I found a possible better solution to cleaning your laser lenses than with q tips. Has anyone used these? We use them for our printer at work and they are lint-free. https://www.amazon.com/dp/B01FVQM2SA/ref=cm_sw_r_cp_apa_C.GaAbD59JZDB
I also learned at my work that it’s also better to clean with Everclear than with rubbing alcohol. Apparently, there is a chemical in rubbing alcohol that degrades the lenses.