Lexmark T644tn User Manual

							Setting security using the Embedded Web Server (EWS)
101
Administrative support
certificate and the certificate authority certificate must be installed. Each host must have its identifier in the Subject 
Alternate Name of the signed certificate.
Note:After a device is configured for IPSec with a host, IPSec is required for any IP communication to take 
place. 
Using Secure mode
You can configure the TCP and UDP ports to one of three modes:
Disabled—Never allows network connections to this port
Secure and Unsecure—Allows the port to remain open, even in Secure mode
Unsecured Only—Allows the port to only open when the printer is not in Secure mode
Note:A password must be set to enable Secure mode. Once enabled, only the ports set to Secure and 
Unsecure will be open.
To configure the Secure mode for TCP and UDP ports from the Embedded Web Server:
1Open your Web browser. In the address line, enter the IP address of the printer you want to configure using the 
for mat: http://ip_address/.
2Click Configuration.
3Under Other Settings, click Network/Ports.
4Click TCP/IP Port Access.
Note:Disabling ports will disable function on the printer.
Using 802.1x Authenticating
802.1x port 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 an optional internal wireless print server to 
provide WPA-Enterprise security support.
Support for 802.1x requires the establishment of credentials for the printer. The printer must be known to the Authentication 
Server (AS). The AS will allow network access to devices presenting a valid set of credentials which typically involves a 
name/password combination and possibly a certificate. The AS will allow network access to printers presenting a valid set 
of credentials. You can manage the credentials by using the Embedded Web Server of the printer. To use certificates as 
part of the credentials:
1Open your Web browser. In the address line, enter the IP address of the printer you want to configure using the 
for mat: http://ip_address/.
2Click Configuration.
3Under Other Settings, click Network/Ports.
4Click Certificate Management.
To enable and configure 802.1x on the Embedded Web Server after installing the required certificates:
1Open your Web browser. In the address line, enter the IP address of the printer you want to configure using the 
for mat: http://ip_address/.
2Click Configuration.
3Under Other Settings, click Network/Ports.
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							Setting security using the Embedded Web Server (EWS)
102
Administrative support
4Click 802.1x Authentication.
Note:If an optional internal wireless print server is installed, click Wireless instead of 802.1x 
Authentication.
Locking the operator panel menus
Operator Panel Menu Lockout lets you create a PIN number and choose specific menus to lock. Each time a locked menu 
is selected, the user will be prompted to enter the correct PIN at the operator panel. The PIN does not affect any access 
through the EWS. To lock operator panel menus:
1Open your Web browser. In the address line, enter the IP address of the printer you want to configure using the 
for mat: http://ip_address/.
2Click Configuration.
3Under Other Settings, click Security.
4Click Menu Lockout Setup.
Printing Lockout
Printing Lockout lets you lock or unlock a printer using an assigned PIN. When locked, every job the printer receives will 
buffer to the hard disk. A user can print jobs only by entering the correct PIN on the operator panel. You can assign a PIN 
through the Web page of the device.
Note:This setting is only available when a hard disk is installed.
Note:Back channel data will be processed while the printer is locked. Reports such as user or event logs 
can be retrieved from a locked printer.
To set Printing Lockout:
1Open your Web browser. In the address line, enter the IP address of the printer you want to configure using the 
for mat: http://ip_address/.
2Click Configuration.
3Under Other Settings, click Security.
4Click Printer Lockout PIN.
Confidential Print Setup
Confidential Print Setup lets you designate a maximum number of PIN entry attempts and set an expiration time for print 
jobs. When a user exceeds a specific number of PIN entry attempts, all of that user’s print jobs are deleted. When a user 
has not printed their jobs within a designated time period, the print jobs are deleted. To activate Confidential Print Setup:
Note:This feature is only available on network models.
1Open your Web browser. In the address line, enter the IP address of the printer you want to configure using the 
for mat: http://ip_address/.
