Service manual

09/09 Rev. 5.02-02 SERVICE MANUAL Service Electronics
AP 4.4 – AP 5.4 – AP 7.t
35
Sensors on the CPU board (AP7.t)
¯ If the printer is equipped with both reflex sensors (top and bottom), the
following must be taken into account:
– The sensor value of the open sensor („No material“) can not be read back.
– The label material applied for setting purposes must in any case be light-
tight. If any light shines through, light-tight material (e.g. cardboard) must
be layed under the label material.
Sensor
#
Sensor
name
Connector # Typical value Condition
0.01 Punch CN 905 8-20 No material in light
barrier
30-90 Only backing paper in
light barrier
140-255 Label material in light
barrier
0.02 Foil CN 906 4-8 Light barrier open
220-255 Light barrier covered
0.03 Lever CN 907 4-8 Light barrier open
220-255 Light barrier covered
0.04 Reflex CN 908 7-30 White material over
sensor
30-180 No material
180-255 Black material over
sensor
0.05 Reflex O CN 909 7-30 White material over
sensor
30-180 No material
180-255 Black material over
sensor
0.06 Cover CN 910 0 Cover closed
220-255 Cover open
0.07 H-Temp CN 901-903 appr. 100-140 Printhead is very hot
appr. 141-255 Normal printhead
temperature
0.08 P-Temp CN 701 Power supply
temperature (depends on
the PS type)
0.09 H-Supp CN 901-903 0 No 5V supply for
printhead
a)
255 5 V supply for printhead
o.k.
[Tab. 9] Sensor test conditions for sensors, which are connected to the CPU board
(AP 7.t).