Chapter 2 Loading Documents
45
Loading Documents with Tabs or Non-Rectangu-
lar Documents
To scan a document with a tab attached at its bottom or a non-
rectangular document, place it on the scanner so that its tab or
clipped section will be fed last through the ADF.
Good Example:
Bad Example:
Multifeed Detection Conditions
A multifeed refers to an error that occurs when more than one
sheet of paper is fed into the ADF at the same time.
There are three modes to detect multifeeds: document
overlapping, document length, and both document overlap-
ping and length. The following conditions must be satisfied in
each of these detection modes.
Detection By Document Overlapping
•
Load sheets of the same thickness on the ADF at a time.
•
Document paper weight: of 31 g/m
2
to 209 g/m
2
(
8
.3 lb to
56.1 lb) (0.04 mm to 0.26 mm or 0.002 in. to 0.010 in.)
•
Punched holes are not allowed within 35 mm (1.3
8
in.) of the
vertical center line of document.
•
Do not glue separate paper within 35 mm (1.3
8
in.) of the
vertical center line of document.
Detection By Document Length
•
Load sheets of the same length on the ADF at a time.
•
Document length deviation: 1% or less
•
Punched holes are not allowed within 35 mm (1.3
8
in.) of the
vertical center line of document.
Detection By Document Overlapping and Length
•
Load sheets of the same thickness and same length on the
ADF at a time.
•
Document thickness: 31 g/m
2
to 209 g/m
2
(
8
.3 lb to 56.1 lb)
(0.04 mm to 0.26 mm or 0.002 in. to 0.010 in.)
•
Document length deviation: 1% or less
•
Punched holes are not allowed within 35 mm (1.3
8
in.) of the
vertical center line of document.
•
Do not glue separate paper within 35 mm (1.3
8
in.) of the
vertical center line of document.
！
！
！
•
If scanning a document as in the bad example above, the
indicated section may be caught during feeding. This might
cause a paper jam or make the document torn.
•
If the non-rectangular section or tab of the document (see
the figures above) is off the paths of the two Feed Rollers
inside, it will not be fed properly. As a result, this part will
remain in the ADF, and make the scanned image elongated
accordingly.
Feeding
direction
Ex: Tab
Ex: Non-rectangler document
Feeding
direction
Ex: Tab
Ex: Non-rectangler document
Easy-to-tear section
