OKI MC573dn error 801: Scanner and ADF failure
The OKI MC573dn error 801 indicates a technical failure within the scanner sub-assembly. The device cannot complete its startup calibration or encounters a mechanical block in the Automatic Document Feeder (ADF). This error effectively disables all scanning and copying functions.
Common causes
- 1Mechanical obstacle impeding scanner carriage motion.
- 2Debris or small paper remnants stuck in the ADF path.
- 3Failed initialization of the optical scan sensor.
- 4Damaged timing belt in the scanner motor.
Solutions
Diagnóstico rápido
If you hear persistent grinding noises, the scanner carriage is likely physically obstructed. Inspect the ADF feed entry for tiny scraps of paper or staples that may be preventing the sensor from clearing its startup cycle.Solución paso a paso
- Scanner lock: Check if the scanner transport lock is set to the 'unlocked' position.
- Restart calibration: Cycle power on the unit; observe the carriage movement across the glass for calibration.
- Clear glass area: Wipe the scanner glass with a lint-free cloth and clear the ADF slot of any foreign debris.
Prevención y mantenimiento
Avoid placing heavy stacks directly on the scanner lid. Regular wiping of the glass helps prevent debris from affecting the scan quality and optical sensors. Ensure the ADF is fully closed after loading documents.Cuándo llamar a un técnico
If the error 801 persists despite cleaning and power-cycling, the motor or the internal timing belt of the scanner likely requires professional replacement.Ficha técnica del equipo
- Technology: Digital Color LED
- Print speed: 30 ppm
- Scanner: 1200x1200 dpi optical resolution
- Supplies: Independent scanner unit
- Best for: Office digitalization
- Drivers / official firmware
Steps to follow
- 1
Scanner lock
Check if the scanner transport lock is set to the 'unlocked' position.
- 2
Restart calibration
Cycle power on the unit; observe the carriage movement across the glass for calibration.
- 3
Clear glass area
Wipe the scanner glass with a lint-free cloth and clear the ADF slot of any foreign debris.
Frequently asked questions
Error 801 indicates the scanner motor is stuck or failing to calibrate, often caused by a physical obstruction in the carriage path.
Grinding, clicking, or rattling sounds coming from the scanner unit suggest the internal belt or motor has failed.
No, the scanning mechanism is physically independent of the toner system. This is purely a hardware issue related to the scanner assembly.
Cleaning the ADF rollers and scanner glass monthly is recommended to ensure consistent feeding and avoid sensor confusion.