Sensing and Process Control System for Color MFP
This paper describes a basic idea of process control system of an electrophotographic system, several inventions incorporated in a compact MFP and some issues to be investigated in future. There are some objectives of the process control, however maintaining image density is one of the critical issues and it is focused in this paper.
Several sensors are used to detect characteristics such as environmental conditions, toner amount on a substrate. The process parameters are controlled according to the detected signals so that change of image density can be minimized.
In a compact MFP (Aficio2238), several technologies are incorporated to achieve both stability of image density and the compact size. One is the binary exposure (1 bit) and smaller diameter of the LD beam. This is effective to improve the system robustness. Another is a simple control system. Number of sensors is minimized and some compensations of sensors are carried out without any special adjustments.
In future, less waiting time, minimizing the changes between MFPs and establishment of suitable balance of the three directions are important items.
Document Type: Research Article
Publication date: 2004-01-01
For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.
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