The solution is as follows:

1. First, you need to ensure that the computer USB port is available: in the "Device Manager" interface, expand the "Universal Serial Bus Control" list, Make sure the USB port driver is in a normal state. Otherwise, you need to install the USB serial port driver

2. Next, you need to connect the USB printer to the computer normally and install the printer driver. It is recommended to install the printer driver from the driver CD that comes with the machine. Of course, you can also use "Driver Life" or "Driver Wizard" to complete the installation of the printer driver

3. After completing the installation of the printer driver, you also need to remove the USB port that has been blocked due to illegal operations. Disabled issue. You can directly find the corresponding printer driver name in "Device Manager", right-click and select "Enable", or use a third-party operating system management tool. Directly search and download "General Trend USB Control System" in 360

4. After installing this tool, press "Alt+F2" to wake up the program's main interface, and clear the check "Disable" in the "Port Control" column Printer" item, or check and then clear this option to ensure the normal use of the printer port

5. If the printer failure still cannot be repaired through the above methods, you need to check and enable the "Print Spooler" service Let's try to solve it. In the "Computer Management" window, expand the "Services" item and find the "Print Spooler" item on the right to ensure that this service is turned on normally

1. Device driver (English: device driver), referred to as A driver is a program that allows high-level computer software to interact with hardware. This program creates an interface for communication between hardware and hardware, or between hardware and software, via the motherboard. A bus or other communication subsystem forms a connection mechanism with hardware. This mechanism makes data exchange on hardware devices possible.

2. Drivers can be 8-bit (8-bit), 16-bit (16-bit), or 32-bit (32-bit) based on different computer architectures and operating systems. Even the latest 64-bit, which is to reconcile the dependencies between operating systems and drivers.

3. For example, in the 16-bit operating system era of Windows 3.11, most drivers were 16-bit. In the 32-bit Windows XP, most of them used 32-bit drivers (provided by Microsoft) Windows Driver Model can implement driver), as for 64-bit Linux or Windows Vista platform, you must use 64-bit driver (both WDM and WDF can implement 64-bit driver).