KM 7235 not working

[samiranbairagya]

I am using Konica Minolta 7235. Till yesterday it was copying fine. Today I found that the machine is not working i.e Touch panel is working but other buttons are not working so copying not possible. The print button is Green & display is "Ready to Scan". Please help.

[SAR]

Check for a stuck button on the op panel. I have had the machine count button get stuck down on a few of these machines and locked up the machine.
The button is on the far left side of the panel and has 123 above it.

[samiranbairagya]

Thanks SAR. I tried the same but problem has not rectified. I have tried with a seperate control panel but the result is the same.

[samiranbairagya]

Surprisingly my machine starts working today. I don't know how the problem has started or closed. Today I switched on the machine & all the buttons of the operational panel is functional. I dare to think for the future, if it will happened again then what I will do to solve the problem. Any idea?