Here are the escape codes needed to switch between bins on an
ImageWriter LQ:
(NOTE: The 'Select Bin X' codes select bins only; they do not cause paper
feeding.)
Function Keystrokes ASCII Code
Select Bin 1 Esc @ 0 27 64 48
Select Bin 2 Esc @ 1 27 64 49
Select Bin 3 Esc @ 2 27 64 50
Feed to Top of Form Control-L 12
Set Top of Form Esc v 27 118