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January 2014 .P305 (EC3.2) Firmware Release Notes for the Lexmark X548, C 746(8), C & X792, C & X925, and C & X95(0,2,4) Series Lexmark Printers

Document ID:RE201
08/21/13 Properties  


EC 3.5


Lexmark Firmware Update (January '14)

Why Upgrade Firmware?

Upgrading your firmware can have any of these benefits:

  • Possible printer speed and efficiency improvements
  • Possible enhancements to printer capabilities with feature updates and new features
  • Resolve firmware or hardware issues that you may be experiencing
  • Enhance device compatibility with newly introduced operating systems or software printing applications


Firmware update instructions:

The following steps require you to download a file to your computer and/or upload firmware to your printer. The time required to complete this procedure depends on the quality of your network connection and the size of the file involved.

Basic and Premium Scan to Network (SNF app) Users!

If... Then... And then...
 You have SNF version v3.8.4 or older...  First update your version of Scan to Network to v4.1.15. You can proceed to update your device to base firmware  EC3 (.P305).
You have already updated firmware and lost SNF functionality...

You will have to:

  • Downgrade firmware to pre-EC3.2 level (<P305)
  • Deploy SNF v4.1.15 via the Virtual Solutions Center 

Note: Please contact your sales representative or Lexmark Technical Support if you need additional assistance.

Why Update? Failure to update this application will result in an unusable application with the following observable symptoms:

  • An internal error occurred while processing configuration” displays when you attempt to the access the Scan to Network Configuration options.
  • The Scan to Network icon will not be appear on the device control panel.

Settings > Device Solutions > Solutions (eSF)


Firmware Availability 

  1. Identify your printer model below.
  2. Download the correct firmware download package.
  3. Extract the firmware package (.zip) and double-click the .exe file to begin the firmware update process.
  4. If you need assistance with alternative flash methods, see .FLS Firmware Flash Methods below.



Firmware .P305 (EC 3.2) Release Notes (January '14)

Since .P278 and .P303

All Models: C746/C748 C792 C925 C950 X548 X746/X748 X792 X925 X95x* 6500e**

    • Added support for new 4.3" (109.22mm) display hardware
    • Added support for Lexmark Secure Content Monitor application
    • Improved energy savings and compliance with new regulations
    • Added Timed-Hibernate feature to all devices
    • Added PDF compression (MRC compression for advanced E-mail app and Solutions Apps only)
    • Walk-up ability to capture device debug logs and to export logs.tar.gz to thumbdrive from front panel
    • Added support for TIFF JPEG compression
    • Added EWS interface for RGB Replacement
    • Added JFIF header support for JPEG

    Updated the standard solutions:

    • Scan to Network version 3.8.4
    • Forms and Favorites version 4.0.6
    • Remote Operator Panel version 3.2.0
    • WS-Scan version 3.2.0
    • USB My MFP version 3.2.0 
    Fixes and various items addressed
    • Fixed another issue when FRU RIP cards are installed and the code is at different levels
    • Several translation and text issues were addressed in several different languages.
    • Addressed several issues with VLML
    • Moved various security menus items under a single menu on the front panel as well as EWS
    • Improved support for several card readers
    • Fixed several certificate issues
    • Improved disk wiping feature
    • Addressed several security vulnerabilities
    • Addressed several authentication issues
    • Fixed numerous causes of 900.30 errors
    • Fixed several "Home" screen issues
    • Improved support for large media (12 x18 and SRA3)
    • Fixed several causes of 900.80 errors
    • Fixed numerous other scanner related issues
    • Fixed numerous crashes caused by corrupt data
    • Fixed several causes of 900.43 errors
    • Fixed several causes of 976 errors
    • Fixed several Fax service errors and hangs
    • Fixed some print quality and scan quality issues
    • Made some performance improvements
    • Improved Windows 8 support
    • Made some improvements to tray linking
    • Made some Job Accounting Log ( JAL ) improvements
    • Fixed reporting on certain models that showed incorrect supply capacities on fusers and transfer belts
    • Fixed an issue with page counts getting corrupted after a replacement RIP card is installed and booted into diagnostics menu
    • Fixed audio issues with new 4.3" (109.22mm) displays
    • Added support for additional OEMs
    Fixed numerous 2.4" (60.96mm) panel issues (C746/ C748 Only)

NOTE: *An x denotes any number within a printer model series. 

