Ricoh SP 8400DN Field Service Manual page 1763

2.Mechanism
installed only on machines sold in specific regions, and custom-made applications.
On an MFP, applications such as Simple UI applications (Quick Copy, Quick Fax, and Quick Scanner) and Scan
to Me are installed.
Communication specifications
The Smart Operation Panel and the GW controller are connected by a USB 2.0 cable. They communicate with
each other via the Android OS on the Smart Operation Panel, using protocols called "OCS Library" and "Flair-
API (System/Application)".
System block diagram
Overview of Components
Communication
module/signal name
OCS Library
18
OSC stands for Operating Control Service. It is a module that controls the control
panel. The set of signals used by this module to control the control panel are called
the OCS Library.
It is used during communication between the Legacy UI (system) module on the
Smart Operation Panel and the GW module for the following processes.
Details