Hi there, I'm Tim and will be assisting you today. I have over 15 Years as an Engineer and have been with eBay, DoD, and many others. I will do my VERY BEST to help you. If you like i can offer remote access and a call. In addition, with any positive rating I will support your question going forward for free.
Not all toner cartridges have this, a few wet napkins will do the same thing, if not better. Give that a shot and let me know!
On the end of the toner cartridges.