Liquid Cooling Technology in a High-speed Electrophotographic Process
Abstract:The authors developed liquid cooling technology for electrophotographic imaging process and put it into practical use for the first time. The thermal design for the liquid cooling system is also established.
The technology, including a liquid cooling jacket for contacting between a development unit and its contact surface, prevents temperature rise in development units for high-speed electrohotographic copiers/printers. The liquid cooling jacket is composed of aluminum plates and a copper pipe, in which liquid circulates without liquid leaks. Liquid temperature is almost the same as room one. Accordingly, it receives the heat from the development unit with low temperature rise and a small cooling space. Besides, a thermal conductive sheet and a PET film on contact surface between the development unit and the liquid cooling jacket, enable the development unit to be attached and removed without lowering high efficiency in liquid cooling. Optimization and selection for a pump, radiators and fans are carried out for the liquid cooling system thermal design by examining thermal resistance between portions with different temperature rise and heat generations in the development unit.
As a result, temperature rise in the development unit in prototype, of 75 pages per minute print speed and 1,320 millimeters wide, is controlled below toner caking temperature.
Document Type: Research Article
Publication date: 2011-01-01
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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