Am pretty sure that is the problem, HEAT, have seen it on some of the newer LASER units (HP for one) and specifically with card stock. I am a fan of HP for the most part but we did a test with a Laser unit of similar capabilities (made by Brother) and there was no issue, did a clean job on the cardstock. You might want to contact HP service to see if they have any advice or fixes for the problem. Good luck!
Our small business recently had our hp 4250 die on us, so we switched to the 2015. Much of the printing we do is on cardstock, and I think it has some kind of finish on it. We're having problems with the new printer, in that the toner will not bond to the page.
I've tried changing the paper type to cardstock in the print settings, but the toner still flakes off. Is there another way besides changing the paper type to get cardstock to print on a laserjet? I'm thinking it might have something to do with the internal heat of the printer?
I know this might be a bit of a product specific question, but if anyone has any ideas on how to fix this, I would greatly appreciate it. Also, if anyone has a printer (preferrably hp) that can handle this type of job, we might consider switching printers.
Thanks in advance!