Device Control Engine
The Device Control Engine (DCE) provides communication with copy and fax devices and with multi-function devices that provide fax and scan features. You must install specific embedded devices or terminals to enable communication with these devices. See Embedded Devices and Control Terminals for details.
DCE communicates with CAS to verify user credentials, and forwards the copy and fax information generated by these devices for tracking in the accounting database.
In a basic DCE workflow a user requests access to a multi-function device via a control terminal or the device itself. The request is handled by DCE, which then forwards a user validation request to CAS. CAS checks its database and either validates the request, or denies it. After the user completes their copy, fax or scan, the job attributes are forwarded to CAS for tracking.
Although DCE is a core component, it is not required in all deployments. If you intend to track printing from workstations only, and do not need to track copy, scan, or fax jobs, you do not need to install the DCE component. Instead, you need the DRE component only.