Saturday, August 6, 2016

Offset plate (part 3)

Offset plate (part 3)
We bought one of the first models of the Xerox machines. This had three parts: a camera, a unit in which the toner and developer were cascaded over the exposed selenium plate and transferred to the copy paper or offset plate, and a fuser. We had to modify our paper plate to permit proper fusing. When Xerox produce the later models of electrostatic copiers without a camera and fuser, with the assistance of Ken Shimazu, we made a paper offset plate which could be used for this purpose. It required formulating the fountain solution with ferricyanide. We built a small building attached to the wall of the stencil coaters at the Alexander-Ashburton corner to install the coater.