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×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
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×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -

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07-02-2019 09:16 AM - edited 07-02-2019 09:17 AM
@LAWRIC70, Welcome to the HP Support Community!
Are you trying to connect the printer wirelessly to your router and MAC?
Use WPS method to connect the printer to the wireless network
Locate the WPS button on your router, but do not press it yet.
If your router does not support WPS, skip to the next step to connect the printer with the HP Smart app.
Turn on the printer. If the printer is in sleep mode, press the Cancel button on the control panel.
On the printer control panel, press the Wireless button
> Restore Network Defaults and then select WPS > Push ButtonOn the router, press and hold the WPS button for 3 to 5 seconds or until it shows that the WPS connection process has started.
note:
The printer stops searching for a WPS connection two minutes after the wireless button is pressed. If you were unable to press the WPS button within that timeframe, attempt these steps again.
Once the printer connects to the wireless network, the blue Wireless light on the control panel turns on solid.
HP Photosmart C4780 All-in-One Printer is not AirPrint compatible. Install the printer driver via Apple software update.
1.) Use the steps available here to update the software on Mac.
2.) Click the Apple menu, click System Preferences, and then click Print & Scan or Printers & Scanners.
3.) Check if your printer name displays in the Printers list, If your printer is listed, click the printer name, click the minus sign
to delete the printer.
4.) If you see multiple printer queues for the same printer, remove all extra printers by selecting them one at a time, and then clicking the minus button
at the bottom of the list.
5.) Click the plus sign
, click Add Printer or Scanner, click the printer name.
6.) Click the Use or Print Using menu, select the name of your printer in the pop-up menu. Then click Add.

7.) Try to print.
Let me know how this goes.
If you feel my post solved your issue, please click “Accept as Solution”, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!
KUMAR0307
I am an HP Employee