Konica Minolta bizhub C284 Security Guide - Page 39

bizhub C554/C454/C364/C284/C224

2-27

2.8

Overwrite All Data Function

2

2.8

Overwrite All Data Function

When access to the machine by the administrator of the machine through the Administrator Settings is au-

thenticated, the machine enables setting of the operation of the Overwrite All Data function.

When the machine is to be discarded, or use of a leased machine is terminated at the end of the leasing con-

tract, the Overwrite All Data function overwrites and erases all data saved in all spaces of the HDD. The func-

tion also resets all passwords saved in the memory area on the MFP board and the SSD board to factory

settings, preventing data from leaking. For details of items that are cleared by the Overwrite All Data function,

see page 1-8.

The HDD Overwrite Method offers the choice of eight different modes, [Mode 1] through [Mode 8]. Overwrite

All Data takes about less than one hour in [Mode 1] at the minimum and about 9 hours in [Mode 8] at the

maximum.

Setting the Overwrite All Data function

0

Performing Overwrite All Data deletes the currently set external server. Set the external server again.

For the procedure to set the external server, see page 2-14.

0

Performing Overwrite All Data deletes the loadable driver installed in the machine, which calls for setting

made by the Service Engineer. For details, contact your Service Representative.

0

For the procedure to call the HDD Settings screen on the display, see steps 1 and 2 of page 2-21.

0

Do not leave the machine with the setting screen of Administrator Settings left shown on the display. If

it is absolutely necessary to leave the machine, be sure first to log off from the Administrator Settings.

1

Call the HDD Settings screen on the display from the control panel.

2

Touch [Overwrite All Data].

Mode

Description

Mode 1

Overwrites once with "0x00."

Mode 2

Overwrites with "random numbers"

ö

"random numbers"

ö

"0x00."

Mode 3

Overwrites with "0x00"

ö

"0xff"

ö

"random numbers"

ö

verifies.

Mode 4

Overwrites with "random numbers"

ö

"0x00"

ö

"0xff."

Mode 5


ö

"0xff"

ö

"0x00"

ö

"0xff."

Mode 6


ö

"0xff"

ö

"0x00"

ö

"0xff"

ö

"0x00"

ö

"0xff"

ö

"random

numbers."

Mode 7


ö

"0xff"

ö

"0x00"

ö

"0xff"

ö

"0x00"

ö

"0xff"

ö

"0xaa."

Mode 8


ö

"0xff"

ö

"0x00"

ö

"0xff"

ö

"0x00"

ö

"0xff"

ö

"0xaa"

ö

verifies.

Section	Page
Contents	2
1 Security	5
1.1 Introduction	5
Compliance with the ISO15408 Standard	5
Operating Precautions	5
INSTALLATION CHECKLIST	6
1.2 Security Functions	7
Check Count Clear Conditions	7
1.3 Data to be Protected	8
1.4 Precautions for Operation Control	9
Roles and Requirements of the Administrator	9
Password Usage Requirements	9
Network Connection Requirements for the Machine	9
Security function operation setting operating requirements	9
Operation and control of the machine	9
Machine Maintenance Control	10
Implementing digital signature properly	10
Operating conditions for the IC card and IC card reader	10
IC card owner requirements	10
1.5 Miscellaneous	11
Password Rules	11
Precautions for Use of Various Types of Applications	11
Encrypting communications	11
Items of Data Cleared by Overwrite All Data Function	11
Fax functions	12
General functions and operations	12
2 Administrator Operations	14
2.1 Accessing the Administrator Settings	14
2.1.1 Accessing the Administrator Settings	14
2.1.2 Accessing the User Mode	16
2.2 Enhancing the Security Function	18
2.2.1 Items cleared by HDD Format	19
2.2.2 Setting the Password Rules	20
2.2.3 Setting the Enhanced Security Mode	22
2.3 Preventing Unauthorized Access	24
Setting Prohibited Functions When Authentication Error	24
2.4 Setting the External Server	26
Setting the External Server	26
2.5 System Auto Reset Function	29
Setting the System Auto Reset function	29
2.6 Changing the Administrator Password	31
Changing the Administrator Password	31
2.7 Protecting Data in the HDD	33
2.7.1 Setting the Encryption Key (encryption word)	33
2.7.2 Changing the Encryption Key	37
2.8 Overwrite All Data Function	39
Setting the Overwrite All Data function	39
2.9 S/MIME Communication Setting Function	41
Setting the S/MIME Communication	41
2.10 PC-Fax RX Setting Function	44
PC-Fax RX Setting	44
2.11 TSI User Box Setting Function	46
TSI User Box Setting	46
2.12 TCP/IP Setting Function	48
2.12.1 Setting the IP Address	48
2.12.2 Registering the DNS Server	48
2.13 NetWare Setting Function	49
Making the NetWare Setting	49
2.14 SMB Setting Function	50
Setting the NetBIOS Name	50
2.15 E-Mail Setting Function	51
Setting the SMTP Server (E-Mail Server)	51
3 User Operations	53
3.1 User Authentication Function	53
User authentication using the IC card	53
3.2 Encrypted Document Function	55
Accessing the Encrypted document	55
3.3 Scan to Me Function	56

Konica Minolta bizhub C284 Security Guide - Page 39

Overwrite All Data Function

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