Epson TM-U220 Series Service Manual page 18

Confidential
When the sensor detects the printer operation correctly, OK is displayed.
When the sensor is not installed (depending on the printer model), you can skip with the Skip button.
Test results are OK when the tests confirm the normal operation of the sensors.
Output result
When the printer operates normally, the following sheet is printed. Refer to the chapters on
Troubleshooting and Adjustment and Setting when print results differ.
2-8 Repair Guide
1. Sensor to test is indicated
2. Operate the printer in accordance
with message
3. Click If you cannot test
Rev. A