How do I stamp out the horizontal and vertical lines from Yahoo Finance print outrput?

How do I stamp out the horizontal and vertical lines from Yahoo Finance print outrput?

You print cartridges have a blockage. Run a few print head cleanings. Your booklet will tell you how to do this.
You could copy and join the text you want to print out into Microsoft Word or something. Or see if the page you're looking at have a "Printer Friendly" version.