How to Connect a Canon Pixma MX340 to Wi-Fi

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To connect a Canon Pixma MX340 to Wi-Fi, press the Menu button until Device settings appears, then go to LAN settings > Wireless LAN setup > Easy setup. Pick your network name, type the Wi-Fi password with the number keys, and press OK. The blue Wi-Fi lamp stays lit once the printer is connected.

These steps use the printer’s own control panel, which works the same on every MX340 regardless of the computer you print from. The computer steps cover Windows 11 and Windows 10, plus older Macs that Canon’s driver supports.

The MX340 is a retired product. Canon USA’s PIXMA MX340 support page says driver and content updates are no longer being made, but it still lists the user manual and the Network Setup Troubleshooting guide.

Before You Start

Have these ready before you press any buttons:

• Your Wi-Fi network name (SSID). It’s the name you pick when you join the network on your phone.
• Your Wi-Fi password. Canon’s screens call it the network key. If you never changed it, it’s usually on a sticker on the router. Capital letters matter.
• A 2.4 GHz network. The MX340 only supports 802.11b/g Wi-Fi, which runs on the 2.4 GHz band. Most routers broadcast 2.4 GHz and 5 GHz under one name, and the printer joins the 2.4 GHz side on its own. If your router has 2.4 GHz turned off, turn it back on first.
• WPA2 or older security. The printer supports WPA/WPA2 personal and WEP. It doesn’t support WPA3 or business-style WPA2 Enterprise networks.
• A router, not a direct connection. Canon says the printer needs an access point (your router). It can’t connect straight to a computer over Wi-Fi.
• The printer near the router. Pick an open spot away from microwaves and refrigerators while you set it up.

You don’t need the setup CD or the USB setup cable that came in the box for this method.

How to Connect the MX340 to Wi-Fi With Easy Setup

1. Turn on the printer. Wait until the copy screen appears on the small display.
2. Open Device settings. Press the Menu button repeatedly until Device settings appears on the display, then press OK.

3. Open LAN settings. Use the left and right arrow buttons to find LAN settings, then press OK.
4. Turn on wireless. Select WLAN active/inactive, press OK, choose Wireless LAN active, and press OK. The Wi-Fi lamp on the front of the printer lights blue and the LAN settings screen returns. If the lamp was already lit, wireless is already on and you can skip this step.

5. Start Easy setup. Select Wireless LAN setup and press OK, then select Easy setup and press OK. The printer searches for nearby networks.

6. Choose your network. Press the right arrow until your network name appears, then press OK. Press OK again to confirm it. In an apartment or office, you may see your neighbors’ networks too, so check the name carefully.
7. Type the Wi-Fi password. Use the number and letter keys on the right side of the control panel, the same way you’d type on an old flip phone. Press the * key to switch between numbers (1), capital letters (A) and lowercase letters (a). Press the # key for symbols. To fix a mistake, move the cursor under the wrong character and press Back.

8. Confirm the password. Press OK, check the password the printer shows, and press OK again.
9. Wait for the result. After a few seconds, the screen says the printer is connected. Press OK, then press COPY to return to the normal screen.

If the printer shows Failed to connect to the access point, press OK and enter the password again. Most failures at this step are a mistyped character or the wrong capitalization.

Check that the printer is on the network

Print a LAN details page to confirm the connection. Load a sheet of plain paper in the rear tray first.

1. Press Menu until Device settings appears, then press OK.
2. Select LAN settings and press OK.
3. Select Print LAN details and press OK.

On the printout, Link Status should say Active, and the SSID should match the network your computer uses. The page also shows the printer’s IP address and MAC address. Keep it handy, because you may need the IP address if your computer doesn’t find the printer on its own. Here’s more on finding a printer’s IP address and what the number is for.

Other Ways to Connect the MX340 to Wi-Fi

Use WPS if your router has a WPS button

Wi-Fi Protected Setup (WPS) joins the printer to your network without typing the password. The MX340 supports this method, as shown in Canon’s WPS wireless setup guide.

1. Turn on wireless as in step 4 above.
2. Go to Menu > Device settings > LAN settings > Wireless LAN setup and press OK.
3. Select WPS and press OK, then select Push button method and press OK.
4. Press and hold the WPS button on your router for about 5 seconds, then press OK on the printer within 2 minutes. The Wi-Fi lamp flashes blue while it connects.
5. When Connected appears, press OK, then press COPY.

If a timeout error appears, press OK and start again from step 3, pressing the router button sooner.

