We have a Lexmark C736PS3 color printer. It is telling me that Tray 1 is empty and needs filled with regular paper. Where is tray 1 located and how do I open it to fill it?
The tray 1 is located on the lateral side of the printer. It's the tray that is pulled where you insert paper. Also, some printers have the tray for paper when you open the lateral or back cover.