This is my sensor cleaned (using Eclipse E2 and Swab Type 2):

I play with levels in photoshop and I see some strange lines (the white lines):

I take another shot on another white paper. The white lines disappear. Strange ? Look here:

Now what you think, something exist on first paper or sensor really scratched?
I appreciate any opinion. Thanks!

I play with levels in photoshop and I see some strange lines (the white lines):

I take another shot on another white paper. The white lines disappear. Strange ? Look here:

Now what you think, something exist on first paper or sensor really scratched?
I appreciate any opinion. Thanks!