Have you tried to calibrate the touch screen ?
HP LaserJet M3027/M3035 MFP, M4345MFP, CM4730MFP, M5035MFP, CM6030/CM6040MFP, M9040/M9050MFP, HP 9250C Digital Sender - Control panel touchscreen does not respond
If the touch screen on the control panel is unresponsive, follow these steps to calibrate it:
- Turn the product Off.
- Press and hold the number key (#) and the Clear key ©) while turning the product on. A dot will display in the upper left corner of the screen.
- Release the # and C keys.
- Touch the dot with a blunt object, such as a pencil eraser, and another dot will display in the lower right corner.
- Touch that dot and wait for the product to continue the startup sequence.
- If after performing a control panel calibration the issue persists, replace the control panel.
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