Sindoh M611 - Manual (Page 243)

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Maintenance and Troubleshoot
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 printer 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 printer driver.
6) Check if data is sent from the printer status window.
Reference
- Printer 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.
roubleshooting: Contact our dealer.
Trouble 9: The device is on but the lamp in the control panel is not on.
Troubleshooting: The lamp can be on several seconds later.
Check if the power cord is properly connected