Sharp AR6020D Printer with list Error Codes and Epson SP-1390 Adjustment Program – Printer model: Sharp AR6020D – Error codes on Sharp AR6020D with details instruction fixing: Code: CH-Blink Description: Developing cartridge not installed Causes: Developing unit disconnection MCU PWB abnormality Toner cartridge is not installed. Troubleshooting Guides: Check installation of the developing unit. Replace […]