If your router uses a PIN instead of a button, choose PIN code method in step 3 and enter the PIN the printer shows into your router’s app or admin page. Canon gives you 10 minutes; if it times out, run setup again and use the new PIN the printer shows. Many newer routers and mesh systems turn WPS off by default. If you can’t find it, use Easy setup instead.

Use the setup CD and cable

The MX340’s original Getting Started guide also describes a setup that uses the included USB “Wireless LAN setup cable” with Canon’s installer CD. Most computers no longer have a disc drive, and the CD software predates Windows 11, so the control panel method above is the easier route today.

Add the MX340 to a Computer After It’s on Wi-Fi

Getting the printer on Wi-Fi is the first half of the job. Each computer that prints still needs to add it, and it has to be on the same network as the printer, not a guest network.

Windows 11 or Windows 10

These steps follow Microsoft’s add or install a printer in Windows guide. Windows 10 reached end of support on October 14, 2025, so it no longer gets security updates, but the printer steps are the same.

1. Go to Start > Settings > Bluetooth & devices > Printers & scanners.
2. Next to Add a printer or scanner, select Add device, and wait a minute for the list to fill in.
3. Select Add device next to Canon MX340 series and wait for Windows to finish installing it.

If the printer doesn’t appear, or it installs but won’t print, install Canon’s MX340 series MP Driver (version 1.06). Canon USA’s support page no longer lists downloads, but Canon’s regional sites still host them, such as Canon Australia’s MX340 page.

Choose Windows 10 (64-bit), because only utility software, not a printer driver, is offered under Windows 11. Sign in with an administrator account, close other apps, and when the installer asks how the printer is connected, choose the network option and pick the MX340 from the list. If your security software warns that Canon software wants network access, allow it. If you need to add the printer by IP address, the steps for adding a printer in Windows 11 or 10 cover the The printer that I want isn’t listed option.

The MP Driver also installs the scanner driver, so once the printer is on Wi-Fi you can scan with the Canon Pixma MX340 from your computer. To send scans to a computer from the printer’s own buttons, see setting up network scanning on the MX340.

Mac, iPhone and iPad

The MX340 doesn’t support AirPrint, so iPhones and iPads can’t print to it directly. On a Mac, Canon’s newest MX340 printer driver is listed for OS X El Capitan (10.11). Canon’s Australian download page has some MX340 utilities, such as IJ Network Tool, for current macOS, but no printer driver. If you have an older Mac that Canon’s driver supports, install it, then add the printer in System Preferences > Printers & Scanners.

Newer Canon printers that support AirPrint need no driver. Here’s how to add a Canon wireless printer to a Mac.

Troubleshooting MX340 Wi-Fi Problems

Your network isn’t in the list. The router may be hiding its network name, which Canon calls stealth mode. Turn on SSID broadcast in the router settings during setup. Also check that the 2.4 GHz band is on and accepts older 802.11b/g devices, and move the printer closer to the router.

The password keeps failing. Retype it slowly and watch for the number 0 versus the letter O and lowercase l versus the number 1. A WPA or WPA2 password must be 8 to 63 characters. If you recently changed your Wi-Fi password, the printer still has the old one, so run Easy setup again.

It won’t join a new router. The MX340 is much older than WPA3 security. If the router is set to WPA3 only, switch it to WPA2/WPA3 mixed mode (some routers call it transition mode) or WPA2 Personal with AES, then try again. Don’t switch the network to open (no password) to make the printer connect, because unprotected networks can expose your data.

The Wi-Fi lamp is off. Wireless is turned off. Go to Menu > Device settings > LAN settings > WLAN active/inactive and choose Wireless LAN active.

The LAN details page shows no IPv4 address. Canon’s support staff suggest going to LAN settings > Other settings > IPv4/IPv6 setting and turning IPv6 off. Then turn off the printer, restart the router, wait about 15 seconds, turn the printer back on, and print the LAN details again.

The printer connects, but the computer can’t find it. Make sure both are on the same network name. Canon also lists router features that can block the printer: MAC address filtering, IP address filtering, and a “privacy separator” or client isolation setting. Allow the printer’s MAC address or turn those off. A firewall on the computer can also block Canon’s installer, so allow it when your security software asks. If Windows shows the printer as offline, here’s how to get a printer back online in Windows.

Nothing works and you want a clean start. Go to Menu > Device settings > LAN settings > Reset LAN settings, press OK, and confirm. This turns wireless off and erases the saved network and password, so run the Easy setup steps again afterward.

Frequently Asked Questions