Here's an interesting thread I came across in another forum.
I have been concerned about the toner from Xerox copiers for years. A
friend that worked in an office told me that when they repainted the
office they removed a thermostat from the wall. The difference in
color from the wall that had been exposed to flying pigment and that
behind the thermostat was jaw dropping. I suspect that the toner is
non-organic and, like many of the compounds in cigarette tobacco,
might remain, if inhaled, in the body for some time.
This is speculation on my part. Maybe some here would have more
informed knowledge.
It's funny that you bring this up.
Before I went back to school to study law, I was a Medical
Anthropologist. I spent a year in Cleveland working with a group of
doctor's doing pulmonary research. We idenified a new sort of asthma
we called "Xerox Worker's Asthma". Basically the toner from photo-
copy machines (practically identical to laser printers) becomes
aerosolized and inhaled by users. There are over 40 different
chemicals in toner that could be doing very nasty things to you. We
noted that those who use photocopiers for a living tend to get a form
of asthma.


This was an interesting discussion. We do know that strong chemical fumes can be a trigger for asthma, and that there is such a thing as occupational asthma that is caused by exposure to toxic substances. So, this notion of toner-induced asthma makes sense.
I know that when I've breathed in such fumes even briefly, it has caused me to wheeze!
I developed pnuemacitis and asthma from the constant breathing of toner fumes from the printer at my desk and the network printer which was in the same area. I had to leave my job once the illness became full blown, but the trouble is that I was unable to get worker's comp; or any other tyoe of support from my organization. This is mainly due to the fact that a lot of doctors still do not understand this problem. I am now working as a substitute teacher, but no matter where I go I now have to wear a mask when I am in the printer room. I also have the same happening in the presence of strong chemical fumes. I do not have medical insurance anymore, since I had to leave my permanent job, and I do need to see a doctor even if it is a clinical trial.
How do you know if your printer ink has toner in it?