I am going to take this piece of engineering out into the
front yard , place it on the ground and start jumping on
it wearing heavy combat boots. This xcz@zzzzzEE*****x is
of questionable birth.

This is why machines will never replace man, and the self
instruction given by man positively S U C K S. If you
are able to fix your printer from provided instruction, I
would suspect that somewhere, well hidden in your
background, there lurks an electronic engineering degree.