Default reset issue (OKI - ES8453)

Hello,

I hope someone can help me. The photocopier does not currently allow me to automatically select a print tray. It keeps asking what print tray to print to and never keeps its settings.

Everytime I go to print... it makes me have to go and select the settings. So i need to press the orange button... and then select tray needed...the select print...etc...

I have updated firmware more than three times and the problem comes back within hours.

How can I make sure it auto prints from a tray, so i do not have to stand by and wait?