Double-Feed Detection - Formax FD 3302 Operator's Manual

Chapter Advanced Operation
3
9-3.

Double-feed detection

Double-feed detection refers to a function that reads the thickness of paper on test folding and detects
when more than one sheet of paper is fed into the machine at a time.
When the ultrasonic sensor is set, there is no need to perform test folding.
I I
II
Touch the
7
The [Double Feed Detect] screen is displayed.
No. Name
D-Feed Detect
[1 l
Thickness
[2]
After setting, an icon is displayed on the touch panel display section.
When the optical sensor is enabled
• Set the paper [Thickness] to [Thin] when normal operation is performed.
If a double-feed is wrongly detected though the paper thickness is set to [Thin] and no double-feed
occurs in test folding or normal operation, set to [Thick].
• Perform test folding before you start processing paper folding.
The machine will not start if test folding is not performed even when the¢ key is pressed.
When test folding is performed, the icon changes from
• The data on paper thickness read by test folding will be cleared by changing the [Thickness] in the
double-feed detection setting. Test fold again when the setting is changed.
• Be sure to perform test folding every time printing materials are changed to different ones
even if the quality and thickness of paper used are the same. Double-feed may not be
detected correctly if processing is started without test folding.
• Double-feed detection may not work properly if printing on paper is uneven or paper is
misaligned.
• When
Detect] is set to on, if double-feed occurs on test folding, perform test folding
[0-Feed
again. Otherwise, double-feed will not be detected properly.
68
key on the top screen-> Touch the� key-> Touch [0-Feed Detect].
D-Feed
@Thickness
l!I
0
Double Feed Detect
Sets whether to enable double-feed detection.
When the OF ULTRASONIC SENSOR KIT is not registered, on/off can
be changed with the checkbox.
!Ea�
Enables the optical sensor.
� Enables the ultrasonic sensor.
When the optical sensor is set for double-feed detection, set the
thickness of the paper.
When the ultrasonic sensor is selected, the key is grayed out and
cannot be operated.
1 1 °@ 11
� ·
□ �
110
II@
Thick r-[ 2 1
Thin
ct
Function
fji1
to�.
[
11
Default
value
-
Thin