Lexmark X940e User Manual

Administrative support
Adjusting the brightness of the display
If you are having trouble reading your display, the LCD brightness can be adjusted through the Settings menu.
1Make sure the printer is on and Ready appears.
2On the home screen, touch .
3Touch Settings..
4Touch General Settings.
5Touch  repeatedly until Brightness appears.
6Touch  to decrease the brightness, or touch  to increase the brightness.
Brightness settings can be adjusted from 5–100 (100 is the factory default setting).
7Touch...

5Touch  repeatedly until Timeouts appears.
6Touch  repeatedly until Power Saver appears.
7Touch  to decrease the time, or touch  to increase the time.
The settings available range from 2–240 minutes.
8Touch Submit.
9Touch .
Restoring the factory default settings
1Make sure the printer is on and Ready appears.
2On the home screen, touch .
3Touch Settings.
4Touch General Settings.
5Touch  repeatedly until Factory Defaults appears.
6Touch  until Restore Now appears.
7Touch Submit.
8Touch .
Encrypting the...

Locking the control panel menus using the Embedded Web
Server
You can use the control panel lockout functionality to create a PIN and choose specific menus to lock. Each time a locked
menu is selected, the user will be prompted to enter the correct PIN. The PIN does not affect access through the
Embedded Web Server.
To lock control panel menus:
1Open a Web browser. In the address bar, type the IP address of the printer or print server to be protected using
the format: http://ip_address/.
2Click...

To modify the confidential print settings:
1Open a Web browser. In the address bar, type the IP address of the printer or print server to be protected using
the format: http://ip_address/.
2Click Configuration.
3Under Other Settings, click Security.
4Click Confidential Print Setup.
Supporting IPSec
Internet Protocol Security (IPSec) provides authentication and encryption at the network layer allowing all application
and network connections over the IP protocol to be secure. IPSec can be set up between...

SNMPv3 authentication and encryption has three levels of support:
No authentication and no encryption
Authentication with no encryption
Authentication and encryption
Using 802.1x authentication
802.1x authentication allows the printer to join networks that require authentication before allowing access. 802.1x
port authentication can be used with the WPA (Wi‑Fi Protected Access) feature of wireless printers or print servers to
provide WPA‑Enterprise security support.
Support for 802.1x requires the...

6Type the same password in each Password box.
Changing this setting will cause the print server to reset.
7Click Submit.
Using Secure mode
Secure mode is a way to securely communicate over Transmission Control Protocol (TCP) and User Datagram Protocol
(UDP) ports.
Note: An administrative password for the Embedded Web Server must be created before Secure mode can be
enabled.
To configure Secure mode using the Embedded Web Server:
1Open a Web browser.
2In the address bar, type the network printer or print...

Troubleshooting
Checking an unresponsive printer
If your printer is not responding, make sure:
The power cord is plugged into the printer and a properly grounded electrical outlet.
The electrical outlet is not turned off by any switch or breaker.
The Ground Fault Circuit Interrupter (GFCI) has not tripped.
From the back of the printer, press the GFCI Reset button located above the printer power cord.
The printer is not plugged into any surge protectors, uninterrupted power supplies, or extension cords....

2Press the A1 green lever down to its normal position.
3Close Door A.
Solving printing problems
Multiple‑language PDFs do not print
The documents contain unavailable fonts.
1Open the document you want to print in Adobe Acrobat.
2Click the printer icon.
The Print dialog appears.
3Select Print as image.
4Click OK.
Control panel display is blank or displays only diamonds
The printer self test failed. Turn the printer off, wait about 10 seconds, and then turn the printer back on.
If Performing Self Test and...

Jobs do not print
These are possible solutions. Try one or more of the following:
MAKE SURE THE PRINTER IS READY TO PRINT
Make sure Ready or Power Saver appears on the display before sending a job to print.
CHECK TO SEE IF THE STANDARD EXIT BIN IS FULL
Remove the stack of paper from the standard exit bin.
CHECK TO SEE IF THE PAPER TRAY IS EMPTY
Load paper in the tray.
MAKE SURE THE CORRECT PRINTER SOFTWARE IS INSTALLED
Verify that you are using the correct printer software.
If you are using a USB port,...

CHECK TO SEE IF THE PRINTER HAS RECEIVED INVALID DATA
Delete invalid jobs.
Job takes longer than expected to print
These are possible solutions. Try one or more of the following:
REDUCE THE COMPLEXITY OF THE PRINT JOB
Eliminate the number and size of fonts, the number and complexity of images, and the number of pages in the job.
CHANGE THE PAGE PROTECT SETTING TO OFF
1Make sure the printer is on and Ready appears.
2On the home screen, touch .
3Touch Settings.
4Touch General Settings.
5Touch  repeatedly...