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PTM 2-15 B070/B071
NOTE: The Europe/Asia model has one length sensor (L1), but the North American
model has two length sensors (L1, L2)
Original Size
Length
Sensor
Width Sensor
A4/A3 Version LT/DLT Version 2 1 1 2 3
SP4301
Display
A3 11" x 17"
H
H H H
H
00011111
B4 10" x 14"
H H H H L
00011110
F4 81/2" x 14" (8" x 13")
H H H L L
00011100
A4 SEF 8
1/2
" x 11"
L
H H L L
00001100
B5 SEF —
L H L L L
00001000
A5 SEF 51/2" x 81/2"
L L L L L
00000000
A4 LEF 11" x 81/2"
L L H H
H
00000111
B5 LEF —
L L H H L
00000110
A5 LEF 81/2" x 51/2"
L L H
L
L
00000100
H
:High (Paper Present)
L
: Low
The original size data is taken by the main CPU when the DF position sensor is
activated. This is when the ADF is positioned about 12 cm above the exposure glass.
At this time, only the sensor(s) underneath the original receive the reflected light and
switch on. The other sensor(s) are off. The main CPU recognizes the original size
from the on/off signals from the five sensors.
If the copy is made with the ADF open, the main CPU decides the original size from
the sensor outputs when the Start key is pressed.
The above table shows the outputs of the sensors for each original size. This original
size detection method eliminates the necessity for a pre-scan and increases the
machine productivity.
0,0
Length Sensor 1
Width Sensor 1
Width Sensor 2
Width Sensor 3
A5 SEF
B5 SEF
A4 SEF
A5 LEF
A3
B4
A4 LEF
Length Sensor 2
B070D931.WMF