No output for Table view of Fields

Labels are attached to a Page display.
No overrides from that.
No exposed filters.
I've attached a screen shot of the Labels view setup.
I've also attached the exported view.

I get a completely blank PDF generated, 3 pages.

No other followup on this?

Ok, I had to figure out what you meant by 'turn on devel module', but I figured it out.
Installed devel, turned it on, generated labels, and checked the URL.

"warning: Invalid argument supplied for foreach() in /home/lussmyer/public_html/pewa/sites/all/modules/mailing_label/mailing_label.module on line 97."

One other question, how does this module choose which fields to put where on the labels?

Ok, tried it. Still outputs a blank PDF. The devel output looks like this: (only a small portion shown)

Array
(
    [0] => Array
        (
            [field_mem_status_value] => 

            [field_mem_fname_value] => 

            [field_mem_mi_value] => 

            [field_mem_lname_value] => 

            [field_mem_addr1_value] => 

            [field_mem_addr2_value] => 

            [field_mem_city_value] => 

            [field_mem_state_value] => 

            [field_mem_zip_value] => 

NOTE!! One thing I just ran into with the .CSV export is that all of my values were getting a newline pre-pended to them. I have NO IDEA where this is coming from, as it's happening on 2 different sites using 2 different themes. (one of which is Garland)
I ended up adding a call to trim() around the value where it's collected, and that worked.
I haven't figured out where to try this on your label code.

I've attempted to do a tiny bit of debugging.
What I found is that in mailing_label.module, fcn mailing_label_create_label,

  foreach ($contactRows as $row => $value) {
    foreach ($value as $k => $v) {
      $val .= "$v\n";
    }
    DPM($val,"create label");
    $pdf->AddPdfLabel($val);
    $val = '';
    }

I added the call to DPM(), and the $val is just a bunch of newlines. No data.

So, since I really needed something to use ASAP, I started fiddling with it.
Since the views_bonus pack export modules worked, I decided to clone one of them and create a pdf export using your label code.
It works!
Since I'm really really new at php and drupal changes, I was unable to make it a separate standalone plugin, so it's still setup to be just another export type in the bonus_views module.
The one other thing I could get to work was to use a copy of the ufpdf code under the views_bonus directory. I just couldn't get the code to FIND it there. So it still refers to the one in the mailing_label module:

$path = drupal_get_path('module', 'mailing_label');
require_once($path . '/mailing_label-ufpdf.php');
/*
$path = drupal_get_path('module', 'views_bonus');
require_once($path . '/export/views_bonus_export-ufpdf.php');
*/

and yes, I did have a renamed copy of the ufpdf class in the views_bonus/export directory as well as a copy of the ufpdf directory.
I've attached a copy of the code changes if you want to look at them.

What I ended up with just won't work as a patch to the Mailing Label plugin.
It is a patch to the Bonus Views Export plugin, and adds PDF support to that one.

I'll upload the full code of the modified Views Bonus Plugin.
You could strip out everything except the PDF variation, and use that as a separate plugin.
I just haven't gotten around to trying that yet.
It's a different style plugin than your Mailing Label. It's a Feed style.
I did fix several bugs in the PDF output code as well.