| http://www.w3.org/ns/prov#value | - sure type wherein the image portion is a light portion.Each of the developing units 4Y, 4M, 4C and 4BK of the rotary type developing device 4 contain negatively charged respective color toners, and the developing units visualize the electrostatic latent images sequentially formed on thephotosensitive drum, by a reverse development.The transfer means in this embodiment is of the same structure as s
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