Panel Functions
93
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Microplex
logiJET TC8
Edition 1.2
7.2.3.1. Reflex Sensor (Black Mark Sensor)
Working Steps as Flow Chart:
Set the Reflex sensor current (CV value) as follows:
In the printer Menu go to Paper Menu\Paper Type and select Black Mark
(PREV or NEXT key, then ENTER)
Go to Engine\Sensor Test and select Reflex (PREV or NEXT key, then ENTER)
Leftmost: VV= currently measured sensor value (Level) At the right: CV= reference value for sensor current
Load your paper into the sensor area
Set
CV (reference value sensor current) in the first instance to approx. 60 % (using PREV or NEXT key)
Increasing the CV current value (NEXT key) reduces the
sensor measured value (VV level) (PREV key increases)
Sensor measured value (VV level) of black mark
as possible more than 45 % ?
Place the black mark of your material in the sensor area
Set the switching threshold of the Reflex sensor:
Set the switching threshold to the middle between the paper level and the black mark level:
Save the new switching threshold (level) using the ENTER key
Yes
Yes
No
No
The level (contrast) measured by the sensor is displayed. Press ENTER once again
Measure both sensor levels once again, thereby notice the values for Paper and Black mark.
(You need the two level values of your material for the following switching threshold adjustment)
Save the new CV value (ENTER; CV = reference value sensor current)
At the right the switching threshold value is displayed.
Graphical explanation for switching threshold setting:
Level
in %
Black mark
Mean value is to be used as
Switching threshold
Paper
0
Sensor measured value (VV level) of paper
less than
10
%
?
Start the printer in the Service Mode
Reducing the CV current value (PREV key) increases the
sensor measured value (VV level) (NEXT key decreases
)
Go to Engine\Sync.Menu\Sync.Sens.Level
Shift the Reflex sensor (R) to the position of the black marks
Hint:
The displayed level
value is directly
valid for printers
with a threshold
setting range from
0 to 100%.
If your printer is
provided with a
threshold setting
range from 0 to
200%, the setting
value has to be
doubled.
