Canon Printer Error E67 — What It Means & How to Fix It

What Does This Error Mean?

Error E67 on a Canon printer is a USB connection error. The printer cannot establish a proper communication link with the connected computer via USB. This can be caused by a bad cable, a faulty USB port, or a driver problem on the computer.

Affected Models

Canon PIXMA MG3600 Series
Canon PIXMA MG5700 Series
Canon PIXMA TS5100 Series
Canon PIXMA MX920 Series
Canon PIXMA TR4500 Series

Common Causes

The USB cable is damaged, frayed, or of poor quality
The USB port on the printer or computer is dirty or damaged
The printer driver on the computer is corrupted or outdated
A USB hub is being used between the printer and computer, causing communication issues
The computer's USB power management settings are turning off the USB port to save energy

How to Fix It

Unplug the USB cable from both the printer and the computer. Wait 30 seconds, then plug it back in firmly at both ends.

USB connections can come slightly loose over time, especially if the cable is frequently moved or bent.
Try a different USB cable. Use a short, high-quality USB cable — preferably under 3 metres (10 feet) in length.

Long or low-quality USB cables cause communication errors more often than you might expect. This is one of the most common and easily overlooked causes of E67.
Connect the USB cable directly to the computer's USB port — not through a USB hub or dock.

USB hubs can cause timing and power issues that prevent printers from connecting reliably. Always try a direct connection first.
Uninstall the Canon printer driver from your computer. Download the latest driver from Canon's official website and reinstall it.

Use the full driver and software package, not just the basic driver. The full package includes utilities that help diagnose connection issues.
On Windows, go to Device Manager and check if the printer appears with a warning icon. If so, right-click it and select 'Update driver' or 'Uninstall device' and then reconnect the printer.

On Mac, go to System Settings > Printers & Scanners, delete the printer, and add it again after reconnecting the cable.

When to Call a Professional

If multiple cables and ports have been tried and the error persists, the printer's USB port may be physically damaged. A repair technician can replace a damaged USB port on the printer's main board. For lower-cost printers, a wireless or network connection may be a better alternative to USB.

Frequently Asked Questions

Should I use USB or Wi-Fi for my Canon printer?

Wi-Fi is generally more convenient for home use — there are no cables to manage and multiple devices can print. USB is more reliable for troubleshooting because there are fewer variables that can go wrong. If you keep having E67 errors with USB, switching to Wi-Fi is a practical solution.

Why does E67 only happen sometimes and not every time?

Intermittent E67 errors are usually caused by a marginal connection — a slightly loose cable, a worn port, or an underpowered USB hub. The connection works most of the time but fails under certain conditions like when the printer is warming up or when a large print job starts. Replacing the cable and using a direct USB port connection usually solves intermittent cases.

What is USB power management and how do I disable it?

Windows has a feature that turns off USB ports when they are idle to save battery power. This can cause printers to disconnect unexpectedly. To disable it: go to Device Manager, expand USB Serial Bus Controllers, right-click each USB Root Hub, select Properties, go to Power Management, and uncheck 'Allow the computer to turn off this device to save power'.