BILDERZEUGUNGSEINRICHTUNG UND TONERPATRONE HIERFUER

摘要

An image forming apparatus having a developing unit for developing a latent image electrostatically formed on a photoconductive element or similar image carrier by a developer, or toner, to produce a toner image, and a cartridge removably mounted on the apparatus for supplying a toner thereto. An operator is directed through the steps of toner re-supply from the removal of the used toner cartridge to the insertion of a new toner cartridge while watching instructions which sequentially appear on a display. The present invention allows for the display of instructions which will lead the operator applyin toner through a step-by-step process to ensure that the toner is added correctly, quickly and efficiently.