If you can't print, you need to see if there is any error. Generally, the problem is judged based on the error.

1. If you are still prompted to download the control, you need to click on the download link of the Cainiao control official website and download the 32-bit and 64-bit controls. Both need to be downloaded, and both must be downloaded and upgraded successfully. (If you don't have a link, you can directly ask the customer service of "Express Assistant" for one)

2. After the download is complete, the Qianniu version will take effect only after restarting the computer, and the web version can be directly refreshed.

3. If the page is normal, click Print, and the printer reports an error. At this time, you need to clear the printer task and restart the printer to try again.

If you still can't figure it out, I'll teach you a little trick. Order the trial version of Express Assistant for free, and then ask their customer service to help you eliminate the cause. They are very professional! ! ! If you have other questions, you can send me a private message, and I will definitely reply to you when I see it~