Lexmark C935dn User Manual

							6Press  repeatedly until Yes appears, and then press .
A progress bar appears.
7Press  repeatedly until Exit Config Menu appears, and then press .
The printer performs its power‑on sequence, and then Ready appears.
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 Configuration.
3Under Other Settings, click Security.
4Click Menu Lockout Setup.
Locking the entire printer
You can use the printer lockout functionality to create a PIN that must be entered in order to use the printer. When
the printer is locked, every print job it receives will buffer to the hard disk. To print the jobs, the user must enter the
correct PIN using the control panel.
Notes:
A printer hard disk must be installed in the printer and working properly for the printer lockout functionality to
be available.
Some data will continue to be processed while the printer is locked. Reports such as user or event logs can be
retrieved from a locked printer.
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 Configuration.
3Under Other Settings, click Security.
4Click Printer Lockout PIN. Administrative support151
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							Modifying confidential print settings
You can modify confidential print settings using the Embedded Web Server. You can set a maximum number of PIN
entry attempts. When a user exceeds a specific number of PIN entry attempts, all of the jobs for that user are deleted.
You can set an expiration time for confidential print jobs. When a user has not printed the jobs within the designated
time period, all of the jobs for that user are deleted.
Note: This functionality is only available on network printers.
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 the printer and up to five
hosts, using both IPv4 and IPv6.
To configure IPSec using the Embedded Web Server:
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 Network/Ports.
4Click IPSec.
IPSec supports two types of authentication:
Shared Key Authentication—Authenticates any ASCII phrase shared among all participating host computers. This
is the easiest way to configure when only a few host computers on the network use IPSec.
Certificate Authentication—Authenticates any host computer or subnet of hosts for IPSec. Each host computer
must have a public/private key pair. Validate Peer Certificate is enabled by default, requiring each host to have a
signed authority certificate that is installed. Each host must have its identifier in the Subject Alternate Name field
of the signed certificate.
Note: After a printer is configured for IPSec with a host, IPSec is required for any IP communications to take place.
Supporting SNMPv3
Simple Network Management Protocol version 3 (SNMPv3) allows for encrypted and authenticated network
connections. It also lets a system support person select the desired level of security. Prior to use, at least one user name
and password must be assigned from the settings page. Administrative support152
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							To configure SNMPv3 through the Embedded Web Server:
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 Network/Ports.
4Click SNMP.
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 establishment of credentials for the printer, such as certificates. Certificates provide a
way for the printer to be known to the Authentication Server (AS). The AS allows network access to wireless printers
or print servers presenting a valid set of credentials. You can manage the credentials by using the Embedded Web
Server.
To install and use certificates as part of the credentials:
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 Network/Ports.
4Click Certificate Management.
To enable and configure 802.1x after installing the required certificates:
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 Network/Ports.
4Click 802.1x Authentication. If a wireless internal print server is installed in the printer, click Wireless instead. Administrative support153
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							Creating an administrative password
Creating an administrative password allows a system support person to password‑protect printer settings. Once a
password is created, it must be entered to access the Configuration and Reports pages of the Embedded Web Server.
An administrative password for the Embedded Web Server must be created before Secure mode can be activated.
1Open a Web browser.
2In the address bar, type the network printer or print server IP address, and then press Enter.
3Click Configuration.
4Under Other Settings, click Security.
5Click Create Password.
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 server IP address, and then press Enter.
3Click Configuration.
4Under Other Settings, click Security.
5Click TCP/IP Port Access.
6Click the box to the right of Secure Mode Active.
Note: If Secure Mode Active is gray or not selectable, create an administrative password and try again.
7Select a setting for each listed port, and then click Submit.
There are three ways to configure the TCP and UDP network ports:
Disabled—Port is disabled and never allows network connections
Secure and Unsecure—Port is always open including when the printer is in Secure mode
Unsecured Only—Port is open only when printer is in Secure mode Administrative support154
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							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.
Other electrical equipment plugged into the outlet is working.
The printer is turned on.
The printer cable is securely attached to the printer and the host computer, print server, option, or other network
device.
Once you have checked each of these possibilities, turn the printer off and then back on. This often fixes the problem.
Door A will not shut properly
Make sure the green paper jam clearance lever behind Door A is in place:
1Press down on the white release lever beneath Door A at the top of the printer, and then open the door.
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							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 Ready do not appear, turn the printer off and contact Customer Support.
Error message about reading USB drive appears
Make sure the USB drive is supported. For information regarding tested and approved USB flash memory devices, visit
the Lexmark Web site at www.lexmark.com.
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. Press  to return the
printer to the Ready state. Troubleshooting156
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							CHECK TO SEE IF THE STANDARD EXIT BIN IS FULL
Remove the stack of paper from the standard exit bin, and then press .
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, make sure you are running Windows Vista, Windows XP, Windows Server 2003,
Windows 2000/98/Me and using compatible printer software.
MAKE SURE THE INTERNAL PRINT SERVER IS INSTALLED PROPERLY AND WORKING
Make sure the internal print server is properly installed and that the printer is connected to the network. For
more information about installing a network printer, click View Users Guide and Documentation on the Software
and Documentation CD.
