Computer Products of America Image Scanner Operator's Guide fi-4990C

GL-5
Paper Jam
A warning informing the user that document is jammed in the transport unit, or that transportation is
disabled because the transport unit is slippery. This warning also appears when a double fed is detected.
Photograph mode (White level follower OFF)
Selecting photograph mode makes brightness and contrast settings effective but prevents the threshold
from being set. With photograph mode, the darkness of image corresponds 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.
Picking start time
The period from the manual insertion of the document until picking starts after the document passes the
hopper empty sensor.
Picking time
The period from the start of picking until the document reaches SF1 sensor. Specify a little longer picking
time for the document with a large friction factor.
Pick speed
A speed when a document is picked. Set the pick speed to SLOW to prevent JAM or MISS PICK.
Portrait
A document is transported and read with the long side parallel to the moving direction.
Pre-picking
A setting in which a document to be read next is placed at the front of the reading unit while the previous
document is read. Setting the pre-picking makes the process speedier.
Readable status
A status when the power is turned on or when reading is activated by the command from the host computer.
Read operation
Refers to the reading operation including Simplex reading and Duplex reading.
16GL.P65 01.2.17, 5:47 PM5