[Office Partner Information Center] After using the Windows program to issue a command to print a document to a local printer, what should I do if the document cannot be printed at all? Here is a pin printer as an example to teach you a few tricks, hoping to solve your urgent needs. After using the Windows program to issue a command to print a document to a local printer, what should I do if the document cannot be printed at all? Here I use the dot matrix printer as an example to teach you a few tricks, hoping to solve your urgent needs. 
First, the printer is online.
If the printer is not online, it will not print.
Second, re-open the printer.
If the printer is still online and you still can't print the document, you can turn the printer back on, which not only clears the printer's memory, but also solves a lot of printing problems.
Third, set the printer as the default printer.
Proceed as follows:
1. Click the Windows Start menu, point to Settings, and click Printers to open the Printers window.
2. Right click on the printer icon, the system pops up the shortcut menu, click "set as default".
Fourth, cancel the pause to print.
To do this, in the Printers window, right-click the printer icon you are using, and then click to clear the checkmark √ before the Pause Printing option.
5. Make the available space on the hard disk no less than 10MB.
If the available hard disk space is less than 10MB, you must free up more space system to complete the print job. In this case, click the "Disk Cleanup" button, then in the "Files to delete" list box, select the file type you want to delete and click the "OK" button.
6. Increase the printer's timeout setting.
Check or change the timeout settings as follows:
1. In the Printers window, right-click the printer icon and click Properties.
2. Click on the "Details" tab and add various timeout settings under "Timeout Settings". The Unselected item is the time that specifies Window s to wait for the printer to come online, and an error message will be displayed after the specified time has elapsed.
7. Make sure to print to the appropriate local printer port.
Proceed as follows:
1. In the Printers window, right-click the printer icon and click Properties.
2. Click on the "Details" tab and in the "Print to the following port" box, make sure the printer is set to the appropriate port. The most commonly used port is set to "LPT1", and some printers use a USB port.
Eight, the output generated by the program is not correct.
To determine if the output generated by the program is correct, you can use the method of printing the document by other programs. We print the test document in "Notepad" as follows:
1. Click "Start", point to "Programs", point to "Accessories", click "Notepad", open the "Notepad" window.
2. Type a few lines of text, then on the File menu, click the Print command.
If you can print the test document, it is the original program you used to print, please re-install the program.
9. Reinstall the printer driver.
Sometimes the printer driver may be corrupted, causing an error that the document cannot be printed. We can reinstall the appropriate driver and then print it.
1. In the Printers window, right-click the printer icon, click Remove, and then click the Yes button. If you are prompted with "Delete special files for this printer", click the "Yes" button. If you are prompted to delete the default printer, click the OK button.
2. In the "Printers" window, double-click the "Add Printer" icon, open the "Add Printer Wizard", click the "Next" button, and then execute the screen command. 10. Make sure the port and printer cable are working properly.
After doing the above nine tasks, the following methods can help you find out where the problem is:
1. Is the printer cable connected securely? If the computer is directly connected to the printer, make sure that both ends of the cable connecting the computer to the printer are plugged in. If you are using a print switching device, bypass the switching device, connect the printer directly to your computer, and try to print.
2. Test port connection Connect the printer to another available port, retry printing the document, and if it can print, the original port is damaged.
3. Test the printer cable and replace it with another printer cable, then retry printing the document. If it prints, the original cable is damaged.
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