** Printers equipped with the 6500e scanner option


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EC 2.3 (.P278) Release Notes (March '13) 

Functional Enhancements

Enhancement C746/C748 C792 C925 C950 X548 X746/X748 X792 X925 X95x*


AirPrint performance improvements
Added Object based toner density setting
  • Select the amount of toner savings based on the type of object
  • Types of objects: text, image, photo
Added RGB Replacement
  • Works with Power Point documents
  • Similar to Spot color replacement
Auto mono scan detect
  • Sensing mono scans and prints them as mono instead of color
  • Can adjust the sensing threshold
        Multifunction models only. 
Fax over IP is now supported when the App license is downloaded        
Include the default Custom Message in supply email alerts        
Added address support for Internal Accounts        

NOTE: * An x denotes any number within a printer model series. 

** Printers equipped with the 6500e scanner option

Fixes and Field Issues

Fix or Field Issue C746/C748 C792 C925 C95x X548 X746/X748 X792 X925 X95x* 6500e**


  • Fixed various 900.00 errors
  • Fixed a cause of 900.56 errors
  • Fixed various 976 errors
  • Fixed a cause of 982.01 errors
  • Fixed some causes of 976 Errors
  • Fixed crashes when sending JBIG2 over spotty network
  • Fixed issue recognizing the Omnikey 5127ck card reader
  • Fixed several authentication issues
  • Fixed issue trying to get DeviceInfo via web
  • Fixed XPS "Confidential Print" issue
  • Fixed UCF webpage UCF functionality on wireless cards


All Models
 Multifunction C746/C748 C792 C925 C95x X548 X746/X748 X792 X925 X95x 6500e*
Fixed 900.10 error when mismatched size when copying from ADF-A4-Long Edge        
Fixed various 900.80 errors        
Fixed a cause of 902 errors        
Fixed fax issue with blue screens when it is time to send a delayed fax        
Fixed fax hang during a power cycle sequence by resetting the modem        
Fixed black copies issue with originals placed on flatbed        
Fixed User Interface with Finnish language        
Scan to Network v3.2.21 improvements        
Fixed issue in Scan to email - recipient list not clearing after email is sent        
Improved messaging for Toner Low conditions and fixed toner yield meter/yield issue                
Fixed scanner jam issue that messes up job queue                  
Fixed Rewards Program issue                  
Fixed black line observed on Mono copy from Letter to copy to 12 x18 and SRA3 paper sizes                  
Fixed 5 second pause during mono COPY between page 1 and 2                  
Fixed issue leading to 'waste toner box full' message after the near full state is reached                  
Singlefunction C746/C748 C792 C925 C95x X548 X746/X748 X792 X925 X95x 6500e*

Fixed LED issues

Fixed 'Busy' hang during a situation where 'Remove Packaging' is displayed (C746)                  
Delayed waste toner box full message after the near full state is reached
Windows 8 issue addressed              

NOTE: *An x denotes any number within a printer model series. 

** Printers equipped with the 6500e scanner option


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.FLS Firmware Flash methods

Firmware Flash Methods (.fls file extensions) Information Recommended Use
Embedded Web Server (EWS Open your internet browser and enter the IP address of the printer. Select Settings > Update Firmware. You have network access to the printer's embedded Web server
USB utility Click here for example. Seldom used, but a good alternative flash method for USB-attached printers
USB thumb drive Click here for example. A standalone printer  without computer access
FTP Click here for detailed steps. No HTTP (EWS) access and no access to a Microsoft Windows-based computer
MarkVision Professional or the latest MarkVision Enterprise Visit MarkVision website to download the latest User's Guide and perform a search on Print Server updates or Generic File downloads. Large printer fleets
Printer File Loader
Click here for detailed steps. Macintosh users


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How to Check Your Current Printer Firmware Levels 

Obtain the Menu Settings page or access the printer's embedded web server (EWS) for this purpose.  

Option 1: Via the printer's Control Panel > Menu Settings Page

Step Action
1 Press the Menu button on the Control Panel.
2 Select or touch Reports.
3 Select or touch Menu Settings Page to start printing.

Look for the code level under “Device Information” and next to Base and Engine.

Option 2: Via the printer's Embedded Web Server (EWS)

Step Action
1 Launch your Internet browser application.
2 After http://, enter the printer's IP address.

Click on Reports.

4 Click on Device Information and locate the values next to Base and Engine.


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Still Need Help?

If you have updated firmware and your issue still persists, please contact Lexmark Technical Support information. NOTE: When calling for support, you will need your printer model/machine type and serial number (SN).

Please be near the products described in this article to expedite the support process and reduce call-back situations.


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