2Click Configuration.
3Under Other Settings, click Security.
4Click Confidential Print Setup.
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							3
Contents
Chapter 1: Learning about the printer  .............................................................................. 6
Identifying printers  ........................................................................................................................................... 6
Understanding the printer operator panel  ........................................................................................................ 9
Chapter 2: Installing drivers for local printing  ............................................................... 11
Windows ........................................................................................................................................................ 11
Macintosh ...................................................................................................................................................... 15
UNIX/Linux ..................................................................................................................................................... 16
Chapter 3: Installing drivers for network printing  ......................................................... 17
Printing a network setup page  ....................................................................................................................... 17
Assigning a printer IP address  ....................................................................................................................... 17
Verifying the IP settings  ................................................................................................................................. 18
Windows ........................................................................................................................................................ 18
Macintosh ...................................................................................................................................................... 22
UNIX/Linux ..................................................................................................................................................... 24
NetWare ......................................................................................................................................................... 24
Chapter 4: Installing and removing options  ................................................................... 25
Installing input options  ................................................................................................................................... 25
Installing a duplex unit  ................................................................................................................................... 27
Installing memory or option cards  .................................................................................................................. 28
Accessing the printer system board  ............................................................................................................... 28
Installing or removing a memory card  ............................................................................................................ 30
Installing or removing a flash memory or firmware card  ................................................................................ 32
Installing an option card  ................................................................................................................................. 34
Replacing the shield  ...................................................................................................................................... 35
Chapter 5: Printing ............................................................................................................36
Sending a job to print  ..................................................................................................................................... 36
Printing from a USB flash memory device  ..................................................................................................... 36
Canceling a print job  ...................................................................................................................................... 38
Printing the menu settings page  .................................................................................................................... 39
Printing a network setup page  ....................................................................................................................... 39
Printing a font sample list  ............................................................................................................................... 40
Printing a directory list  ................................................................................................................................... 40
Printing confidential and held jobs  ................................................................................................................. 40
Printing on specialty media  ............................................................................................................................ 43
Loading standard trays and optional trays  ..................................................................................................... 44
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T640T642T644
Input capacity 250 sheets 500 sheets 500 sheets
Output capacity 250 sheets 500 sheets 500 sheets
Standard memory, non network/network 64MB/64MB 64MB/128MB 128MB/128MB
Maximum memory capacity, non network/network 576MB/576MB 576MB/640MB 640MB/640MB
Option card connectors 1 2 2
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Operating systemGo to page
Windows11
Windows Server 2003, Windows 2000, Windows XP, Windows 98 SE, Windows Me, 
Windows NT 4.x11
Windows 95 and Windows 98 (first edition)12
Serial printing12
Macintosh15
UNIX/Linux16
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23 Paper jam, 
3 pages jammed
Continue
Show areas
1. Open 
manual feed 
door.
Show areas
Show duplex
Show rear door
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MessageAction
42.xy Cartridge region mismatch
Note:x = the printer region, y = the cartridge 
regionInstall the correct cartridge for the printer region.
Region codes are:
0 = Worldwide
1 = Americas
2 = EMEA
3 = Asia
9 = Undefined
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							Printing multi-language PDFs
104
Troubleshooting
Printing multi-language PDFs
Solving printing problems
SymptomCauseSolution
Some documents 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.
3Check the Print as image box.
4Click OK.
SymptomCause Solution
The operator panel 
display is blank or 
displays only diamonds.The printer self test 
failed.Turn the printer off, wait about 10 seconds, and turn the printer 
back on.
If the Ready message does not appear, turn the printer off and call 
for ser vice.
The message USB 
device unsupported 
appears when using a 
USB device.The USB device you are 
using may not be 
supported or has an 
error. Only specific USB 
flash memory devices 
are supported.For information regarding tested and approved USB flash memory 
devices, see our Lexmark Web site at http://
support.lexmark.com and click on KnowledgeBase to search 
for Direct USB printing.
