Repair Canon NP6621 Printer Error Codes Canon Servie Tool – Printer model: Canon NP6621 – Error codes on Canon NP6621 model and its description: – Canon NP6621 printer Error Codes and quick guide to troubleshooting: Code: E000 Description: Fuser problem. Low temperature. Lamp, thermal switch, AC driver Code: E001 Description: Fuser problem. High temperature. Triac, […]