Lexmark 640 Manual De Usuario

All resources on the hard disk will be deleted. (Resources residing in flash memory or in RAM remain 
unaffected.)

Note: This setting is only available when a hard disk is installed.

Turn the printer off.

Press and hold 

 and 

 while turning the printer on.

Release the buttons when you see a clock.

 appears on the first line of the display.

Press 

 until the 

 appears next to Disk Encryption, and then press 

.

Press 

 until the 

 appears next to Enable, and then press 

.

appears. Press 

 until the 

 appears next to Yes, and then press 

. 

The Encrypting Disk progress bar appears.

When disk encryption has finished, press 

.

Press 

 until the 

 appears next to Exit Config Menus, and then press 

.

To disable disk encryption:

Turn the printer off.

Press and hold 

 and 

 while turning the printer on.

Release the buttons when you see a clock.

 appears on the first line of the display.

Press 

 until the 

 appears next to Disk Encryption, and then press 

.

Press 

 until the 

 appears next to Disable, and then press 

.

appears. Press 

 until the 

 appears next to Yes.

Press 

. The Encrypting Disk progress bar appears.

When disk encryption has finished, click the back arrow.

Press 

 until the 

 appears next to Exit Config Menu, and then press 

.

You can enhance the security of network communications and device configuration by using the advanced security options. 
These features are available through the Web page of the device.

Setting the system password protects configuration of the Embedded Web Server. A system password is also required for 
Secure mode and confidential communication with MVP.

To set the system password:

Open your Web browser. In the address line, enter the IP address of the printer you want to configure using the 
format: http: //ip_address/.

Click Configuration.