Method 1: Check whether the self-test is normal. If not, please contact the dealer or technical service personnel;Method: If the self-test is normal, check the connection of the data cable. Make sure the data cable is properly connected between the printer and the computer. The data transfer settings between the printer and the computer need to be consistent.
Reason: Printer and computer baud rates do not matchMethod: keep the device and printer baud rate consistent1.Print the self-test page to confirm the printer baud rate, please check "serial config”2.Change the serial port baud rate of the computer: control panel - view devices and printers - right click on the printer - printer properties - port - configure the port - modify the baud rate - apply - OK.
Method 1: Check if the network cable is connected correctly.Method 2: Gateway error: Check the self-test information on the self-test page, whether the IP is the same as the computer' s gateway, if different, use "Printer Test" to set the settings to open the printer's DHCP.Method 3: IP conflict: modify the printer IP address: use "PrinterTest" to set, connect the printer-NEW IP-input IP-set New IP.
Reason: 1. Low printing density 2. Poor paper roll quality 3. The life of the print head is approaching to end.Method 1: Modify the print density: use "Printer Test" to set, connect the printer - advanced - Density set - enter the density value (the larger the value, the higher the density value) - click set;Method 2: Replace the paper roll;Method 3: Replace the print head.
Reason: The printer was set up incorrectly.Method: Restore factory settings; Operation guide: Turn off the power of the printer - press the "FEED" button - turn on the power at the same time - when the ERROR LED light and the PAPER LED flash twice at the same time, release the "FEED" button and hear a beep to restore Factory successfully.
Reason: The printer turns on Chinese modeMethod: Turn off the Chinese mode: use "Printer Test" to set, connect the printer - Advanced - DIP Setting - Chinese mode select "NO" - click Setting
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