In this case, first print the queue within a limited time, and then click the Print Queue button.
If the display is off-line, first check whether the wrong printer is selected, and then check whether the printer power supply has been turned on; Finally, check whether the USB interfaces at both ends are in good contact.
If "Pause" is displayed, click "Printer" to cancel the pause of printing, and remove the √ before "Temporary Printing".
If "printing succeeded" is displayed, but the printer does not print, it may be that the printer crashed. Try restarting the printer and printing again.
Reason 2: Express bill printing component
Open the interface of express printing component. For example, the "Task Status" column of the rookie printing component shows "Printing Paused", just click "Continue Printing".
If the printing component is blank and the printer model is not displayed, try restarting the courier printing component and printing again.
Reason 3: System problem.
If it is a system problem, first of all, check whether there is any spare hard disk capacity, and leave at least 2G of free space.
Then check whether the driver of the express printer is installed correctly, otherwise it needs to be deleted in "Device Manager -USB Controller-Printer Options", and then reinstall the driver. There is also to see if the port selection of the printer is correct.