Summary: This is your basic B/W laser copier. It does great for a small office or home use, however, if you are going to need capabilties beyond that, don't expect this to do it. I had misalignment issues at first, where every sheet was 15-20 degrees off. I removed the paper feed tray(s) and reinserted them, making sure they were in correctly. This solved the issue and my print jobs are spot on now. As for paper curling- it is a laser printer/copier which creates heat.
Excerpt: The Canon D300 Laser Printer that we own has served its purpose really well. I got this at a great bargain price during one of Staples "FREE after rebate" promos in 2009. I essentially only paid tax, which is around $25, for this fabulous office appliance! I print out a lot of coupons and templates for my business and the ink doesn't seem to run out. In the two years that we've had it, we have only changed the cartridge once. ONCE!
Summary: I understand that this is not a high speed super copier. It's good for my home office. I'm a teacher and am often required to make my copies at home. This copier does the trick. It's not super fast, but it's fine if you need to make a few dozen or so copies. I first installed this printer on an old WinXP computer. No problems with installation. That computer died, and I tried to re-install it on a newer Windows 7 PC. No dice.
Summary: Probably the most reliable printer we ever had. Have had it for a couple years. Easy to operate, quiet, instantly noiseless when you put it in sleep mode, quick to start up again. So far has been perfectly reliable ( I am guessing 6000 copies so far). I have easily refilled the toner cartridge DIY several times already -- it's simple and the printer has not complained (as so many others do and make it difficult to use refill kits)
Summary: This is the worst printer that I had ever purchased. It is worthless! It will not line up, everything printed comes out at an angle, that is if the paper makes it through the machine without getting crumpled or jammed. PIECE O CRAP!!