Toshiba e-Studio 2500c Operator's Manual page 378

10 WHEN THIS MESSAGE APPEARS
6
Press the [USER] button on the touch panel to display the USER
menu, and then press the [DRAWER] button.
7
Press the drawer button corresponding to the one mentioned in the
message on the touch panel.
8
Press the paper size button corresponding to the one placed in the
drawer.
P.52 "Preparation 2- Setting Copy Paper"
376 "Check paper size setting on control panel for drawer N"