
Is it a part of the "wiper" which removes extra toner? The flexible plastic feels flimsy, like it wouldn't stick very easily to anything. I looked at each toner cartridge looking for a piece of flexible plastic which might have fallen out of one of them, but which is still present in the others, but I did not notice anything. I hope that the printer itself wasn't damaged. I looked at each toner cartridge, and I cannot notice a scratch or something else which could explain that streak. I cleaned all 4 of the cartridges' rollers with microfiber, rotating and cleaning them until they did not display any more toner.īut in the end, there is still a large streak on every page: It was covered in toner (the photo above is after it was thoroughly cleaned). I noticed a piece of clear flexible plastic had fallen underneath the black cartridge (but I don't know whether it was originally from the black cartridge): I powered off the printer, unplugged it, and looked at the toner cartridges, which were at 100%, having been replaced a month ago. Not smoke, but just the smell of overworked electronics. The printer was working so hard that I started smelling an odor.

I would have noticed it sooner had I been in the room when it was churning, but I simply printed the document from my phone over WiFi, expecting to read it later.

It was stuck for almost an hour in the "Correcting, please wait" stage, making mechanical noises. I printed a 2-page color PDF file today, and the MF733Cdw never printed it, instead displaying "Correcting, please wait" continously, and spending a lot of toner, but never printing it.
