New Canon Pixma Pro-100 printing with streaks on backgrounds

[jen]

Hello.  I just purchased the printer last week.  I'm operating on a MacBook Air.  I typically use LightRoom and Photoshop.  

I'm a professional photographer and recently look a class at ICP and learned how to print there.  I was shocked at how beautiful the prints were.  This was using an Epson in a classroom.

I did my research and talked to other photographers and decided the Pro-100 would be perfect for me, and so far, it is.

I've had trouble with magenta casts when using LightRoom.  Switched to PhotoShop and got better results.  But some prints, especially those with a simple, plain background, faint lines appear across the page.

Here's an example.  The lines appear top to bottom every 1/4 inch or so:

[jrhoffman75]

Print this test image and report back whether you get lines or not.

http://www.outbackphoto.com/printinginsights/pi049/essay.html

Can you post a screen shot of your printer settings in your printing software?