Canon Printer Error E69 — Internal Hardware Error

What Does This Error Mean?

Error E69 means the printer detected an internal hardware fault on startup — often a failed write to the printer's internal EEPROM memory or a critical sensor error. A factory reset (service mode reset) can sometimes clear it. If the reset does not help, professional service is usually needed.

Affected Models

Canon PIXMA MG5720
Canon PIXMA MG5750
Canon PIXMA MG6820
Canon PIXMA TS8020
Canon PIXMA TR8520

Common Causes

A power interruption while the printer was writing settings to internal EEPROM memory
The EEPROM chip has reached the end of its write-cycle life after many years of use
A hardware sensor (encoder, motor, or position sensor) has failed and triggered a startup check fault
A firmware update was interrupted mid-flash, leaving the printer in an inconsistent state
The printer's main board has a hardware fault causing a false or real internal error

How to Fix It

Turn the printer off and unplug it from the wall. Wait 60 seconds.

A full power-down resets the printer's volatile memory. Sometimes E69 is a one-off startup glitch.
Plug in and power on. If the error returns, attempt a service mode factory reset.

Service mode reset procedure varies by model. For many PIXMA models: hold the Stop/Reset button for 5 seconds while the printer is on, then use the Canon Service Tool to issue a factory reset.
Download and run the Canon Service Tool for your printer model to attempt a full factory reset.

Search for 'Canon [your model] service tool' on a reputable printer support site. The reset wipes all settings back to factory defaults.
If a firmware update was interrupted, attempt to re-flash the firmware using Canon's official firmware utility.

Connect via USB, not Wi-Fi, for firmware updates to avoid another interrupted flash.
If none of the above steps work, contact Canon support or take the printer to a Canon service center.

E69 from a failed main board or EEPROM chip requires hardware-level repair.

When to Call a Professional

E69 is a serious internal error that often requires professional attention. A service mode reset is worth trying first, but hardware faults on the main board usually need a Canon technician. For older or lower-cost models, consider whether repair cost is worthwhile compared to a replacement.

Frequently Asked Questions

Can I fix E69 myself without sending the printer for service?

Sometimes — a factory reset via the Canon Service Tool resolves E69 caused by corrupted settings or a failed firmware update. However, if the EEPROM chip or main board has physically failed, a self-repair is not practical for most users.

My printer is only a year old — why is it showing E69?

E69 can occur on newer printers if a firmware update was interrupted or if there was a power surge. Try re-flashing the firmware first before assuming a hardware fault.

Is it worth repairing a printer with E69?

It depends on the printer's age and original cost. For a high-end Canon PIXMA (TS9120, MG7720), repair is usually worthwhile. For an entry-level printer originally costing under $80, the repair cost may exceed the replacement cost.