Security: Invalid user. (RC800 Series)

Countermeasure	Error Solution
Contact the administrator to register the user.	Stop task

Applicable equipment

Source: Fault JSON · EPSON_RC800_fault_codes_zh_en.json · SHA-256 0be0d785ec2146f8862c8243c81d61bb494845d3df16aeb94473d4601bee25dc · 7700

Brand	EPSON
Updated	2026-10-27

7700

Countermeasure	Error Solution
Contact the administrator to register the user.	Stop task

Applicable equipment

Source: Fault JSON · EPSON_RC800_fault_codes_zh_en.json · SHA-256 0be0d785ec2146f8862c8243c81d61bb494845d3df16aeb94473d4601bee25dc · 7700

Brand	EPSON
Updated	2026-10-27