# [phone] How to Fix ‘Printer Not Found’ on Mac After Software Update

Mac users frequently encounter frustrating printer issues after a macOS software update. One of the most common problems is the "Printer Not Found" error, even when the printer was working fine before the update. If you're seeing this message, don’t panic. This comprehensive 3000-word guide will help you troubleshoot and fix the issue so you can get your printer back online quickly and efficiently.

## **Why Does This Happen After a macOS Update?**

macOS updates often bring changes to system files, security permissions, printer drivers, and network configurations. While these updates improve performance and patch vulnerabilities, they can also disrupt the connection between your Mac and your printer. Common causes include:

* Outdated or incompatible printer drivers
* Reset network settings
* Missing printer configuration files
* Security permission changes
* USB recognition failure
* AirPrint compatibility issues

Let’s walk through step-by-step instructions to diagnose and resolve the “Printer Not Found” error.

## **Step 1: Basic Checks**

Before diving into deeper fixes, ensure the basics are covered.

### 1.1 Check Printer Power and Connection

* Ensure the printer is powered ON.
* If it’s connected via USB, unplug and replug the cable.
* For wireless printers, make sure they’re connected to the correct Wi-Fi network.
* Restart both your Mac and printer.

### 1.2 Check for Error Lights

Look at your printer’s display or LED panel for warning lights or error codes. These could indicate paper jams, low ink/toner, or network errors.

## **Step 2: Confirm Printer Compatibility**

After a macOS update, certain older printers may no longer be compatible. Visit the manufacturer’s website and check if your printer model is supported for your macOS version (e.g., macOS Sonoma, Ventura, Monterey, etc.).

**Helpful links:**

* [HP Printer Drivers for macOS](https://support.hp.com)
* [Canon Printer Compatibility](https://www.usa.canon.com)
* [Epson Support](https://www.epson.com)
* [Brother Support](https://www.brother-usa.com)

If the printer is **no longer supported**, you may need to use **AirPrint** (if available) or consider replacing the printer.

## **Step 3: Reset Printing System**

Resetting the printing system clears all printers and settings, helping eliminate conflicts.

### Steps:

1. Open **System Settings** (macOS Ventura and newer) or **System Preferences** (older macOS).
2. Go to **Printers & Scanners**.
3. Right-click (or Control-click) in the printer list on the left.
4. Choose **Reset printing system**.
5. Confirm when prompted.

Then, re-add your printer manually.

## **Step 4: Reinstall Printer Drivers**

After a software update, your current drivers might be outdated or corrupted.

### 4.1 Delete Old Drivers:

1. Go to `System Settings > Printers & Scanners`.
2. Remove the existing printer.
3. Go to `/Library/Printers/` and delete the folder related to your printer brand (e.g., HP, Epson).

### 4.2 Download Latest Drivers:

* Visit your printer manufacturer’s official website.
* Download and install the latest drivers for your macOS version.
* Restart your Mac.

### 4.3 Re-add Printer:

* Open **Printers & Scanners**.
* Click the **+** sign to add the printer.
* Select your printer from the list and follow prompts.

## **Step 5: Use AirPrint as an Alternative**

Many modern printers support **AirPrint**, Apple’s native printing technology that requires no drivers.

### Steps:

1. Ensure the printer and Mac are connected to the same Wi-Fi.
2. Go to **System Settings > Printers & Scanners**.
3. Click **+**, select your printer, and look for “AirPrint” in the **Use** section.
4. Click **Add**.

If AirPrint is available and enabled on your printer, this often resolves most driver-related issues.

## **Step 6: Check Network and Sharing Settings**

If your printer is networked (Wi-Fi or Ethernet), connectivity may be disrupted.

### 6.1 Confirm Network Status

* Print a network configuration page from the printer.
* Ensure it has a valid IP address.
* Check that it’s on the same subnet as your Mac.

### 6.2 Ping the Printer

1. Open **Terminal**.
2. Type `ping [printer IP address]` (e.g., `ping 192.168.1.45`).
3. If it fails, your Mac can’t see the printer—check your router, firewall, and printer connection.

### 6.3 Enable Printer Sharing

* On your Mac, go to **System Settings > General > Sharing**.
* Enable **Printer Sharing** if you're trying to share the printer with other devices.

## **Step 7: Fix USB Printer Recognition**

USB-connected printers may stop working due to port conflicts or driver errors.

