I have recently bought a small home/office laser printer. When I want to print directly on the envelopes, the warmth inside the printer causes the envelopes to be sealed while passing through it. Since I have always been using inkjets before, I have never thought of this problem, neither have heard anyone complaining about it. Is it only my printer that does this or other laser printers do have this problem as well? Is there any way around this? Appreciate any comments.