Re: photocopier toner- what is it?

George Mackie (mackie@uvic.ca)
Tue, 11 Nov 1997 16:23:27 -0800 (PST)

Can anyone explain how photocopier works please. All I know is that the
toner is negatively charged and attracts to the + charges created on the
paper but how do they make the latent image on the paper + charged in the
first place, and what is the chemical composition of the toner.
If you stop the copier before the paper has gone through the hot rollers
at the end, the image is still soft and smears easily, so heat is
necessary to fix it in place on the paper.