If you try to print and see a message that the printer is offline, here are some things to check.
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Make sure that the printer is plugged in and powered on.
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Make sure that the printer and computer are connected to the same wireless network.
To verify this, print out the network settings for the printer and compare the network name (SSID) to the network name for Windows or the network name for Mac®.
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Check the signal strength of the printer.
To do this, print out the network settings. The higher the percentage, the stronger the signal. If the signal strength is lower than 80%, move the printer closer to the router if possible.
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If you're using a Windows PC, make sure that "Use Printer Offline" is not enabled.
To check, follow these steps:
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Hold down the Windows 
key on the keyboard and type the letter R. This opens a Run box.
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In the Run box, type control printers and select OK.
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Right-click on the icon for your printer, then select See what's printing.
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Select the Printer menu, then remove the check from Use Printer Offline.
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Try to print again.
If this doesn't resolve the problem
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Make sure that you've selected the correct printer.
If the print job is sent to a printer no longer connected to the computer, you may see this:
If the print job is sent to the correct (connected) printer, you will see this:
- You may need to power cycle the printer and wireless router to restore network communication.
