The toner is prepared by mixing separate clear and black solutions to create a suspension of particles. The optical density of the toner is monitored by a sensor. Since the toner tends to physically settle and chemically deteriorate over time, replenisher, a concentrated form of toner, is automatically added in small amounts to the toner solution to maintain an optimum optical density. Shaking or agitating the toner containers may extend the use of the toner by resuspending toner pigment. Waste Management Dry toner copiers produce a waste stream of dry waste toner that is collected in plastic recovery vessels within the copier.
Electrostatic plotters produce two waste streams.
One stream is the residual toner that is left in the empty plastic toner container. The second waste stream is the unused toner which undergoes both chemical and physical changes as it sits in the plotter. Waste management techniques for both types of toner are discussed below. It is not recyclable. The entire dry toner collection vessel should be placed in a plastic bag and disposed of with normal office refuse.