You can copy, and that's a good sign. Try unplugging from the wall and reseating the Dell Series 7 ink cartridge(s). It seems that since the screen isue is oin the printer, it is something on the printer.
If you can copy and the issue was on the computer, I would recommend freinstalling the printer using a special procedure.
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#MicrosoftMVP - Windows Expert-Consumer April 1, 2012 to March 31, 2015