SCANNING
10 August, 2001
2-4
Original Size
Length Sensor
Width Sensor
A4/A3
version
LT/DLT
version
L4
L3
L2
L1
W2
W1
A3
11" x 17"
O
O
O
O
O
O
B4
10" x 14"
O
O
O
O
O
X
Foolscap
8.5" x 13"
O
O
O
X
X
X
A4-L
8.5" x 11"
O
O
X
X
X
X
B5-L
O
X
X
X
X
X
A4-S
11" x 8.5"
X
X
X
X
O
O
B5-S
X
X
X
X
O
X
A5-L, A5-S
X
X
X
X
X
X
NOTE:
1) L: Lengthwise, S: Sideways, O: High (paper present), X: Low
2) The length sensors L3 and L4 are used only for 230V machines.
For other combinations, "CANNOT DETECT ORIG. SIZE" will be indicated on the
operation panel display (if SP 4-303 is kept at the default setting).
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's productivity.
However, if the by-pass feeder is used, note that the machine assumes that the
copy paper is lengthwise. For example, if A4 sideways paper is placed on the by-
pass tray, the machine assumes it is A3 paper and scans the full A3 area for the
first copy of each page of the original, disregarding the original size sensors.
However, for each page, the data signal to the laser diode is stopped to match the
copy paper length detected by the registration sensor.
Original size detection using the ADF is described in the manual for the ADF.
W2
W1
L1
L2
L3
L4
B027D555.WMF