Epson SQ-B50/2550 Technical Manual page 196

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REV.-A
Step 7 Remove the lead wires from the ink end sensor and thermistor set from the hooks ofthe cartridge
holder. And remove the thermistor.
Step
8
Pull out the ink end sensorfrom the two sensor supporting pins while using yourfinger reloosen
the hook securing the ink end sensor.
Hook
Lead
wires
Thermistor
Ink end sensor
Figure 4-40. Ink End Sensor and Thermistor Removal
ASSEMBLY POINTS:
When attaching the micro switch to the ink end sensor, be careful of the assembly procedure (the
black lead wirte must be installed first) and mounting direction (see Figure 4-41).
Check that the lead wires from the ink end sensor set and thermistor set run correctly.
When attaching the cartridge holder unit to the base frame, turn the printer mechanism over so that
the unit can be attached easily, and check that the hooks of the cartridge holder mate correctly with
the cutouts in the base frame.
Thermistor
<
Right Side>
Ink end sensor
<Back>
Figure 4-41. Ink End Sensor and Thermistor Installation
4-34

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