After a busy day at the office, it's time for IT support for the kids. Last weeks call for help was an urgent - "The printer isn't printing!" Typically, the printer is off-line, or the wrong printer was selected, but this time was different: paper was coming out, but it was blank. I checked the ink cartridges and they were all fine. I thought maybe the ink level indicator wasn't working, so I put in a new black cartridge. No success. The page was completely blank. The work of fiction needed to be printed, so I changed the font color in the document to navy blue, and it printed fine.