The cause of the printer failure

1. Check if the printer is online. On most printers, there is a light next to the "OnLine" button indicating the online status. Under normal circumstances, the online light should be on. If this indicator is off or blinking, the connection is abnormal. Check whether the printer power is on, whether the printer power switch is on, and whether the printer cable is properly connected. If the online indicator is normal, turn the printer off and on again to see if the print test page is normal.

2. Check if the printer is set as the default printer. Click Start/Settings/Printer to check if there is a black hook on the currently used printer icon and then set the printer as the default printer. If there are no printers used in the Printers window, click the Add Printer icon and follow the prompts to install.

3. Check if the current printer is set to pause printing. The method is to right-click the printer icon in the Printers window and check if there is a small hook on the "Pause Print" option in the drop-down menu that appears. If "Pause Print" is selected, cancel this option.

4. Just type in some text in Notepad and click Print on the File menu. If you can print a test document, then you have a problem with the print program. Check whether the correct printer is selected for WPS, CCED, Word or other applications. If it is a print file generated by the application, check the print output generated by the application. is it right or not.

5. Check whether the free space on the hard disk of the computer is too small. If the free space of the hard disk is less than 10MB, it cannot be printed. Check the method is to right-click on the hard disk icon in the "My Computer" and select "Properties", check the hard disk space in the "General" tab, if the hard disk If the remaining space is less than 10MB, you must empty the Recycle Bin to delete temporary files, expired files, or files that are no longer in use on the hard disk to free up more space.