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fi-4220C Image Scanner Operator’s Guide GL-5
Outline extraction
The boundary between black and white areas is traced and the outline extracted for
closed areas.
PAPER JAM
A warning informing the user that document is jammed in the transport unit, or that trans-
portation is disabled because the transport unit is slippery. This warning also appears
when a double feed is detected.
Photograph mode (White level follower OFF)
Selecting photograph mode makes brightness and contrast settings effective but pre-
vents the threshold from being set. With photograph mode, the darkness of image corre-
sponds to the black-pixel density, making it suitable in scanning images such as
photographs having gradations.
Photo mode = photograph mode
A photograph is read properly in this mode.
Portrait orientation
A document is transported and read with the long side parallel to the moving direction.
Read operation
Refers to the reading operation including Simplex reading and Duplex reading.
RS-232C interface
A type of serial interface. See Serial interface.
SCSI ID
Used to specify a particular SCSI device when the initiator selects a target or the target
reconnects to the initiator.
Simplex reading mode
Only the front side of the document is read in this mode. Place the documents face up at
the center of the ADF paper chute.