Thermal printer can not printing test
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- xhxhxh555
- Posts: 2
- Joined: Thu Mar 21, 2019 8:41 pm
Thermal printer can not printing test
Hi, I buy a thermal printer use RS232 interface. But it don't printing test. I press button long time but printer no printing test( no working). I press button then the paper rolls out for about 10mm and stops. I check paper is right. When I supply power, led green is on. I using supply power change and increase voltage from 5 to 9 V, current supplies is 3A but no working?.
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