04-27-2014, 04:38 PM
Robert M wrote: With a laser printer, one of the biggest issues was the heat of the fusing process inadvertently sealing the envelopes.
'Haven't had that happen for the last decade or so. I think that modern lasers heat up less than old ones did to fuse the toner to the page.
...I suppose maybe if you live in a swamp or tropical jungle that could still be an issue due to humidity.