FUJITSU M3093DG - Manual (Page 156)

(2) When document size detection function is used
SET SUBWINDOW Set subwindow parameters
READ command sequence Start scan and transfer
See Section (3) for Read command sequence.
Unload document from ADF (OBJECT POSITION)
(If setting subwindows is required)
(Not required if ADF is not used)
(Not required if ADF is used, because document is unloaded automatically.)
SCAN (M3093DG only) Set simplex or duplex reading
RELEASE UNIT Release reserved status
Initiator
RESERVE UNIT Move to reserved status
OBJECT POSITION Load document from ADF
Read command
(document size request) Report document size
(Horizontal scanning direction is effective)
SET WINDOW f Set window parameters
f Calculate the number of scan lines covering all
windows set up, in terms of lines effective after
magnification change
Target
SEND Dither pattern download
(Only if required)
RELEASE UNIT Release reserved status
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