Intermec EasyCoder PX4i Service Manual page 105

Sensor Replacement
EasyCoder PX4i and PX6i Service Manual
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Before replacing the sensor, check that the sensor arm is properly adjusted
and that the sensor is free from dust, paper shreds, and other things that
can block the light.
Replace the sensor as follows:
• Switch off the power, remove the power cord, and remove the cover over
the electronics compartment.
• Check that the printhead is lowered.
• Remove the #T10 Torx screw that holds the front of the sensor.
• Raise the printhead.
• Remove the #T10 Torx screw that holds the rear of the sensor.
• Pull out the sensor and disconnect its cable from the CPU board.
• Reassemble in reverse order. The sensor's cable should be connected to
J58 (marked "HEADLIFT") on the CPU board.
• In Fingerprint, check that the sensor works properly using a PRSTAT
statement, see Intermec Fingerprint v8.xx, Programmer's Reference
Manual.
• In IPL, check that the sensor works properly using the Label Path Open
Sensor Value command (<STX>L<ETX>), see IPL Programming, Refer-
ence Manual.
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Chapter 8 — Print Unit
95