Document Scanning Steps - Lexmark X940e Service Manual

7510-XXX
The table below shows the combinations of document sizes and sensors.
Width (Fast scanning direction)
Sensor (document tray width *)
Document Size
1
5.5 X 8.5 SEF Off
A5 SEF
B5 SEF Off
8 X 10 SEF
8 X 10.5 SEF
A5 LEF Off
A4 SEF
5.5 X 8.5 LEF Off
8.5 X 11 SEF
8.5 X 13 SEF
8.5 X 14 SEF
8 X 10 LEF On
B5 LEF
B4 SEF
8 X 10.5 LEF On
Executive LEF
16kai LEF
8kai SEF
8.5 X 11 LEF On
11 X 17 SEF
A4 LEF On
A3 SEF
O: Detectable
X: Not Detectable
While the document is traveling, document size detection is performed as follows.
When the document goes through the sensor (ADF APS 1), sensor (ADF APS 2) and the sensor (ADF APS 3),
the document width in the fast scanning direction is detected according to the combination of shielded/
unshielded status of each sensor.
The document length in the slow scanning direction is detected by the scanning time measured from the
moment when the document starts scanning from the wait position (see Pre-registration) until its tail end passes
through the sensor (ADF sheet through).

Document scanning steps

1-54
MFP Service Manual
Length (Slow scanning direction)
Sensor (document tray length *)
2 3
Off Off
Off Off
On Off
On On
Off On
Off Off
On Off
On On
1 2
On Off
On Off
Off Off
On Off
Off Off
On Off
On On
On Off
Off Off
On On
On Off
Off Off
On On
On Off
On On
On Off
On On
Area
0 1 2
X O X
O X O
X X O
X O X
O X X
O O O
O O O
O O O
O O O
O X X
X O O
O O O
O O O
O O O
O O X
O O X
X X O
O O O
O O O
O O O
O O O
O O O