Abstract: A transfer device for an image forming apparatus includes a frame, a driving roller, a backup roller, and a transfer belt to travel between the driving roller and the backup roller. The transfer device further include meandering prevention members to rotate independently of the backup roller, the meandering prevention members including a first meandering prevention member located between a first end portion of the backup roller and the frame, and a second meandering prevention member located between a second end portion of the backup roller and the frame. When the transfer belt meanders and contacts one of the first and second meandering prevention members, the one of the first and second meandering prevention members is to be rotatably driven to increase a tension of the transfer belt.

Abstract: A transfer device for an image forming apparatus includes a frame, a driving roller, a backup roller, and a transfer belt to travel between the driving roller and the backup roller. The transfer device further include meandering prevention members to rotate independently of the backup roller, the meandering prevention members including a first meandering prevention member located between a first end portion of the backup roller and the frame, and a second meandering prevention member located between a second end portion of the backup roller and the frame. When the transfer belt meanders and contacts one of the first and second meandering prevention members, the one of the first and second meandering prevention members is to be rotatably driven to increase a tension of the transfer belt.

Abstract: A transfer device having a structure for preventing the meandering of a transfer belt, an image forming apparatus including a structure for preventing the meandering of a transfer belt, and a method for preventing meandering of the transfer belt. The image forming apparatus including a main body. The main body including an image forming member and a transfer device which transfers an image formed through the image forming member to a printing medium. The transfer device includes a frame, a driving roller, a backup roller being rotatably supported to the frame, a transfer belt to travel between the driving roller and the backup roller; and meandering prevention members located at both end portions of the backup roller to independently rotate. The meandering prevention members being driven by contact with the transfer belt to control tension of the transfer belt.

Abstract: An image forming apparatus includes at least one developing device which may include a photoconductor and a developing roller, a light source configured to generate light to form an electrostatic latent image, a light scanner including a light window through which the light generated by the light source is transmitted, a shutter configured to open or close the light window, and a pressure member moved in response to the opening or closing operation of the shutter or the contact or separation between the photoconductor and the developing roller. The image forming apparatus can easily control the shutter without additional structures, resulting in implementation of a simplified structure.

Abstract: An image forming apparatus includes at least one developing device which may include a photoconductor and a developing roller, a light source configured to generate light to form an electrostatic latent image, a light scanner including a light window through which the light generated by the light source is transmitted, a shutter configured to open or close the light window, and a pressure member moved in response to the opening or closing operation of the shutter or the contact or separation between the photoconductor and the developing roller. The image forming apparatus can easily control the shutter without additional structures, resulting in implementation of a simplified structure.

Abstract: Disclosed herein are an image forming apparatus and a control method thereof. In the image forming apparatus, an intermediate transfer member is provided with a position identification mark, to enable sensing of a position of the intermediate transfer member after a cleaning unit is completely spaced apart from the intermediate transfer member. An image formation/transfer position can be controlled in response to a sensing signal of the position identification mark, so that respective colors of developer images may be formed and transferred to the same position on the intermediate transfer member in a state in which contact between the cleaning unit and the intermediate transfer member is released. This minimizes and/or prevents color discrepancy between the respective colors of developer images.

Abstract: A front-side image and a back-side image of a document are read using a plurality of image sensors mounted on a transfer path and are displayed on a display unit implemented by a touch screen, and a subsequent process of an image to be processed according to a selection of a user is performed. Accordingly, a user convenience in view of an operation to process a read image is improved.

Abstract: A mobile image forming apparatus is provided that comprises a casing, a support frame to surround a printing medium roll from which a printing medium is supplied and to guide the printing medium, an image forming unit to form an image on the printing medium guided by the support frame and a printing medium receiving portion disposed between the casing and the support frame to receive therein the printing medium on which the image is formed by the image forming unit. The mobile image forming apparatus may further comprise a roll support core disposed in the support frame to rotatably support the printing medium roll.

Abstract: An image forming apparatus having a first image forming unit and a second image forming including a printing medium supplier which supplies a printing medium, a selection guide which selectively guides the printing medium from the printing medium supplier to one of a first supplying path of the first image forming unit and a second supplying path of the second image forming unit, and a first feed roller which is disposed between the selection guide and the printing medium supplier, and transfers the printing medium from the printing medium supplier to the selection guide.

Abstract: A mobile image forming apparatus forming an image on a media including a main body, a folding part, which is provided to be folded and unfolded via a predetermined rotating shaft, rotating between a closed configuration coupled to the main body and an opened configuration opened from the main body and having a folding transferring path for transferring the media, and an image forming part provided in at least one of the main body and the folding part.

Abstract: Disclosed herein are an image forming apparatus and a control method thereof. In the image forming apparatus, an intermediate transfer member is provided with a position identification mark, to enable sensing of a position of the intermediate transfer member after a cleaning unit is completely spaced apart from the intermediate transfer member. An image formation/transfer position can be controlled in response to a sensing signal of the position identification mark, so that respective colors of developer images may be formed and transferred to the same position on the intermediate transfer member in a state in which contact between the cleaning unit and the intermediate transfer member is released. This minimizes and/or prevents color discrepancy between the respective colors of developer images.

Abstract: A front-side image and a back-side image of a document are read using a plurality of image sensors mounted on a transfer path and are displayed on a display unit implemented by a touch screen, and a subsequent process of an image to be processed according to a selection of a user is performed. Accordingly, a user convenience in view of an operation to process a read image is improved.

Abstract: A mobile image forming apparatus is provided that comprises a casing, a support frame to surround a printing medium roll from which a printing medium is supplied and to guide the printing medium, an image forming unit to form an image on the printing medium guided by the support frame and a printing medium receiving portion disposed between the casing and the support frame to receive therein the printing medium on which the image is formed by the image forming unit. The mobile image forming apparatus may further comprise a roll support core disposed in the support frame to rotatably support the printing medium roll.

Abstract: An image forming apparatus having a first image forming unit and a second image forming including a printing medium supplier which supplies a printing medium, a selection guide which selectively guides the printing medium from the printing medium supplier to one of a first supplying path of the first image forming unit and a second supplying path of the second image forming unit, and a first feed roller which is disposed between the selection guide and the printing medium supplier, and transfers the printing medium from the printing medium supplier to the selection guide.

Abstract: A mobile image forming apparatus forming an image on a media including a main body, a folding part, which is provided to be folded and unfolded via a predetermined rotating shaft, rotating between a closed configuration coupled to the main body and an opened configuration opened from the main body and having a folding transferring path for transferring the media, and an image forming part provided in at least one of the main body and the folding part.