combination of the aforementioned charging means which are desirable in many ways in particular in terms of elimination of ozone generation and the aforementioned developing means which is desirable in terms of image quality and also in terms of size reduction cost reduction ease of maintenance colorization etc the image forming apparatus in this embodiment is a typical cleanerless image forming apparatus fig5 is the schematic section of the apparatus the image forming apparatus in this embodiment is substantially the same as the image forming apparatus laser beam printer in embodiment 1 except for the elimination of the dedicated cleaning apparatus 6 cleaner which cleans the peripheral surface of the photosensitive member 1 after a toner image is transferred onto a transfer sheet p thus in the case of the image forming apparatus in this embodiment such toner particles that are charged by the transfer charge roller 4 to the polarity opposite to the normal polarity and mix into that is are recovered by the magnetic particle layer 23 of the electrically conductive magnetic brush are triboelectrically charged by the magnetic particles in the magnetic particle layer 23 back to the normal polarity being thereby expelled from the magnetic particle layer.