No matter what I try, my text and images are printing blurry/pixelated. I toggled on anti-alias and no change. Made sure the dpi is 300. The text is just a preset font.The image is a purchased png. I have taken all the advice I've been given and still no change. The image and text look good in AI and the preview on my Mac. They look good when I put them in photoshop. Please help.
Illustrator does not have a document dpi setting as it always sends at maximum quality. There is a raster effects setting, but not the same as in photoshop where you set the amount of pixels for the entire document. If the printer you are sending to does not have postscript, then Jacob's advice will solve your issue. Print the pdf from acrobat not illustrator to get around the printer not having postscript.
If you placed an image of type at 300 dpi and scaled it larger
Well then your image does not have enough pixels
If you need more help, please provide us information about your file construction and printer, as the scenarios are vast of what this could be, but that will narrow down for us what your issue is.