Printing machine is always not easy to use, ask the network management words also said no way, also said that there are several people are so. But if you dig down, you'll always have the printer offline.
1, open "devices and printers" will find that the printer's icon appears to be gray, that is, offline browsing state. If you want to use it, you have to reinstall it online.
2, every time I reinstall, I actually notice the following "Remember my credentials."
3, after the successful installation, click the "Control Panel" → In the "category" mode of display to select "User account and home security" → "Credential Manager", found that the credentials are saved, but the red box in the following figure is displayed as "permanent: logon session." After the internet to find out, in fact, the problem is here, this means that the login will lose credentials, so the printer will also appear offline.
4, want to solve, first of all refer to the above figure Delete this credential, and then click "Add Windows Credentials", that is, manually added.
5, manually added after looking at the credential information, has been shown as "enterprise", so that the credential will be permanently saved, the problem can be resolved.
6, Success!
That's the Win7. Unable to save credentials causes the network printer to go offline how to solve the introduction, hope to help everyone!