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Volume: 15 | Article ID: art00078_1
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Laser Toner Fusion: An Imaging Process for Graphic Arts Applications
  DOI :  10.2352/ISSN.2169-4451.1999.15.1.art00078_1  Published OnlineJanuary 1999
Abstract

Laser-toner-fusion (LTF) is a dry, high-quality electrothermographic imaging process for producing images from electronic input. The process steps involve using a magnetic brush to apply a uniform toner layer to a substrate, imagewise exposing the layer to a high power IR laser, which tacks the toner to the substrate, removing the unexposed toner using a magnetic brush toner removal device and finally, fixing the image using conventional fusing. The removed unexposed toner can be recycled thereby eliminating waste. The exposed toner particles are partially buried in a thermoplastic layer and are therefore robust to abrasion. The process is insensitive to visible radiation and can be carried out in ordinary roomlights. The energy required for imaging is between 150 and 300 mJ/cm2. The application most thoroughly investigated is imagesetting where color separations with 2540 pixels per inch resolution, and with transmission density of 4.0, have been made to produce high-quality 4-color images.

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William Mey, Dennis R. Kamp, "Laser Toner Fusion: An Imaging Process for Graphic Arts Applicationsin Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP15),  1999,  pp 297 - 301,  https://doi.org/10.2352/ISSN.2169-4451.1999.15.1.art00078_1

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