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5. Adjust the sensor to read the forms background brightness.
202
Operating the InfoPrint 4100
1
7
b. Open the upper mark sensor assembly (7) by raising the upper mark sensor
assembly lever (8).
c. Align the opening of the scale alignment guide (11) with the mark (2) using
the Forms Feed Forward and Forms Feed Reverse buttons (3). While in
sensor adjustment mode these buttons will move the forms very slowly. Use
Forms Feed Forward/Reverse with the sensor closed until the lowest value
is displayed.
d. Close the upper mark sensor assembly (7).
e. Rotate the mark sensor positioning knob (6) until the brightness reading is
at it's lowest point.
f. Press and hold the orange UP button until the displayed numbers blink
twice then release the UP button. The display will alternate between a
brightness (1) / mark threshold (2) reading similar to this
and this display
1
3
4
5
9
6
8
.
11
12
2
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