Canon Color imageCLASS MF665Cdw Stopped Printing Completely — How to Fix

Why Your Canon MF665Cdw Might Suddenly Stop Printing

Imagine sitting down to print something important, only to find your Canon Color imageCLASS MF665Cdw refusing to respond. Maybe the printer says it’s “offline,” maybe it starts a print job and stops halfway, or perhaps nothing happens at all.

These problems are more common than most people realize. Often, they occur because your computer and printer can no longer “speak the same language.” Your computer uses a small piece of internal software to recognize your printer and send it the right commands. When that software becomes outdated, gets removed accidentally, or becomes damaged, the printer stops communicating properly.

That’s when issues like these start appearing:

• The printer won’t show up in your print list.
• Your computer keeps saying the printer is “not connected.”
• Print jobs get stuck or disappear.
• Colors or layouts print incorrectly.

The good news is that these problems can be fixed quickly, and you don’t need to be a tech expert to do it. Below, you’ll learn both the fastest automatic fix and two easy manual methods to get your Canon MF665Cdw printing again.

The Quickest and Easiest Fix: Use DriverAssist

The simplest way to bring your Canon MF665Cdw back to life is by using DriverAssist, a trusted tool designed to automatically repair the connection between your computer and printer.

DriverAssist scans your system, identifies what’s missing or outdated, and installs the correct software your printer needs — all automatically. There’s no need to browse websites, choose from confusing file names, or guess what version you need.

Once it’s done, your printer should be ready to use again, just like when it was new.

Here’s how to do it:

1. Download DriverAssist from this safe link.
2. Open the downloaded file and follow the quick installation steps.
3. Run the program. It will automatically detect your Canon MF665Cdw and set up everything needed.
4. Restart your computer, then print a test page.

Most users find their printer starts working again within minutes using this method.

Manual Ways to Fix the Canon MF665Cdw Printing Issue

If you prefer doing things yourself, there are two reliable manual methods to restore communication between your printer and computer:

1. Downloading the latest software from Canon’s official website.
2. Using a built-in Windows tool called Device Manager.

Both approaches can work, but they require a bit more time and attention than the automatic option.

Method 1: Get the Latest Software from Canon’s Website

Canon regularly releases updated software that improves compatibility with Windows and fixes printing bugs. Here’s how to safely download and install it:

Step 1: Visit Canon’s Official Support Page

1. Open your internet browser (such as Chrome, Edge, or Firefox).
2. Search for “Canon Color imageCLASS MF665Cdw support.”
3. Click the official Canon website link.

Step 2: Choose Your Printer Model
Make sure the page shows your exact model name, Canon Color imageCLASS MF665Cdw, to avoid downloading the wrong file.

Step 3: Pick Your Windows Version
Canon’s site usually detects your version of Windows automatically. If not, you can select it manually (for example, Windows 10 64-bit or Windows 11).

Step 4: Download the File
Scroll to the section titled “Drivers & Downloads” or “Software.” Click Download beside the most recent file for your printer.

Step 5: Install the Software

1. After the download finishes, open the file.
2. Follow the instructions shown on your screen.
3. Once the setup completes, restart your computer.

Step 6: Check if It Worked
Turn on your Canon MF665Cdw, print a test page, and confirm that everything is working correctly.

Method 2: Use the Windows Device Manager Tool

Windows includes a built-in feature that can automatically find and install missing printer software. This is especially useful if your printer stopped responding after a Windows update.

Step 1: Open Device Manager

1. Click the Start button (the Windows logo).
2. Type Device Manager into the search box and open it.

Step 2: Locate Your Printer

1. Find and expand the section labeled Printers or Print queues.
2. Right-click your Canon Color imageCLASS MF665Cdw from the list.
3. Choose Update driver.

Step 3: Let Windows Search Automatically
Select Search automatically for drivers.
Windows will look for the newest version available online and install it if found.

Step 4: Restart and Test
After the installation finishes, restart your computer, then try printing a test document.

Still Not Working? Here’s What Else to Check

If your Canon MF665Cdw still refuses to print, try these simple checks:

• Reconnect the USB cable or Wi-Fi. If you’re using Wi-Fi, ensure both the printer and your computer are connected to the same network.
• Restart both devices. Sometimes, a simple restart helps your computer and printer reconnect.
• Remove and reinstall the printer. Go to your computer’s Settings → Bluetooth & devices → Printers & scanners, select your Canon printer, and choose Remove device. Then, add it again.
• Run DriverAssist again. The tool can fix missing components that manual steps might overlook.

Why These Fixes Work

When your printer stops printing, the issue is rarely with the printer itself. Most of the time, your computer’s system files that handle printer communication have become outdated, corrupted, or mismatched with your printer’s version.

By updating or reinstalling the correct software, you’re essentially giving your computer new instructions on how to “speak” to the printer again. Once that’s done, the two devices can communicate normally, and printing resumes like before.

Helpful Tips to Prevent Future Printing Issues

• Restart your printer and computer once a week to refresh connections.
• Keep your printer plugged into the same USB port or Wi-Fi network whenever possible.
• Avoid using random third-party update tools unless they’re verified and safe.
• Check Canon’s support page every few months for new software releases.
• If printing problems return, run DriverAssist again to automatically restore your setup.

Conclusion

Your Canon Color imageCLASS MF665Cdw may stop printing for many reasons, but most of them are simple to fix once you understand what’s happening. The problem usually comes down to your computer losing proper communication with the printer due to missing or outdated files.

You can repair this easily using DriverAssist, which automatically restores your printer connection in minutes. For users who prefer doing things manually, updating the software from Canon’s official website or through Windows Device Manager can also get the printer working again.

By following these steps, you can quickly restore your Canon MF665Cdw to normal operation and avoid similar issues in the future.