Samsung Electronics Co., Ltd.

Jeong-hwan Kim

Myung-ho Kyung

Se-ra Lee

Byoung-chul Bae

Hyun-sun Jung

Jin-cheol Kim

Yoo-seok Yang

Jang-hee Yoon

An image forming apparatus and method are provided. The image forming apparatus includes a communication interface unit that receives printing data, an image forming unit that performs an ordinary printing to form an image on printing paper based on the printing data, a paper supplying unit that provides the printing paper to the image forming unit along with a paper supplying route, a determination unit that determines whether a functional printing may be performed on the paper supplying route in an interval section between sheets of the printing paper, and a controller that controls the image forming unit to perform a functional printing, wherein the ordinary printing is a printing performed on one or more sheets of printing paper, and the functional printing is a printing performed in an interval section between the sheets of printing paper.

Image forming apparatus controlling performance of a functional printing and image forming method thereof

A structure to guide a take-in direction of a print medium to be taken in a carrying part where the print medium is carried, the structure includes: a guide unit which changes a travel direction of the print medium from a feeding direction, in which the print medium is supplied from a medium feeding unit, to the take-in direction of the print medium; and a vibration damper which prevents a bottom part of the print medium from shaking and vibrating when the print medium is free from the guide unit.

Structure to guide print medium and image forming apparatus employing the same

An image forming apparatus includes a plurality of optical scanning units to scan light modulated according to an image signal, a plurality of photoconductive drums to form a plurality of electrostatic latent images by the light scanned from the plurality of optical scanning units, a plurality of developing units to develop the plurality of electrostatic latent images formed on the plurality of photoconductive drums into a plurality of toner images, an intermediate transfer unit to transfer the plurality of toner images developed by the plurality of developing units, a plurality of first transfer rollers installed in the intermediate transfer unit to correspond to the plurality of photoconductive drums, respectively, and to apply transfer voltages that is used to transfer the plurality of toner images onto the intermediate transfer unit, a second transfer roller to transfer the plurality of toner images formed on the intermediate transfer unit onto a paper, and a fixing unit to fix the plurality of toner images transferred onto the paper, wherein the plurality of first transfer rollers includes the first transfer rollers of a first group in which distances between the first transfer rollers of the first group and the plurality of photoconductive drums, respectively, are sequentially reduced downstream along a direction that the intermediate transfer unit travels, and the first transfer roller of a second group is independent from the distances between the first transfer rollers of the first group and the plurality of photoconductive drums.

Image forming apparatus having varying distances between photosensitive drums and transfer rollers

An image forming apparatus and a control method thereof to improve quality of an image in consideration of a change in posture of a print media. The image forming apparatus can include a transferred unit on which a visible image is formed, a transferring unit to form a transfer region through which the visible image is transferred onto a print medium, along with the transferred unit, a bias supplying unit to supply bias to the transferring unit so that a transfer electric field is produced in the transfer region, and a controller to control the bias supplying unit to supply different first to third biases to the transferring unit while at least first to third regions of the print medium pass through the transfer region, respectively.

Image forming apparatus and control method thereof

An image forming apparatus includes a moving unit including a conveyer belt which moves a printing medium, an attraction unit to attract the printing medium to the conveyer belt, a transferring unit to transfer developer onto the printing medium, a power supply which supplies transfer power and attraction power to the transferring unit and the attraction unit, and a controller which controls the power supply to supply only one of the transfer power and the attraction power in accordance with a location of the printing medium.

Image forming apparatus and transfer method thereof

An image forming apparatus includes a moving unit which includes a conveyer belt to move a recording medium, an attraction unit which is disposed at a front head in a moving direction of the recording medium and attracts the recording medium to the conveyer belt, a plurality of transferring units including a photosensitive material and a transfer roller to perform a transferring process of the recording medium according to a plurality of colors, a power supply to supply power to form an electric field in the transferring unit and the attraction unit to perform transfer and attraction of the recording medium, and a controller to control the power supply to supply the power to the plurality of transferring units corresponding to resistance values of second transferring units among the plurality of transferring units, the second transferring units disposed apart from a first transferring unit that is located closest to the attraction unit with respect to the moving direction of the recording medium.

Growing community of inventors

Gunsan-si, South Korea

Jeong-hwan Kim