We've had our Ricoh c9100 for about 6 months now. Two issues we've noticed is with the 0.5" trail edge issue on heavier stocks and also the grays. Grays come out very uneven and blotchy. Our tech gave us a fix for the trail edge issue but we have to make that change on every one of our heavier cover stocks. The other issues that we have noticed is with running mixed media - the fuser temp change is so slow on the fuser that it's unbearable. We have to run the heavier covers separately. Also, ghosting is still an issue with this machine. This was an issue on the previous 7100 and 751 machines and it wasn't really fixed on this machine.