Disk Encryption; Wipe Disk; Wipe All Settings - Lexmark C746n Service Manual

Disk Encryption

Controls whether the printer encrypts the information that it writes to the hard disk.
Warning: When the value for Disk Encryption, the printer completely formats the hard disk which means that all
information on the disk is deleted.
Note: If an encrypted disk is removed from the printer and another disk is installed, the Disk Corrupted.
Reformat? message appears. The newly installed disk must either be formatted or removed from the printer.
Selections include Disable (default) and Enable. When Disk Encryption is selected, Yes or No appears for you
to confirm. Select either Yes or No to continue. To cancel, select No.
The Disk Encryption menu item only appears when:
A non-defective disk is installed in the printer.
•
The values of bits 3-2 of digit 4 in the Configuration ID 2 are either 01 for Supported, or 10 for Supported
•
with an internal network adapter (INA).
A graphic appears, showing:
The message Encrypting Disk or Formatting Disk
•
• A percentage scale
The message DO NOT POWER OFF
•
The process is complete when the percentage scale displays 100.

Wipe Disk

Note: Due to the lengthy amount of time required to wipe an entire hard disk using either method, a wipe should
not be initiated unless it is absolutely unavoidable (for example, disk corruption), or unless the printer can
remain offline for several hours without inconveniencing users.
Warning: A user should not initiate either type of wipe from the Configuration Menu if the hard disk contains
downloaded fonts, macros, held jobs, and so forth that should not be erased.
This setting initiates either a single pass wipe or a multiple pass wipe of the entire hard disk. Select Disk Wipe
(fast) to complete a single pass wipe and replacement of the file system. Select Disk Wipe (secure) to
complete a multiple pass wipe at a more basic level.

Wipe All Settings

The purpose of this setting is to make any sensitive information that may exist on the device's volatile or non-
volatile storage completely indecipherable.
After selecting this setting, the operator panel displays the following message:
This operation will clear all settings, solutions, and jobs on this device. The device will
reboot during this process. Continue?
To cancel the NAND wipe operation and return to the main Configuration Menu, select No. To execute the
NAND wipe operation, select Yes.
After selecting Yes, the device initiates a non-critical NVRAM reset, and the operator panel displays the
message Resetting the device, and then the device reboots.
The progress bar area of the Lexmark logo screen that appears during boot up displays the following message
until the wiping process is finished:
Wiping disk...Pass [x] of [y]. [Z]% done.
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