Hiya Sonya, at the moment I have a box of 'true pix' classic. It doesn't matter what paper is presented, I still get a paperjam (which isn't).
I have tried realy thin copier paper, good quality paper, 200gsm photo-paper, in A4 and A3 sizes. It will print a nozzle check on all of them, using the Epson maintenance programme, but try and print from any other programme (even notepad) and I get a paperjam.
I call it a 'phantom' jam because the paper is fed and presented quite correctly, then the top light starts blinking, and the Epson programme tells me there is a paperjam 'switch off machine, remove paperjam by hand and re-start'. when you switch the machine off, it feeds the suposedly jammed paper quite nicely.
I have noticed that if you press the flashing top button, it will eject said paper, then go from flashing to steady (whether that is important or not, I have no idea!), then when you turn the machine off, it will pick up another piece from the mag. and eject that.
All very frustrating, if I could afford to replace it, it would learn to fly

. wouldn't help the printer, but may help me
