Operating instructions

CRP-C0266-01
21
5. Architectural Information
This chapter explains the purpose and the relation on a scope of the TOE and the main
component.
5.1 TOE boundary and component
The TOE consists of configuration items shown in Figure 5-1. The TOE is equipped with Fax
Unit (FCU) which is an optional product to MFP.
Figure 5.1 TOE boundary
The physical components that constitute the TOE of Operation Panel Unit, Engine Unit, Fax
Unit (option), Network Unit, Controller Board, Ic Ctlr, USB port, and SD card slot are
described.
(1) Operation Panel Unit
The Operation Panel Unit (hereafter Operation Panel) is a physical interface device that is
installed on the TOE when the TOE users directly operate the TOE. It features key switches,
LED indicators, an LCD touch screen, and the Operation Panel Control Board.
(2) Engine Unit
The Engine Unit contains a scanner engine, printer engine and the engine control board. The
scanner engine is an input device for reading paper documents. The printer engine is an
output device for printing and outputting paper documents.
(3) Fax Unit (optional)
The Fax Unit is a device that has a modem function to send and receive fax data when
connected to a telephone line. This TOE is a product equipped with Fax Function (optional).