Samsung CLP-550N Laser Printer "remove invalid url" Questions

...invalid imaging unit I had this problem with my CLP-550, which is now 5 years old and is still on the starter toner cartridges. I found a solution at the following URL, where I at least found a ...

...remove the cartridges from the unit and to do that I request you to make sure you performed the steps given in the below weblink: ...