Abstract: Disclosed is a useful method of removing a charge from an electrophotographic photoreceptor provided with insulation layers on its surface by radiating light containing a minimum of 6,000 angstroms of peak wave length onto said photoreceptor simultaneously with a corona discharge. To realize this, a filter is applied so that light containing a minimum of 6,000 angstroms of peak wave length can be generated.

Abstract: A multicolor electrophotography apparatus and method wherein a photoconductive copy sheet surface containing uniform electric charge is exposed to an original through light filter which enables one color to be recorded, is developed with colored toner to produce a copy of that color, and the sequence is repeated for each of the other colors, utilizing superimposing toner images on the same copy sheet. In a preferred embodiment a sheet carriage is adapted to hold the copy sheet at its upper edge portion and carry it only in a certain direction for example in a vertical direction whereas a developer bed on which a plurality of developer reservoirs, each containing different colored developer toners are mounted, is adapted to travel in the other direction for example in the horizontal direction.