Win7 cannot recognize the printer solution:

Download the driver that matches the printer model. The model number of the printer can be found on the trademark on the surface of the machine. If you cannot find it, you can determine it by checking the relevant manual. For most printers, the driver CD will be included with the manual when purchasing.

Select "My Computer" on the desktop, right-click and select "Manage"; in the "Management" window, select the "Services" option under the "Services and Applications" extension, and it will appear on the right Find the "PrintSpooler" service in the system service list. After finding "print spooler", start the service.

Double-click the installer in the driver CD to install the printer driver. For drivers downloaded from the Internet, you must first decompress them. Find the exe file in the decompressed directory and double-click it to start the installation program. The installation procedure is relatively simple, just click Next to complete the driver installation.

Connect the printer's USB interface or other interface data cable to the computer, and then turn on the printer power. At this time, the computer can correctly identify and automatically install the corresponding printer driver.

At this time the printer is still not recognized. You need to install the driver on your phone.

The method is: open "Control Panel" - "Hardware and Sound" - "Devices and Printers", right-click the window content area, select "Add Printer", and select "Add Local Printer" in the next step , select "USB virtual printer port" for the port, select the driver "Install from Disk" in the next step, then navigate to the driver directory to install, and restart the computer after completion.