Brand new toner... and it prints worse than the empty one!

We bought 3 toners for the SCX-3200. One works normally in terms of printing, but it makes excessively loud noise during use. The other two have a serious problem: they only print on the left side of the page and the text comes out very faint. Unfortunately, because we bought them about 3-4 months ago and did not use them immediately, we can no longer return them.

The ink is problematic, it doesn't print correctly in the middle, it leaves a line from this specific store, I bought for the first time and it will be the last!!!

Very often the printer does not recognize it and asks me to reposition it again. After 6-7 attempts it accepts it. Frankly unacceptable.

with 30% remaining ink as stated by the printer, the prints started to deteriorate and fade excessively. This is evidence that despite claiming 30%, the ink has already run out. I don't think they are refilling it correctly in this specific case or they are not filling it up to 100%....

913 prints with an average coverage of 5.2%, 40% remaining and 564 estimated remaining prints according to the printer, and the quality is as shown. It only prints HALF a page. Even if I shook the toner, the quality remains the same... Now, for about €9, I don't know if you can call it value for money... With another compatible one, at 1309 prints with an average coverage of 4.92%, 13% remaining and 193 estimated remaining, it just started to appear more faded.

It works fine. Nice prints. We'll see about durability.
Update: The toner ran out even though the printer calculates that it is at 50%