Cleaning device for a monochromatic copying machine

Claim 2

A cleaning device for a monochromatic copying machine for processing residue toner removed ty a blade assembly from a photoreceptor, said copying machine being of a type capable of accommodating selectively a plurality of developer boxes containing respective mass of toner of different colors, which device comprises: a toner recovery duct extending between a cleaning box, adapted to accommodate therein residue toner removed from the photoreceptor, and a developer box, for feeding the residue toner accommodated within the cleaning box towards the developer box, one of said developer boxes for use with the mass of black-colored toner having a single chamber defined therein, said chamber being communicated with the toner recovery duct when said developer box is set in position within said copying machine, each of the remaining developer boxes for use with masses of toner respective colors other than black having working and collecting chambers defined therein, separated by a partition wall from each other, said collecting chamber being communicated with the other recovery duct when any one of said remaining developer boxes is set in position within said copying machine. .Iadd.

Claim 3

An image forming device comprising: means for accommodating selectively a plurality of developer units adapted to be operated one at a time therein, a selected one of said developer units being interchangeable with another one of said developer units; and toner recovery means for removing residue toner therefrom and conveying said residue toner towards a selected said developer unit operated therein; each of said developer units comprising a toner reservoir for accommodating a mass of toner for developing images in said image forming device, and a residue toner collecting chamber for communicating with and receiving residue toner from said toner recovery means. .Iaddend. .Iadd.3. The image forming device of claim 2, wherein said mass of toner is black toner and said residue toner collecting chamber comprises said toner reservoir, whereby said residue toner is recycled for use in said image forming device. .Iaddend. .Iadd.4. An image forming device comprising a photoreceptor means, cleaning means for removing residue toner from said photoreceptor means and developer module means including a supply of toner for imparting said toner to said photoreceptor means to form images thereon, said developer module means being interchangeably mounted in said image forming device and comprising toner collecting chamber means detachably interconnected with said cleaning means for receiving residue toner from said cleaning means, rendering said developer module means independently detachable from the rest of said image forming device. .Iaddend.