Printing Multiple Documents 10.2.8

How can I print multiple documents at a time? I have over 600 images to print & if there's an easier way, which I imagine there is, I would love to know. I'm trying to print CMYK .tiffs
I tried this, but it did not work: See below.

From Mac Help:

Printing by dragging documents

If the Print Center icon is visible, for example in the Dock, you can print documents by dragging them to the icon.

In the Finder, make sure you can see the Print Center icon in the Dock, on the desktop, or in a window.

Select the files you want to print and drag them to the Print Center icon.

To get a printed list of the contents of a folder, drag the folder's icon to the Print Center icon.

Thanks, JP