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（2）Adjusting the Ribbon Sensors
Monitor the Ribbon Sensor R, C (VR2, VR4) as follows.
① Turn the printer ON.
② Run OP2-Tools and select the printer to be adjusted.
③ Run the OP2-Tools Sensor Monitor, and begin measuring.
④ Set the ribbon so that the Cyan area is over the sensor. ※ Use an unused section of ribbon.
Ribbon sensor
⑤ Manually rotate the head up roller, so that the shading plate is positioned to block the sensor.
Ribbon rewind gear
Shade plate and sensor
Shade plate
Sensor
⑥ Adjust each ribbon sensor.
⑦ Slowly rotate the ribbon uptake gear, and check the voltage as the ribbon mark (black area) passes
each sensor..
⑧ Turn the power OFF, then ON, and return the head up cam to its home position.
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