Printing problem with hp 750

[Matt Mercer]

The attached pdf is correct but I can not get the same result from the hp 750. I have a filled region that has invisible lines, background is transparent and color is black.

What I get is my lower floor wall and siding hatch.

Any suggestion?

[Matt Mercer]

Solve my problem - the fill area was set to "none" not white. The weird thing was that the 750 was the only one that had a problem with it.