Hi Datamanager,
Thank you for using the Support Forum. Please take a look at the solution for auto tray selection. Also make sure that you have auto select chosen in the software you are printing from if the option is available. For example these are the instructions for Microsoft Word. If this does not help please consider contacting your support centre for further assistance.
We do hugh print jobs atleast twice a month and it is ver tedious to have to get up and refill the paper tray every 5 minutes. Is there anyway to set the machine to automatically switch trays when printing in large volumes. Im sorry if this sound like an elementary question. I have just begun to use the machine and have not had time to figure it out