How to Fix CANON Support Code 1403

The Support Code 1403 on CANON printers indicates: Printhead temperature sensor error.

Step 1: Perform a Hard Reset

Before disassembling any hardware, force the printer to clear its volatile memory.

1. Turn the printer on.
2. Disconnect the power cord from the rear.
3. Wait 60 seconds.
4. Reconnect and power on.

Step 2: Inspect Hardware Components

1. Open the access door.
2. Verify all cartridges or toners are seated securely.
3. Check for any jammed paper or foreign objects in the carriage path.

Step 3: Specific Component Verification

For Support Code 1403, the issue is localized to the printhead.

• Carefully inspect the electrical contacts and clean them with a lint-free cloth lightly dampened with distilled water.
• If the component has permanently failed, consider a replacement part.