Jobs do not print. The printer is not ready 
to receive data.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.
The specified output bin 
is full.Remove the stack of paper from the output bin, and then 
press .
The specified tray is 
empty.Load paper in the tray.
You are using the wrong 
printer driver or are 
printing to a file. Verify you are using the printer driver associated with the 
printer.
 If you are using a USB port, make sure you are running 
Windows 98/Me, Windows 2000, Windows XP, or 
Windows Server 2003 and using a Windows 98/Me, 
Windows 2000, Windows XP, or Windows Server 2003 
compatible printer driver.
Your MarkNet N8000 
series internal print 
server is not set up 
properly or is not 
connected properly.Verify that you have properly configured the printer for network 
printing.
See the drivers CD or the Lexmark Web site for information.
You are using the wrong 
interface cable, or the 
cable is not securely 
connected.Make sure you are using a recommended interface cable.
Make sure the connection is secure.
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							Solving printing problems
105
Troubleshooting
Held jobs do not print. A formatting error has 
occurred. Print the job. (Only part of the job may print.)
 Delete the job.
 Free up additional printer memory by scrolling through the list of 
held jobs and deleting others you have sent to the printer. The printer has 
insufficient memory.
The printer has received 
invalid data.Delete the job.
Job takes longer than 
expected to print.The job is too complex. Reduce the complexity of your print job by eliminating the number 
and size of fonts, the number and complexity of images, and the 
number of pages in the job.
Page Protect is set to 
On.Set Page Protect to Off from the Setup Menu.
For more information, see the Menus and Messages Guide.
Job prints from the 
wrong tray or on the 
wrong paper or specialty 
media.The operator panel menu 
settings do not match the 
media loaded in the tray.Make sure the Paper Size and Paper Type specified in the printer 
driver match the paper size and type in the tray.
Incorrect characters 
print.You are using an 
incompatible parallel 
cable.If you are using a parallel interface, make sure you are using an 
IEEE 1284-compliant parallel cable. We recommend Lexmark part 
number 1329605 (10 ft) or 1427498 (20 ft) for the standard parallel 
port.
The printer is 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.Tray linking is not 
configured properly. Make sure both the size and type of media are the same in both 
trays.
 Make sure the paper guides in the trays are set for the correct 
size media.
 Make sure the menu values for both size and type are set 
correctly in the Paper Menu.
 See Linking trays, or see the Menus and Messages Guide for 
more information.
Large jobs do not collate. Collate is not set to On. Set Collation to On in the Finishing Menu or through the printer 
driver.
Note:Setting Collation to Off in the driver overrides the setting in 
the Finishing Menu.
See the Menus and Messages Guide for more information.
The job is too complex. 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.
The printer does not 
have enough memory.Add printer memory or an optional hard disk.
Unexpected page breaks 
occur.The job has timed out. Set Print Timeout to a higher value from the Setup Menu.
See the Menus and Messages Guide for more information.
SymptomCause Solution
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							Solving option problems
106
Troubleshooting
Solving option problems
If an option does not operate correctly after it is installed or if it quits working:
Turn the printer off, wait for about 10 seconds, and turn the printer on. If this does not fix the problem, unplug the 
printer, and check the connection between the option and printer.
Print the 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. See Printing the menu settings page for more information.
Make sure the option is selected in the software application you are using.
The following table lists printer options and suggested corrective actions for related problems. If the suggested corrective 
action does not fix the problem, call your service representative.
OptionAction
5-bin mailbox Make sure the connection between each 5-bin mailbox or the connection between the 5-
bin mailbox and the printer is secure. If the 5-bin mailbox is listed on the menu settings 
page, but print media jams when it exits the printer and enters the mailbox, it may not be 
properly installed. Reinstall each 5-bin mailbox.
