DOS Program not printing tray 3 or 4

I have a program that i need to keep running in the office what requires some of the print jobs to be printed to tray 3 or to tray 4, i have found the HP PCL commands for the printer option however when i set the codes into the program, it keep printing to tray one, or the bypass tray. I am using a RICOH C410DN and the codes im getting from the HP website.
My current setting is 1B 26 6C 35 48, which should send it to tray 3 but it doesn’t. i was wondering if anyone knew what is going wrong or if there is something else I can do.