Lexmark C790 manual Erasing volatile memory, Erasing non-volatile memory, 146

Erasing volatile memory

The volatile memory (RAM) installed on your printer requires a power source to retain information. To erase the buffered data, simply power down the device.

Erasing non-volatile memory

There are several methods available for erasing data stored in non-volatile memory, depending on the type of memory device installed, and the type of data stored by that device. For information about how to erase each type of information, see the Embedded Web Server Administrator Guide.

•Individual settings—Erase individual printer settings using the printer control panel or the printer Embedded Web Server.

•Device and network settings—Erase device and network settings and restore factory defaults by resetting the NVRAM using the printer Config menu.

•Security settings—Restore factory defaults or erase security settings by selecting a behavior for the Security Reset Jumper in the Embedded Web Server, and then moving a hardware jumper located on the motherboard.

•Fax data—Erase fax settings and data by resetting the NVRAM using the printer Config menu. Use this when the printer does not contain a hard disk or if you have chosen NAND for fax storage.

Note: If the printer hard disk is partitioned for fax storage, then you must reformat that partition to erase fax data and settings.

•Embedded solutions—Erase information and settings associated with embedded solutions by uninstalling the solutions or applications, or by restoring factory defaults using the printer Config menu.

Using the printer control panel

1Turn the printer off.

2Hold down and bar appears.

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while turning the printer on. Release the buttons only when the screen with the progress

The printer performs a power-on sequence, and then the Configuration menu appears. Once the printer is fully powered up, the touch screen displays a list of functions, instead of the standard home screen icons such as Copy or Fax.

3Touch Wipe All Settings.

The printer will reboot several times during this process.

Note: Wipe All Settings securely removes device settings, solutions, jobs, faxes, and passwords on the printer.

4Touch Back, and then Exit Config Menu.

The printer will power-on reset, and then return to normal operating mode.

Securing the printer hard disk and other installed memory

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