Drawers  Make sure the connection between drawers (250-sheet drawer, 500-sheet drawer, or 
2000-sheet drawer), or the connection between a drawer and a duplex unit or the printer 
is secure. 
 Make sure the print media is loaded correctly. See Loading standard trays and 
optional trays for more details.
Duplex unit  Make sure the connection between the duplex unit and the printer is secure. If the 
duplex unit is listed on the menu settings page, but print media jams when it enters or 
exits the duplex unit, the printer and duplex unit may not be properly aligned. 
 Make sure the duplex front access cover is securely installed.
Envelope feeder  Make sure the connection between the envelope feeder and the printer is secure. 
 Make sure the Paper Size setting is correct in both the Paper Menu and in the software 
application.
 Make sure the envelopes are loaded correctly. See Loading the envelope feeder for 
more details.
Finisher  Make sure the connection between the finisher and the printer is secure. If the finisher is 
listed on the menu settings page, but print media jams when it exits the printer and 
enters the finisher, it may not be properly installed. Reinstall the finisher.
 Make sure you are using a print media size compatible with your optional output bins. 
See Supported print media.
Note:The maximum number of sheets for stapling cannot exceed 25-sheets.
Flash memory Make sure flash memory is securely connected to the printer system board. 
Hard disk with 
adapterMake sure the hard disk is securely connected to the hard disk adapter card. Also, make 
sure the hard disk adapter card is securely connected to the printer system board.
High-capacity 
output stackerMake sure the connection between the output stacker and the printer is secure. If the high-
capacity output stacker is listed on the menu settings page, but print media jams when it 
exits the printer and enters the output stacker, it may not be properly installed. Reinstall the 
high-capacity output stacker.
Infrared adapter If infrared communication stops or does not occur, make sure:
 The distance between the two infrared ports is 1 meter 
(39 in.) or less. If communication does not occur between ports, move the ports closer 
together.
 Both ports are stable.
 The computer and the printer are on a level surface.
 The angle of communication between the two infrared ports is within 15 degrees of 
either side of an imaginary line drawn between the two infrared ports.
 No bright light, such as direct sunlight, is interfering with communication.
 No objects are placed between the two infrared ports.
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							Solving option problems
107
Troubleshooting
Internal print 
server Make sure the internal print server (also called an internal network adapter or INA) is 
securely connected to the printer system board.
 Make sure you are using the correct cable, that it is securely connected, and the 
network software is correctly set up.
See the drivers CD that shipped with the printer for more details.
Large capacity 
feeder (2000-sheet 
drawer)See Solving 2000-sheet drawer problems.
Output expander Make sure the connection between each output expander or the connection between the 
output expander and the printer is secure. If the output expander is listed on the menu 
settings page, but print media jams when it exits the printer and enters the output 
expander, it may not be properly installed. Reinstall each output expander.
Printer memory Make sure printer memory is securely connected to the printer system board.
USB/Parallel 
interface Make sure the USB/parallel interface card is securely connected to the printer system 
board.
 Make sure you are using the correct cable and that it is securely connected.
OptionAction
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							Solving option problems
108
Troubleshooting
Solving 2000-sheet drawer problems
ProblemSolution
The elevator tray does not raise when the 
loading door is closed, or the elevator tray 
does not lower when the door is opened and 
the elevator button is pushed.Check the following:
 The printer is properly attached to the 2000-sheet drawer.
 The printer is powered on.
 The power cord is plugged firmly into the back of the 2000-sheet 
drawer.
 The power cord is plugged into an outlet.
 The outlet has power.
The elevator tray lowers unexpectedly. Check to see if the printer is out of print media or has a jam.
More than one sheet of print media is fed, or a 
sheet is fed improperly.Remove the print media in the printer paper path, and check the stack to 
ensure the print media has been loaded properly. Be sure to remove the 
top and bottom sheets of each ream of paper that is loaded.
A jam occurs.
