Although liquid development using submicrometer-sized toner particles is suitable for achieving high image quality including half-tone images, conventional liquid developing units are limited in speed and cause chemical pollution. Furthermore, the need for a built-in toner density control unit makes the printer equipment complex. To solve these problems, a liquid developing unit using highly concentrated liquid toner that can develop the latent image in a small developing area without any toner density control is available. This unit contains a developing roller that also works as a filming roller and squeezing roller. Optimal developing conditions that yield a high-quality image with a noise-free background are described.
Shogo Matsumoto, Akira Mori, Junichi Matsuno, Akira Sasaki, Tetsuro Akasaki, Keiji Kamio, "An Experimental Study on Developing Characteristics Using Highly Concentrated Liquid Toner" in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP14), 1998, pp 239 - 242, https://doi.org/10.2352/ISSN.2169-4451.1998.14.1.art00059_1