Print a network setup page and check that the status shows Connected. If the status is Not Connected, check the
network cables, and then try printing the network setup page again. Contact your system support person to make
sure the network is functioning correctly.
Copies of the printer software are also available on the Lexmark Web site at www.lexmark.com.
MAKE SURE YOU ARE USING A RECOMMENDED USB, SERIAL, OR ETHERNET CABLE
For more information, visit the Lexmark Web site at www.lexmark.com.
MAKE SURE PRINTER CABLES ARE SECURELY CONNECTED
Check the cable connections to the printer and print server to make sure they are secure.
For more information, see the setup documentation that came with the printer.
Confidential and other held jobs do not print
These are possible solutions. Try one or more of the following:
HAS A FORMATTING ERROR OCCURRED?
If so, delete the job and try printing it again. Only part of the job may print.
MAKE SURE THE PRINTER HAS SUFFICIENT MEMORY
Free up additional printer memory by scrolling through the list of held jobs and deleting some of them.
CHECK TO SEE IF THE PRINTER HAS RECEIVED INVALID DATA
Delete invalid jobs. Troubleshooting157
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							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
1From the control panel, press .
2Press  until Settings appears, and then press .
3Press  until Setup Menu appears, and then press .
4Press  until Print Recovery appears, and then press .
5Press  until Page Protect appears, and then press .
6Press  until Off appears, and then press .
Job prints from the wrong tray or on the wrong paper
C
HECK THE PAPER TYPE SETTING
Make sure the Paper Type setting matches the paper loaded in the tray.
Incorrect characters print
Make sure the printer is not in Hex Trace mode. If Ready Hex appears on the display, you must exit Hex Trace mode
before you can print your job. Turn the printer off and back on to exit Hex Trace mode.
Tray linking does not work
A
RE THE SAME SIZE AND TYPE OF PAPER LOADED IN EACH TRAY?
Load the same size and type of paper in each tray.
Move the paper guides to the correct positions for the paper size loaded in each tray.
ARE THE PAPER SIZE AND PAPER TYPE SETTINGS THE SAME FOR EACH TRAY?
Print a menu settings page and compare the settings for each tray.
If necessary, adjust the settings from the Paper Size/Type menu.
Note: The multipurpose feeder does not automatically sense the paper size. You must set the size from the Paper
Size/Type menu. Troubleshooting158
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							Large jobs do not collate
These are possible solutions. Try one or more of the following:
MAKE SURE COLLATE IS SET TO ON
From the Finishing menu or Print Properties, set Collate to On.
Note: Setting Collate to Off in the software overrides the setting in the Finishing menu.
REDUCE THE COMPLEXITY OF THE PRINT JOB
Reduce the complexity of the print job by eliminating the number and size of fonts, the number and complexity of
images, and the number of pages in the job.
MAKE SURE THE PRINTER HAS ENOUGH MEMORY
Add printer memory or an optional hard disk.
Unexpected page breaks occur
Increase the Print Timeout value:
1From the control panel, press .
2Press  until Settings appears, and then press .
3Press  until Setup Menu appears, and then press .
4Press  until Timeouts appears, and then press .
5Press  until Print Timeout appears, and then press .
6Press  until the desired value appears, and then press .
Solving option problems
Option does not operate correctly or quits after it is installed
These are possible solutions. Try one or more of the following:
RESET THE PRINTER
Turn the printer off, wait for about 10 seconds, and then turn the printer on. Troubleshooting159
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							CHECK TO SEE IF THE OPTION IS CONNECTED TO THE PRINTER
1Turn the printer off.
2Unplug the printer.
3Check the connection between the option and the printer.
MAKE SURE THE OPTION IS INSTALLED
Print a menu settings page and check to see if the option is listed in the Installed Options list. If the option is not
listed, reinstall it.
MAKE SURE THE OPTION IS SELECTED
From the program you are using, select the option. Mac OS 9 users should make sure the printer is set up in the
Chooser.
Drawers
M
AKE SURE THE PAPER IS LOADED CORRECTLY
1Open the paper tray.
2Check for paper jams or misfeeds.
3Make sure paper guides are aligned against the edges of the paper.
4Make sure the paper tray closes properly.
5Close the door.
RESET THE PRINTER
Turn the printer off. Wait 10 seconds. Turn the printer back on.
Finisher
If the finisher does not operate correctly, these are possible solutions. Try one or more of the following:
MAKE SURE THE CONNECTION BETWEEN THE FINISHER AND THE PRINTER IS SECURE
If the finisher is listed on the menu settings page, but paper jams when it exits the printer and enters the finisher, it
may not be properly installed. Reinstall the finisher. For more information, see the hardware setup documentation
that shipped with the finisher.
MAKE SURE YOU ARE USING A PAPER SIZE THAT IS COMPATIBLE WITH THE FINISHER EXIT BINS
For more information about supported paper sizes, click View Users Guide and Documentation on the Software
and Documentation CD. Troubleshooting160
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