Rubber feed rollers do not turn to advance 
print media.Check the following:
 The power cord is plugged firmly into the back of the 2000-sheet 
drawer.
 The power cord is plugged into an outlet.
 The outlet has power.
Consistent misfeeds or jams in the drawer Try the following:
 Flex the paper.
 Turn the print media over.
Check the following:
 Drawer is properly installed.
 Print media is loaded correctly.
 Print media is not damaged.
 Print media meets specifications.
 Guides are positioned correctly for the print media size selected.
Service messages  A service message indicates printer failure that may require service. 
Turn the printer off, wait about 10 seconds, and then turn the printer on.
If the error recurs, write down the error number, the problem, and a 
detailed description. Call for service.
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							Solving paper feed problems
109
Troubleshooting
Solving paper feed problems
SymptomCauseSolution
Paper frequently jams.  You are using paper that does not 
meet the printer specifications.Use recommended paper and other specialty media.
See the Card Stock & Label Guide available on our 
Lexmark Web site at www.lexmark.com for detailed 
specifications.
See Avoiding jams for information that can help prevent 
jams from occurring.
You have loaded too much paper 
or too many envelopes.Make sure the stack of paper you load does not exceed 
the maximum stack height indicated in the tray or on the 
multipurpose feeder.
Guides in the selected tray are not 
set to the appropriate position for 
the size paper loaded.Move the guides in the tray to the correct position.
The paper has absorbed moisture 
due to high humidity.Load paper from a fresh package.
Store paper in its original wrapper until you load it.
See Storing print media for more information.
The pick rolls may be worn. Replace the pick rolls.
See Ordering pick rollers for more information.
The Paper Jam 
message remains after 
you remove the jammed 
paper. You have not pressed Go or have 
not cleared the entire paper path.Clear paper from the entire paper path, and then 
press .
See Clearing jams for more information.
The page that jammed 
does not reprint after you 
clear the jam. Jam Recovery in the Setup menu 
is set to Off.Set Jam Recovery to Auto or On.
See the Menus and Messages Guide for more 
information.
Blank pages feed into 
the output bin. An incorrect media type is loaded 
in the tray being printed from.Load the correct type media for your print job, or change 
the Paper Type to match the type of media loaded.
See the Menus and Messages Guide for more 
information.
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							Solving print quality problems
110
Troubleshooting
Solving print quality problems
The information in the following table may help you solve print quality problems. If these suggestions still do not correct the 
problem, call for service. You may have a printer part that requires adjustment or replacement.
ProblemAction
Print is too light.   The toner may be low. To utilize the remaining toner, remove the cartridge by gripping 
the handles with both hands. With the cartridge arrows pointing downward, firmly 
shake the print cartridge side-to-side and front-to-back several times to redistribute the 
toner. Reinstall the cartridge and then press 
. Repeat this procedure multiple times 
until the print remains faded. When the print remains faded replace the print cartridge.
 Change the Toner Darkness setting in the Quality menu.
 Change the Brightness setting in the Quality menu.
 Change the Contrast setting in the Quality menu.
 If you are printing on an uneven print surface, change the Paper Weight and Paper 
Texture settings in the Paper menu.
 Verify the correct print media is being used.
Toner smears or print comes 
off the page. If you are printing on an uneven print surface, change the Paper Weight and Paper 
Texture settings in the Paper menu.
 Verify the print media is within the printer specifications. See Understanding paper 
and specialty media guidelines for more details.
If the problem continues, contact the Lexmark Customer Support Center at
1-800-Lexmark (1-800-539-6275) or http://support.lexmark.com.
Toner appears on the back of 
the printed page.Toner is on the transfer roll. To help prevent this, do not load print media that is smaller 
than the page size of the job to be printed.
Open and close the printer top front cover to run the printer setup cycle and clean the 
transfer roll.
Toner fog or background 
shading appears on the page. Check the print cartridge to make sure it is installed correctly.
 Replace the print cartridge.
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