Color laser printer using four all-in-one cartridges

A small color laser printer using four all-in-one cartridges has been devel oped. Four fan-shaped cartridges, each of which contains an OPC drum, a dev eloping unit, a charger and a cleaner, are assembled into a rotary carousel . The carousel rotationally changes each color cartridge to produce primary color images that are superimposed onto an intermediate transfer belt to m ake a full-color image that is transferred to a paper all at once. This wor ld-first color all-in-one cartridge eliminates hand-dirtying problems durin g toner and OPC replacement. Furthermore, fewer supply items and a 10,000-p age long cartridge ensure less user intervention for the replacing of consu mables. Its all-front-access structure, which is similar to conventional mo nochrome lasers, affords good user friendliness. This technology is employe d in Panasonic's color laser printer DP-CL16.