Fix Kyocera Error C4000: Laser Scanner Error
critical Severity: critical
If your Kyocera printer is displaying error C4000, do not worry – this is a known issue with a proven fix. This error typically indicates laser scanner error that can usually be resolved without a service call. Follow the steps below to clear this error.
What Causes Kyocera Error C4000?
This error can be triggered by one or more of the following issues:
- Laser scanner motor failure
- Laser diode malfunction
- Scanner polygon mirror contaminated
- LSU cable disconnection
How to Fix Kyocera Error C4000
Follow these steps in order. After each step, check whether the error has cleared before proceeding to the next one.
- Step 1: Power cycle the printer
- Step 2: If the error persists, the laser scanner unit has likely failed
- Step 3: This requires professional service for replacement
- Step 4: Contact Kyocera authorized service
Affected Kyocera Printer Models
The following Kyocera printer models are known to display error C4000:
Related Kyocera Error Codes
If you are troubleshooting error C4000, these related error codes may also be relevant:
- C6000 – Drum Motor Error
- C6400 – Fuser Motor Error
- C7990 – Waste Toner Full
- CF040 – Color Registration Error
- J0511 – Paper Jam – Tray 1
Frequently Asked Questions
What is Kyocera error C4000?
Error C4000 indicates a failure in the laser scanner unit (LSU). The laser that writes the image onto the drum is not functioning.
Is C4000 repairable?
The LSU is a sealed component requiring professional replacement. Power cycling may clear a temporary error, but persistent C4000 requires service.
Error still not resolved?
If the steps above did not fix the error, the issue may require professional service. Contact the manufacturer support line or visit an authorized service center near you.