### 7.1 Try a Different USB Port and Cable

* Use a different USB port or cable.
* Avoid USB hubs; plug directly into the Mac.

### 7.2 Reset SMC and NVRAM (Intel Macs Only)

Resetting these can fix USB issues.

**SMC Reset:**

1. Shut down Mac.
2. Hold Shift + Control + Option + Power for 10 seconds.
3. Release and turn Mac back on.

**NVRAM Reset:**

1. Restart Mac.
2. Hold Option + Command + P + R for 20 seconds.

## **Step 8: Delete Printer Preferences and Cache**

Corrupted preferences or spool files can cause Mac to not recognize your printer.

### Delete the Following Files:

1. Open Finder.
2. Go to `~/Library/Preferences/` and delete:

* `com.apple.print.PrintCenter.plist`
* `com.apple.print.custompresets.plist`
3. Go to `/private/var/spool/cups/` and delete contents (requires admin).
4. Restart your Mac.

## **Step 9: Reset CUPS (Common UNIX Printing System)**

macOS uses CUPS to manage print jobs. Resetting CUPS can resolve hidden issues.

### Steps:

1. Open Safari or any browser.
2. Visit: `http://localhost:631` (Enable via Terminal if needed: `cupsctl WebInterface=yes`)
3. Click **Printers** and delete problem printers.
4. Re-add the printer via System Settings.

## **Step 10: Update macOS and Printer Firmware**

### 10.1 macOS Updates

* Go to **System Settings > General > Software Update**.
* Install any pending updates.

### 10.2 Firmware Update

* Visit the manufacturer’s website to check for printer firmware updates.
* Follow instructions carefully. Some updates can be done via USB or Wi-Fi.

## **Step 11: Use IP Printing**

If Bonjour or auto-discovery fails, manually connect using IP address.

### Steps:

1. Print network config from printer.
2. Find printer IP (e.g., 192.168.1.99).
3. Go to **System Settings > Printers & Scanners**.
4. Click **+** > **IP** tab.
5. Enter:

* Address: Printer’s IP
* Protocol: Line Printer Daemon (LPD) or IPP
* Name: Any friendly name
* Use: Choose driver or AirPrint

Click **Add**.

## **Step 12: Try Safe Mode**

Booting in Safe Mode can bypass third-party conflicts.

### Steps:

1. Shut down Mac.
2. Turn it on and immediately hold **Shift**.
3. Release when login window appears.
4. Add your printer in Safe Mode.

Then restart normally and check if the issue is resolved.

## **Step 13: Contact Manufacturer Support**

If all else fails, contact your printer’s support:

* **HP Support**: [https://support.hp.com](https://support.hp.com)
* **Epson**: [https://www.epson.com/Support](https://www.epson.com/Support)
* **Canon**: [https://www.usa.canon.com/support](https://www.usa.canon.com/support)
* **Brother**: [https://www.brother-usa.com](https://www.brother-usa.com)

## **Step 14: Call Expert Mac Printer Support at [phone] (USA)**

Still stuck? Call toll-free **[phone]** to speak to a certified printer technician for real-time support. Our experts help with:

* Driver installation
* USB/wireless setup
* Network IP printing
* Compatibility issues post-update
* macOS-specific printer configuration

Get your printer back online within minutes!

## **Pro Tips to Avoid ‘Printer Not Found’ in the Future**

1. **Delay Software Updates**
Wait a few weeks before installing new macOS updates to allow vendors time to release compatible drivers.

2. **Keep Printer Firmware Updated**
Regularly check for firmware updates on your printer manufacturer’s site.

3. **Use AirPrint Models**
If buying a new printer, ensure it supports **AirPrint** to avoid driver issues.

4. **Use Static IP for Printers**
Prevent IP address conflicts by assigning a static IP from your router settings.

5. **Backup Printer Settings**
Use Time Machine to back up your system before making changes.

## **Conclusion**

The “Printer Not Found” error on Mac after a software update can be frustrating, but it’s usually fixable with systematic troubleshooting. By checking connections, updating drivers, resetting the print system, and configuring your printer manually via IP or AirPrint, you can restore full functionality. If you need fast help, don’t hesitate to call our USA-based support team at **[phone]** for expert guidance.

**Still having issues? Call toll-free now: [phone] (USA Printer Support)**
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