I recently completed a 123.hp.com Install using 123.hp.com/setup on my Mac, and this quick guide shows the exact steps I followed for a smooth HP printer setup with the right HP driver download.
Preparation checklist
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Printer model and serial number handy
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Wi‑Fi name and password (preferably 2.4 GHz)
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Mac computer with admin rights
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USB cable (optional for wired setup)
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Latest HP driver download ready if auto‑install fails
Short step‑by‑step install (Mac)
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Turn on the printer and connect it to power.

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On your Mac, open Safari and go to 123.hp.com/setup.
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Enter your printer model, select macOS, and click Download for the HP driver.

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Open the downloaded file (.dmg) and run the installer.

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Follow on‑screen prompts to connect the printer via Wi‑Fi or USB.

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Complete the installation and print a test page to confirm the HP printer setup.

One real problem I faced and how I fixed it
During installation, my printer didn’t appear in the list because my firewall was blocking connections. I temporarily disabled the firewall and re‑ran the installer, and the printer connected successfully.
Quick troubleshooting
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Printer not found: Restart printer and router; check Wi‑Fi band.
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Driver won’t install: Update macOS and re‑download the driver.
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USB not detected: Try another cable or port.
