force from the drive unit to photosensitive bodies selected in accordance with drive condition of the drive unit.
3 more elements
An image forming device comprising:
- a plurality of developing units, each developing unit being provided for a different one of a plurality of colors;
- a plurality of photosensitive bodies provided in correspondence with the developing units;
- a transfer unit disposed in confrontation with the photosensitive bodies;
- a single drive unit that switchingly generates forward drive force and reverse drive force;
- and
- a transmission mechanism that transmits drive force from the drive unit to the photosensitive bodies, the transmission mechanism transmitting the same direction of drive force to the photosensitive bodies regardless of whether the drive unit generates forward drive force or reverse drive force.
3 more elements
Dependencies are inferred from the claim text.