Method of driving device for driving developers and image forming apparatus having the device for driving developers
AssigneeSamsung Electronics Co., Ltd.
InventorsByung-sun Ahn, Chung-hwan Kim
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Abstract
A method of driving a device for driving developers and an image forming apparatus having the device for driving developers are provided. In a two-pass image forming apparatus having two photosensitive media, one or two driving sources are driven by forward and backward rotation to drive two developers disposed around each of the two photosensitive media.
Claims19
A two-pass image forming apparatus having a first photosensitive medium and a second photosensitive medium, the apparatus comprising:
- a plurality of developers supplying a developing agent to electrostatic latent images formed on the first photosensitive medium and the second photosensitive medium;
- a driving source driving the plurality of developers and being rotated forward and backward;
- and
- a power transmission unit transmitting a rotating force from the driving source to the plurality of developers, and
- wherein two of the plurality of developers are disposed around each of the first photosensitive medium and the second photosensitive medium.
A two-pass image forming apparatus having a first photosensitive medium and a second photosensitive medium, the apparatus comprising:
- a first developer and a second developer each supplying a developing agent to an electrostatic latent image formed on the first photosensitive medium;
- a third developer and a fourth developer each supplying a developing agent to an electrostatic latent image formed on the second photosensitive medium;
- one driving source driving the developers and being rotated forward and backward;
- and
- a power transmission unit transmitting a rotating force from the driving source to the developers, and
- wherein, when the driving source is rotated forward, the power transmission unit drives the first and third developers and when the driving source is rotated backward, the power transmission unit drives the second and fourth developers.
A method of driving a device for driving developers, the device comprising a first developer and a second developer each supplying a developing agent to an electrostatic latent image formed on a first photosensitive medium;
- a third developer and a fourth developer each supplying a developing agent to an electrostatic latent image formed on a second photosensitive medium;
- one driving source driving the developers and being rotated forward and backward;
- and a power transmission unit transmitting a rotating force from the driving source to the developers, wherein the method comprises:
- forward rotating the driving source;
- driving the first and third developers as the driving source is rotated forward and supplying the developing agent to the first photosensitive medium and the second photosensitive medium to develop a toner image;
- backward rotating the driving source;
- and
- driving the second and fourth developers as the driving source is backward rotated and supplying the developing agent to the first photosensitive medium and the second photosensitive medium to develop a toner image.
Dependencies are inferred from the claim text.