Sharp MXM503N Printer with list Error Codes and Epson Et-4500 Adjustment Program – Printer model: Sharp MXM503N – Error codes on Sharp MXM503N with details instruction fixing: Code: A0-01 Description: PCU PWB ROM error Causes: The firmware version-up is not completed properly by interruption of the power during the version-up operation, etc. ROM trouble. Troubleshooting […]