The touchscreen function on my Photsmart 7520 is blank white. If I touch the home button it goes off and the ? button comes on. When I push the ? button it toggles back to home. I cannot select anything on the touchscreen at all as it is all white and unresponsive to touch. I need to switch the network that the printer is on and I cannot due to this issue. Of couse I cannot print, scan or fax. Any help would be appreciated.
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