Abstract: A transfer unit used with an image forming apparatus includes an upper housing having a transfer belt of an endless track structure to transfer an image from a photoconductive unit of a main body of the image forming apparatus, and a plurality of rollers to support the transfer belt to rotate therein, and a lower housing removably connected to the upper housing, and having a cleaning unit to clean the transfer belt. The transfer unit is removably mounted to the main body of the image forming apparatus. Accordingly, the transfer unit is facile to be connected to and separated in a vertical direction from the main body of the image forming apparatus. Further, it is convenient to replace the transfer unit since the relative position thereof can be controlled with respect to a contacting object, such as the photoconductive unit.

Abstract: A transfer unit used with an image forming apparatus includes an upper housing having a transfer belt of an endless track structure to transfer an image from a photoconductive unit of a main body of the image forming apparatus, and a plurality of rollers to support the transfer belt to rotate therein, and a lower housing removably connected to the upper housing, and having a cleaning unit to clean the transfer belt. The transfer unit is removably mounted to the main body of the image forming apparatus. Accordingly, the transfer unit is facile to be connected to and separated in a vertical direction from the main body of the image forming apparatus. Further, it is convenient to replace the transfer unit since the relative position thereof can be controlled with respect to a contacting object, such as the photoconductive unit.

Abstract: An electrostatic transfer type liquid electrophotographic printer using a photoreceptor web circulating around a continuous path as a photoreceptor medium is provided. The photoreceptor web is charged to a predetermined potential by a main charger and a plurality of latent electrostatic images is sequentially formed thereon by a plurality of laser scanning units (LSUs). A plurality of developer units are arranged in series in the circulation direction of the photoreceptor web, and sequentially develops the plurality of latent electrostatic images into multi-color toner images with inks containing a liquid carrier and charged toner, thereby forming overlapping multi-color toner images on the photoreceptor web. A concentration control unit controls the concentration of the multi-color toner images to be suitable for electrostatic transfer by adjusting the amount of the liquid carrier applied to the overlapping toner images formed on the photoreceptor web.

Abstract: An electrostatic transfer type liquid electrophotographic printer using a photoreceptor web circulating around a continuous path as a photoreceptor medium is provided. The photoreceptor web is charged to a predetermined potential by a main charger and a plurality of latent electrostatic images is sequentially formed thereon by a plurality of laser scanning units (LSUs). A plurality of developer units are arranged in series in the circulation direction of the photoreceptor web, and sequentially develops the plurality of latent electrostatic images into multi-color toner images with inks containing a liquid carrier and charged toner, thereby forming overlapping multi-color toner images on the photoreceptor web. A concentration control unit controls the concentration of the multi-color toner images to be suitable for electrostatic transfer by adjusting the amount of the liquid carrier applied to the overlapping toner images formed on the photoreceptor web.

Abstract: A printer ribbon distinguishing method and apparatus therefor, distinguishes a color ribbon, a black ribbon with a clear patch and a black ribbon without a clear patch in a sublimating type color printer.