AccurioPress C14000 Pursuing High Productivity, Reliability and Media Compatibility -With a Focus on a Developing System-Kei OKAMURA * AccurioPress C14000 series was designed as Konica Minolta's flagship model to provide new value to customers and to expand business opportunities. This machine is equipped with various new technologies in the electrophotographic(EP)imaging process, and pursued further "improvement of productivity", "improvement of reliability", and "strengthening of media

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... bility" from the conventional machine. In this paper, we will introduce the concept and product outline of the AccurioPress C14000 series, and explain the EP imaging process technology newly adopted in this machine, focusing on the development sub-process technology. In the developing sub-process, the double-stage magnetic brush development method, ensures developability in the high-speed process area, adopts a carrier collecting unit that collects carriers scattered from the developing section onto the photoconductor, and "new auto refining method" that detects and controls the fluid level of the developer to improve stability and high durability.