Some blurry text frames - some are good.

[awesomedoud]

Hi,

I have been working on a file that gives me headache because some text frames get blurry.

On my workspace everything looks fine.
After exportation to pdf or after printing, some text frames get very blurry, and some are good. See pic

I can't find any difference between those text frames. The character  and paragraph styles are the same.

The file is 300 ppp, font size is 11

What can possibly explain that difference and how can I solve that issue?
Thanks!

[c.pfaffenbichler]

Can you provide the original file? 

It seems one of the type layers has been converted to pixels; did you emplay faux styles? 

[awesomedoud]

Your reply guided me to the solution.

I had checked there was no faux style, but in fact there was sometime a word or a space with a faux bold style.
I didn't imagine Photoshop would convert to pixel the whole frame.

Now with a throughful check that should be ok.

Thanks for your prompt reply and great help. 🙂