copy function fails, message mismatch media

[Muginn]

Paper mismatch : paper detected does not match paper size or type selected.  On settings I put US letter, {or 8.5" x 11"} as well as on the computer. Plain paper is the setting for media type. The scan function works fine, so the scanner works and produces copy on the computer. This problem developed just recently even though my use of the printer has been normal-- printing documents, scanning, printing photos using photo paper. without a problem.  The printer is wireless connected.  

[Ratchet_31]

Hi , 

Try Restore settings to defaults. 

Go to Tools on printer

Press Down Arrow till you find Restore Factory Defaults.

Press OK & Restart your printer . 

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[Muginn]

thanks for the suggestion. i had tried that without success . the 8600 was over four years old, printed everything very slowly so i popped for an hp 8720, which was easy to set up in thirty minutes and works great. again thanks!