Quality leaves much to be desired can not compete with the original toners

Was bought last year in May, with 5,000 sheets specification ...... now since about 2 months before it prints only left and right sides really black in the middle, he is pale. (Bleached)
It would still be in the toner to print approximately 2000 sheets of almost 50%.
Just poor quality. There an original toner was used in the meantime again.

Conclusion:
+ Reasonable price
(That's it)
- Prints only the 50% amount of sheets then finish
- Beschummelung by the manufacturer
- Hence too expensive

There the manufacturer PrinterExpress was written which is to be carried out for the purpose of an exchange quality defect.
Response is expected.
Is here then updated again posted.