What You Will See
With reference to a wireless network environment, you may notice any of the following symptoms:
IMPORTANT! This concern ONLY applies when using Lexmark Scan Applications; i.e., Scan Center and Lexmark All-In-One (AOI) Center. This does NOT apply when using Macintosh's Image Capture application (ICA) or any other third-party scan software.
- Required applications are not running.
- Required applications blocked by Firewall.
- Required applications are not running due to having a corrupted loginwindow.plist.
- Period of inactivity resulting in the printer receiving a different IP Address.
This functionality is handled by two applications:
- XXXXX Series Button Monitor - XXXXX refers to the Printer model number
IMPORTANT! Verify that these applications are running in the Activity Monitor. You can gain access to the Activity Monitor via Applications > Utilities. Click here for an illustration.
If the applications are running, you should next test for a possible firewall condition:
Action 1 Click on System Preferences. 2 Click on Security. 3 Click on Firewall. 4 Temporarily select "Allow all incoming connections". Click here for an illustration. 5 Test again. If the application list successfully transmits, you will need to create permanent exceptions for the above mentioned applications. 6 Perform a similar procedure with any third party firewall software application.
NOTE: For Macintosh OS X 10.4.x (Tiger) --- System Preferences > Sharing > Firewall with a 'Start' or 'Stop' button to allow or prevent all incoming connections. Click here for an illustration.
A corrupted loginwindow.plist can prevent the 'Button Monitor' and 'LexmarkNetworkService' application from starting properly. This loginwindow.plist is located in the /Library/Preferences folder. Click here for an illustration.
NOTE: Avoid duplicate loginwindow.plist found under/Users//Library/Preferences, since it is not edited by the Lexmark installation software. Try the following:
Action 1 Rename the old loginwindow.plist to something like loginwindowold.plist. 2 Select it by clicking on the file icon. Then click on the filename, in order to rename the file. Alternatively, Ctrl + click offers a similar option. 3 Reinstall your printer software. This will create a new loginwindow.plist.
IMPORTANT! If you do not rename the old loginwindow.plist, it will remain in a corrupted state and the reinstallation of the printer software may not fix the problem. If necessary, the 'old' .plist can be used for further diagnosis.
WARNING! Advanced users can edit the corrupt loginwindow.plist, but Lexmark cannot be held responsible for any lost application functionality or other side-effects.
The sample illustration below shows a normal loginwindow.plist, and excludes other application entries that may be seen by the enduser.
Click Image to Enlarge
The sample illustration below shows a corrupted loginwindow.plist, as seen in a text editor.
Click Image to Enlarge
NOTE: If the printer picked up a new IP address, you may have to uninstall and reinstall the printer software by inserting the installation CD into your CD/DVD drive, and re-running the 'Lexmark Setup Assistant' (LSA) or 'Wireless Configuration/Setup Utility' (WCU/WSU). This should be visible in the Lexmark Extras Folder or the bottom of the initial-installation screen.
Possible reasons for having a new printer IP address:
Dynamic Host Control Protocol (DHCP) - This router feature is responsible for device IP address assignment.
- The printer was turned 'Off' for an extended period of time.
- The router (AP) was replaced or reset*.
- The DHCP leased IP address of the router has expired, and your printer's IP address went to a different device on the network. Your printer picked up a new IP address from the router.
- Printer warranty replacement. Why? A new wireless network adapter and corresponding MAC(UAA) address will require reconfiguration using the Wireless Setup Utility.
- The printer moved to a new location on a different network.
* 'router' (AP) reset types:
- A 'soft' reset is the result of removing the power plug and, after a brief pause, reconnecting the plug into the power receptacle.
- A 'hard' reset is the result of depressing the small button with a fine-point object, such as the tip of a pen.
- A 'hard' reset can also result if a configuration utility option, such as 'reset router', was selected through the embedded web server or another router configuration software.
AP - Access Point.
Embedded Web Server (EWS) – This is the network device's web page. For example, http://printer_IP_address or http://router_IP_address, where printer/router_IP_address is the TCP/IP address of the printer or router.
Media Access Control – Universally Administered Address (MAC – UAA) – is a unique address associated with a network adapter. Look at the sticker on the back of the printer to locate this 12-digit hexadecimal address.
When your network printer was installed, the printer's IP address (e.g., 10.10.10.10) got stored on your Mac. This can become a problem if your printer receives a different IP address (e.g., 10.10.10.12). Hence, a communication error occurs because your Mac will look for the original IP address. To summarize, the reasons your printer may receive a different printer IP address:
Again, you will have to use the Lexmark Setup Assistant located on your printer's installation CD to re-establish communication.
Possible prevention measures, to include:
Still Need Help?
If you require additional assistance, please contact Lexmark Technical Support. NOTE: When calling for support, you will need your printers machine/model type and serial number (SN).
Please call from near the computer and printer, in case the technician asks you to perform a task on one or both of these devices.