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4.5.5 Thermal Printer Test
Thermal printer test is provided to check the thermal printer module. At this
test the print test pattern will be printed. If printing quality is not good
cleaning the printer head. Printing quality is not improved after cleaning,
please contact to service center.
Figure 4-9 Thermal Printer Test
4.5.6 RS232 Test
Warning: Electrical shock hazard
 Avoid enter electrically conductive object, such as metal clip, metal wire,
or staples, inside of device. Do not contact metal part of case except
RS232 port with electrically conductive object when the device is
operating it may cause electrical shock hazard.
The RS232 test is provided to check the RS232 communication module.
Before this testing pin 2 and 3 are should be shorted. Figure 4-10 shows pin
layout of device.
Figure 4-10 RS232 Test
YM303i 3channel Resting ECG System – Operator’s Manual
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