If your hp printer showing offline windows 10, there are a few things you can try to fix the issue:

Check the printer's connection: Make sure that the printer is properly connected to your computer and to the power source. Also, check that the cables are not loose or damaged.

Check the printer's status: Go to the Control Panel > Devices and Printers, and check that the status of your printer is not "offline". If it is, right-click on the printer and select "Use Printer Online"

Restart the printer: Turn off the printer, unplug it from the power source and wait for a few minutes. Then plug it back in, turn it on, and check if it's now online.

Restart the computer and router: Shut down your computer and unplug your router for a few minutes, then plug it back in and start your computer again.

Update the printer driver: Make sure that you have the latest version of the printer driver installed on your computer. You can download the latest driver from the HP website.

Troubleshoot the printer: Windows has a built-in troubleshooter for printers that can help identify and fix common issues. Go to the Control Panel > Troubleshoot, select "Printers" and then follow the prompts to troubleshoot the printer.

Check for Windows updates: Make sure that your Windows is up to date. Go to the Settings > Update & Security > Windows Update and check for any updates.

Check the Firewall settings: Ensure that the Firewall settings are not blocking the printer.

If the issue persists, try contacting our technical support for further assistance. They may be able to provide additional troubleshooting steps or help you determine if the problem is with the printer hardware or software.