i keep getting error e813-0000 on the screen and the printer just stops, what does that mean?

Diagnosis

The E813-0000 error on the Canon imageCLASS MF453dw is a critical hardware failure specifically related to the scanner unit's initialization process. This error triggers when the printer's logic board sends a signal to the scanner carriage to move to its "home" position during the startup sequence, but the carriage fails to reach that position within the allotted time or the optical sensor cannot confirm its location. In most cases, this is caused by a physical obstruction or a mechanical failure of the drive belt. If the scanner glass has been bumped or if a foreign object has fallen into the Automatic Document Feeder (ADF) gap, the carriage may be physically blocked. Alternatively, the lubricant on the scanner rail may have dried out or collected dust, increasing friction to the point where the small stepper motor cannot overcome the resistance. You can confirm this by listening closely during boot-up; if you hear a loud grinding noise or a repetitive "clunking" sound followed by the error, the carriage is physically stuck. If the printer is silent and the error appears immediately, it is likely an electronic failure of the CIS (Contact Image Sensor) unit.

How to Fix It

To resolve a soft-lock or a minor mechanical hitch, follow this precise hard-reset and inspection sequence:

1. Power down the device using the main power switch located on the side/front of the unit.
2. Disconnect the AC power cable directly from the wall outlet and the back of the printer. This is crucial to drain the capacitors on the main controller board.
3. Wait exactly 180 seconds. While unplugged, gently lift the scanner lid and inspect the glass for any debris, staples, or paper fragments that may have slipped into the edges of the flatbed.
4. Carefully check the ADF (Automatic Document Feeder) rollers. Open the ADF cover and ensure no small scraps of paper are jammed in the feed path, as a jam here can sometimes put pressure on the scanner assembly.
5. Plug the power cable back into the wall first, then into the printer.
6. Switch the power on and immediately listen for the scanner carriage. It should glide smoothly from one side to the other. If the error clears, perform a "Test Copy" from the menu to ensure the scanner is fully operational.

If That Didn't Work

• Manual Carriage Release: With the power off, carefully lift the scanner assembly. If you can see the scanner head, check if it is skewed. Sometimes a very gentle nudge (only if the carriage is visibly off-track) can help it find its home position, but be cautious not to force the gear assembly.
• Firmware Update: Connect the printer to your network and navigate to Menu > Management Settings > Update Firmware. Occasionally, Canon releases patches that adjust the timeout threshold for the scanner initialization, which can clear intermittent E813 errors.
• Clean the Scanner Rail: If you are comfortable opening the chassis, use a lint-free cloth and a tiny amount of isopropyl alcohol to clean the silver guide rail that the scanner head slides on. Remove old, gummy grease and apply a microscopic amount of white lithium grease to reduce friction.
• Replace the CIS Unit: If the error persists after a hard reset and cleaning, the Contact Image Sensor (CIS) or the scanner motor has failed electrically. This requires replacing the entire scanner assembly unit, as the motor and sensor are integrated.

Heads Up

• Avoid Force: Never attempt to force the scanner carriage to move manually while the printer is powered on, as this can strip the plastic gears of the drive motor.
• Power Stability: The MF453dw is sensitive to voltage drops. If this error recurs, plug the printer directly into a wall outlet rather than a low-quality surge protector or extension cord.
• ADF Maintenance: Regularly clean the ADF rollers with a damp, lint-free cloth to prevent paper jams that can lead to mechanical stress on the scanner housing.
• Glass Care: Avoid using ammonia-based glass cleaners on the scanner bed; use a microfiber cloth and a small amount of distilled water to prevent residue buildup that can confuse the optical sensors.