Sensor Malfunctions; Label Stop Sensor (Lss); Headlift Sensor - Intermec EasyCoder 601 XP Service Manual

17.11 Sensor
Malfunctions
Intermec EasyCoder 601 XP – Service Manual Ed. 3
Description:
Label (ticket) gap or black mark not detected by the label stop
sensor (LSS).
Possible Causes and Suggested Remedies:
• Lost or obsolete paper feed data , for example after a headlift or
change of media.
- Perform a TESTFEED operation, e.g. by simultaneously
pressing the <Shift> and <Feed> keys.
• Bad LSS lateral alignment.
- Check that the gaps or marks actually pass through the label
stop sensor (lateral alignment), see chapter 8.6.
• Light path obstructed.
- Check that both the upper and lower sensors are free from
paper dust.
- Check that the windows in the upper and lower guide plates
are clean and free from e.g. stuck labels.
• Printer set for wrong paper type.
- Check that the printer is correctly set up for the type of media
in use.
• Bad connection
- If the label stop sensor still does not operate correctly, check
the condition of its cables and that they are correctly connected
to the CPU board (lower sensor to P54; upper sensor to P53).
Note that these two cables could be switched to detect black
marks at the top of the paper.
• Other faults:
- Run the LSS-SENSOR.PRG program as described in Appendix
3 to diagnose the values from the Label Stop Sensor (LSS).
• Faulty sensor.
- Replace as described in chapter 8.6.
Description:
The printer does not work, although the printhead is lowered.
Error condition 1022 "Head lifted" is indicated at any attempt
of printing a label.
Possible Causes and Suggested Remedies:
• Loose headlift arm or headlift arm in wrong position.
- Check that the headlift sensor arm is firmly attached to the
headlift shaft and that it is properly adjusted, see chapter 8.8.
• Headlift sensor blocked.
- Check the sensor for paper dust or foreign objects.
• Bad connection.
- Check that the sensor's cable is connected to P50 on the CPU
board. Inspect cable for damage.
• Faulty sensor.
- Replace as described in chapter 8.8.
Chapter 17 Troubleshooting
151