Sometimes, after updating Windows on your PC, either automatic update or manual update, your OKI printer may stop working properly. If you have an OKI printer and it's not responding, showing strange error messages or codes, or missing from the list of connected devices, the update might have caused the problem. Here’s how you can fix it using simple steps.

Step 1: Restart Your Computer and Printer

You can perform a restart as the primary step to eliminate the printer issue after a Windows update. Check how to do it: 

Restart the Computer:

1. First of all, click the Windows Start button on your computer’s taskbar. 
2. Then, click the power button and select the Restart button (a circular arrow sign at the end of the menu). 

Let the computer restart completely. 

Restart the Printer: 

1. First of all, press the power button to turn it off, and ensure that the lights are turned off. 
2. Then, remove its power cable from the power outlet and wait for one minute. 
3. Now, reconnect the power cable to the power outlet and press the power button to turn on the printer. 

Step 2: Run the Troubleshooter on a Windows Computer

There is a troubleshooter feature on Windows computers that will fix various issues, including printer issues, after a Windows update. Hence, you can use it to fix the issue in your printer. 

1. First of all, go to the Windows Start button on your computer’s taskbar. 
2. Then, search for the Settings option and open it. 
3. Search for the Troubleshooting Settings in the left search bar under the Settings. 
4. Now, select the Other Troubleshooters option from the right side of the screen. 
5. On the next screen, click the Run option next to the Printer. 
6. Next, let the troubleshooter run on the computer. 

Your computer will resolve the error automatically when you click the Run option. Once the issue is resolved, you can try printing again with your printer. If this issue persists, you should move on to the next step. 

Step 3: Reinstall the Printer Drivers

Printer drivers are a crucial part of a printer that helps the printer and computer communicate with each other. If there is a problem with these drivers, you should uninstall and reinstall them on the computer. 

Uninstall Printer Drivers: 

1. To start, click the Windows Start icon and search for the Settings option. 
2. Then, click the Devices option, and then select Printers & Scanners. 
3. Now, scroll down until you see the Related Settings. 
4. Select the Print Server Properties option, and choose the Drivers option from the top menu. 
5. Now, select a printer driver from the list of installed programs and click the Remove option at the bottom. 

Reinstall Printer Drivers: 

Step 1: Download the Drivers 

1. In the first step, visit the oki.com website on an internet browser. 
2. Then, click the Support option at the top of the page. 
3. Click the Drivers & Utilities option under the Downloads section. 
4. Then, select your printer type and select your printer model on the screen. 
5. Now, choose your operating system on the next page using the drop-down menu. 
6. Scroll down and download the printer driver from there. 
7. Let it save under your computer’s Downloads folder. 

Step 2: Install the Drivers 

1. Next, go to that folder and double-click the .exe file. 
2. Then, open it and allow the OKI printer driver installation wizard. 

Now, let the drivers install on your computer. 

That’s how you will download and install the printer drivers on your computer. 

A Windows update can often lead to printer issues, such as the printer not printing or responding, or going offline. This happens because the new version of Windows is not compatible with the printer, and because of that, it stops printing or responding.