I bought a total of 4 of these toners. The first worked for a while, but suddenly called me the printer for toner replacement, although this was not yet empty. Did then used the second toner. This began after about 100 pages to print as if the toner would be empty, so only very weak and barely legible. Did then used the first toner again and lo and behold, now he worked. For two days. Then I was asked by the printer again to change the toner. Nothing was more. So again Toner No. 2 pure and tasted. Suddenly could be printed back to normal with this. At least for a few days. Then again, the symptom "I am empty." So again toner 1 pure - this time but was not recognized until. So continue with toner # 3. This then worked a few days until here too the invitation came to toner replacement (in the meantime highest 400 pages were printed). So again toner 1 pure: works. Then no more, so again Toner 2 ... and the story goes on.
Thereby (partly several times per hour), the toner 1 am still - durchzuwechseln 3. Once I have to accept the fourth toner, I will be ordering new toner, but certainly no longer the same! Never ever!
