Image forming apparatus and image forming method
AssigneeKonica Minolta Business Technologies, Inc.
InventorsShigeki Takenouchi, Masao Asano, Tomoe Kitani
Life of this patent
Estimating the term…
Abstract
An image forming apparatus comprising a plurality of image forming units, an intermediate transfer member, and an intermediate transfer member cleaning device to remove toner remaining the intermediate transfer member with plural cleaning blades, wherein each color toner used in the developing device of the plurality of image forming units contains 10 number % or less of toner particles whose diameter is (0.7×50% number particles diameter (Dp50)) or less and contains 300 ppm or less of a remaining monomers is disclosed.
Claims20
An image forming apparatus, comprising:
- a plurality of image forming units each having an electrophotographic photoreceptor, a charging device, an exposing device, a developing device, a transferring device, and a cleaning device,
- an intermediate transfer member, and
- an intermediate transfer member cleaning device to remove toner remaining the intermediate transfer member with plural cleaning blades,
- wherein a color toner image is formed in such a way that each color toner image formed on each electrophotographic photoreceptor with toner whose color is changed for each of the plurality of image forming units is sequentially transferred and superimposed on the intermediate transfer member, the color toner image is retransferred at one time onto a recording material and the retransferred color toner image is fixed so as to form a color image, and
- wherein each color toner used in the respective developing device of the plurality of image forming units contains 10 number % or less of toner particles whose diameter is (0.7×50% number particle diameter (Dp50)) or less and contains 300 ppm or less of a remaining monomers.
An image forming method, comprising the steps of:
- forming a color toner image in such a way that each color toner image formed on each electrophotographic photoreceptor with toner whose color is changed for each of the plurality of image forming units is sequentially transferred and superimposed on the intermediate transfer member, wherein each color toner contains 10 number % or less of toner particles whose diameter is (0.7×50% number particle diameter (Dp50)) or less and contains 300 ppm or less of a remaining monomers;
- transferring the color toner image at one time onto a recording material;
- fixing the retransferred color toner image on the recording material so as to form a color image, and
- removing toner remaining the intermediate transfer member with plural cleaning blades of an intermediate transfer member cleaning device.
Dependencies are inferred from the claim text.