Device for pressure fusing images on to paper in electrostatic copies

摘要

This invention relates to a device for pressure fusing dry, powdered toner particles to a copy sheet in an electrostatic copier. The pressure fusing device comprises a rigid member against which fusing pressure can be applied and a plurality of independent, freely movable rollers for applying fusing pressure to a copy sheet. The plurality of rollers are contained in a tray-like housing which is vibrated so that the rollers bounce against a copy sheet and apply a fusing pressure to the copy sheet.