![]() Such an image formation device has been proposed in, for example, Japanese Patent Laid-open No. When performing monochrome printing using only black toner, a black development unit is mounted in the developing rotary.Īn image formation device has been proposed which can be put into a color printing mode in which a four-color development unit is mounted, or into a monochrome printing mode in which only a black development unit is mounted, with the user able to switch between the two modes as appropriate. When performing color printing, development units with color toner in a plurality of colors, for example, four colors (yellow or Y, magenta or M, cyan or C, and black or K) is mounted in the developing rotary. This developer unit holder is normally a rotatably controlled developing rotary. The developer device detachably holds a plurality of developing units which house color toners, and has a developer unit holder which causes the appropriate developer unit to be brought into proximity with the image carrier according to the development timing. Image formation devices which form images using electrophotographic technology, provided for example in color printers, have an image carrier in which is formed an electrostatic latent image according to image data a charging unit which charges the outer surface of the image carrier an exposure unit which exposes the outer surface of the charged image carrier according to image data, to form an electrostatic latent image a developer device which supplies toner, as a developing agent, to the electrostatic latent image to develop a toner image and a transfer unit which causes the toner image to be transferred to a media. This invention relates to a color printer, fax machine, photocopier, or other image formation device which forms images using electrophotographic technology, and in particular relates to an image formation device enabling switching between a color printing mode and a monochrome printing mode, and which moreover affords increased flexibility in mounting a developing unit in the monochrome printing mode. ![]()
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