After a few pages I had a nice even print. I'm typing fairly consistently and after about 300 pages the yellow drum light started flashing whenever I was typing. Now at just under 500 pages it's still flickering and the pages come out with an overall light print and very uneven density across the page. Tried a new toner cartridge just in case that might be the problem, no change. That's a lot less than the print life I've had with previous drums.