2.5. TOE Structure Figure 2.2 shows the structure of this TOE. Scanning
function
FTP
function
Operation
panel
HDD
Network
card
bizhub PRO 920 main unit
Internal
network
Print controller
PC data receiving
function
Control range of TOE
Basic
function
Service for administrator (management
function)
Service for CE (CE function)
bizhub PRO 920
Printing
function
Copier
function
Hardware
User BOX
Document data file
Printer
function
Manageme
nt function
Visible function for user
Scan to FTP
function
Scan to Email
function Scan to PC(SMB)
function
HDD storage
function HDD readout
function
SMB
function
Email
function
Controller
control
program
Document data
temporary storage
OS(VxWorks5.4)
Centronics
interface 2
Document data
temporary storage HDD2
RS232C
interface
Public telephone
line network
Modem
BOX readout
function BOX storage
function
bizhub PRO 920 control software
Deletion function of document data
Deletion
function
OS(VxWorks5.4)
Image control
program
USB
interface Centronics
interface 1
CE
function
Figure 2.2 TOE Structure Bizhub PRO 920 series consists of buzhub PRO 920 series main unit hardware, print controller, HDD1, HDD2, operation panel, and network card. And bizhub PRO 920 control software consists of the image control program and the controller control program. The main unit of bizhub PRO 920 series has the scanning function that converts the paper document to electronic data, and the printing function that prints characters and figures on the paper. The print controller performs the data exchange of the received PC data to print characters and figures on the paper. The USB interface and Centronics interface1 are used to connect with the computer for the maintenance to set and create the TOE, and cannot be accessed the document data. The Centronics interface2 is to connect locally with the client PC and execute printing. The HDD1 is the storage device that stores the data (temporary storage is also possible). The HDD2 is the storage device that stores temporarily the data. VxWorks 5.4 is used for the operating system (OS). Bizhub PRO 920 control software operates with OS (VxWorks 5.4). The OS controls input and output of the document data for the hardware and bizhub PRO 920 control software. The image control program controls the management function, CE function, user functions (refer to the later Table 2.1 : copier, printer, scan to Email, scan