I've been using an OKI printer, with white ink, works great on 98% of envelopes.
I use a horizontal feeder, once it's set, works like a champ. I've had issues with the belts on the feeder getting slick so the env won't feed straight. I take some blanket wash from the press room and wipe it on the belts to make them tacky and it helps a ton with the feeding.
I use a horizontal feeder, once it's set, works like a champ. I've had issues with the belts on the feeder getting slick so the env won't feed straight. I take some blanket wash from the press room and wipe it on the belts to make them tacky and it helps a ton with the feeding.