When using the Equitrac Office / Express 5.6, the initialization of the Konica-Minolta Embedded device fails with message "Response is empty. Please check the OpenAPI configuration." The MFP has OpenAPI enabled, and a self-signed MD5 security certificate.
MD5 is not secure, so the Equitrac product will no longer integrate with Open API devices which rely on MD5 certificate for security.
Install and use a SHA-256 or SHA-1 security certificate on the Konica-Minolta MFP. Refer to Konica-Minolta MFP instructions to create or import security certificates.