9.1.
9.
Sensors and Detectors:-
'Sensor Check'.
The Autofold is equipped with a total of four Sensors & two Detectors. They all have indicator
LED's on the Main Control Board & their operation can be checked from the Advanced Tools
Menu. The sensitivity of the Sensors can be adjusted individually by adjusting the appropriate
Potentiometer on the Main Control Board using a small insulated electrical screwdriver. The
Detectors have no adjustments.
Check the operation of each Sensor or Detector in turn by entering the Tools Menu &
operate
Operate each sensor manually.
The
registers the lead edge of the sheet to within 0.1mm. Its correct
setting is extremely critical to the performance of the machine and
The sensitivity of the Lead Edge Sensor can be adjusted with the Crease Edge pot (VR4) as
follows:-
Manual adjustment of the Crease Edge pot (VR4), (steps 9.2 & 9.3 below), is not necessary for
machines that have Lead Edge Auto Sensing. (i.e. machines with a Serial No. 180209 or
higher; or earlier machines that have been upgraded). Upgraded machines will have a main
processor revision of F1.2x2 or higher and a touchscreen software revision of AF1.0x1 or
higher.
9.2 Ensure the Red LED3 on the Main Control Board is Off. Place an 80gsm
sheet on the Loading Table with its Lay Edge against the Fixed Side Lay. Slide the
sheet up to the Input Rollers & rotate the machine by hand to drive the sheet
through the Lead Edge Sensor. The display will show Error Screen 60, and LED3
should come on as the sheet passes through the sensor beam.
9.3. Ensure there is no paper in the machine before setting the sensitivity. This is done by
adjusting the Crease Edge pot (VR4), on the Main Control Board. Turn the pot fully
anti-clockwise. Turn the pot clockwise until LED3 is just On, and then back anti-
clockwise 60° (i.e. about 10 clock minutes).
Lead Edge Sensor
any adjustment of its
sensitivity will require re-calibration of the machine.
Note:-
Note.-
If LED3 does not come On, when VR4 is set between the 6 o’clock and 9 o’clock positions the
Lead Edge Sensor should be replaced. (See Below)
VR4
VR4
VR4
Fully anti-clockwise Posn.
6 o’clock Posn.
9 o’clock Posn.
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