Sindoh M403 - Manual (Page 217)

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Maintenance and Troubleshooting
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Trouble 3: The device cannot print.
Troubleshooting : 1) Check if Ready is displayed on the LCD.
2) Check if paper is fed.
3) Check if the device language and driver are properly selected.
4) Check if the USB cable is properly connected.
5) Check if the correct paper size is selected in the printer setting or
device driver.
6) Check if data is sent from the device status window.
Note
- Device status checking methods may vary by OS.
For more information, see the OS manual or help.
Trouble 4: The USB memory is connected but the device cannot print.
Troubleshooting : Check if your OS supports the USB memory.
Trouble 5: There is a problem in paper feeding or several sheets of paper are fed at once.
Troubleshooting : 1) Check if proper paper is used.
2) Reload paper by changing its side or orientation and check if printing
quality is improved.
3) Adjust paper with guides.
Trouble 6: Paper from the different tray is used.
Troubleshooting : Check paper setting in the printer setting or printer driver
Trouble 7: Output page is not correctly stacked.
Troubleshooting : Reload paper by changing its side or orientation.
Trouble 8: Parts are lost or damaged.
Troubleshooting : Contact our dealer.