For the last several months I have been printing and a streak is appearing on the print out. It appeared to be the yellow toner that was not making it on the paper. So you could see the voice of yellow on a 4 color image.

Today I decided to try and figure out what was going on. I looked online for the best way to take apart the various components of the printer related to the fusion and toner and paper path. I started by opening the cover where the toner cartridges are located and replaced two that have been low for sometime, I had ordered them a while back and replaced them, cyan and yellow. So all cartridges 50% or more.

I removed the right side cover then removed the waster toner bottle, then the imaging unit and began to pull up the separate color assemblies and discovered this piece of plastic inside, what in the world is this?

On the mold it reads at least what I can read:

>ABS<

C.1

and there is nothing else. This piece of plastic was preventing the yellow toner from getting to the roller to print on the paper.

How could this piece break off inside the printer? What type of workmanship is used to construct a printer that would end up with a broken piece of plastic inside of a roller?