(Phys.org)—Scientists are one step closer to being able to print tissue replacements for diseased or damaged body parts using inkjet printers, thanks to the development of a specialised ink formulatio. Does it matter if you print coupons in color or in black ink. Target or Publix, I never have this issue – the printed coupon always scans. It’s just at Walmart that this happens. What’s your opinio. HP has a…