IBM 310ED - Manual (Page 55)

Fn + Description
F6 1 Power Management Settings and System
Information screens
F7 2 Standby invocation
F8 3 Hibernation invocation
Right
arrow Scale increase (used with Fn+F2, Fn+F5)
Left
arrow Scale decrease (used with Fn+F2, Fn+F5)
Esc Hotkey Icon Escape
ThinkPad 310, 310D, 310E, 310ED (2600) 31