FUJITSU fi-4120C - Manual (Page 170)

GL-5
IRAS
Initialization of the hardware.
Landscape orientation
A document is transported and read with the long side vertical to
the moving direction.
Letter size
A standard paper size used in the U.S.A. and other countries.
Paper size is 8-1/2 x 11 inches.
Linedrawing mode
Selecting linedrawing mode makes threshold and contrast settings
effective but prevents brightness from being set. The specified
threshold value determines whether black or white pixels are
scanned. Line drawing mode is therefore appropriate for scanning
text and line art images.
Manual Feed mode = Manual Mode
Requires the operator to feed each document manually into the