• Lexmark_C792_P244b-E141_FWUpdate.exe
• Non-Windows environments: LHS2.HC.P244b.ppccal.HC.E141.ppccale.fls

• LHS1.HC.P244fb.fls (Individual Base)
• LHS1.HC.E141.updeng.fls (Individual Engine)

• Base: LHS2.HC.P244b
• Engine: LHS1.HC.E141E

• Firmware update utility package – ~175,721 KB
• Engine – ~2,848 KB
• Base – ~126,167KB

• If your printer's firmware level is already at the latest firmware code available... 
• If you notice special code or the presence of; e.g., PrintCryption, IPDS, Barcode and Prescribe...
  

  Click here for an example "Menu Settings" page that illustrates a printer with an installed DLE option card.

Primary Field Concerns

Solutions (Embedded Solutions Framework)

• Fixed installation procedure.
• Cropping and alignment issue
• Improvements with Scan to Network Premium
• Several performance improvements
• PCL/PS emulation issues:
  • Incorrect or garbage print
  • PS performance issue
• UCF settings corruption
• MS Sharepoint compatibility
• MPS reporting improvements
• Image orientation can now be changed when an optional bin is installed.

• Address issue with audio
• Fix: Issue with VLML
• Fix: Numerous security issues (PINs, expired user sessions, delete authorization modules correctly)
• Updated Eco-Setting Application for Single Function Printers
• Improved CAC support
• Improved User Interface (Control Panel) workflow settings
• Solutions Function Access Controls (FACs) for workflows now appear in EWS
• Improved user interface button labels
• Changed Business Card scaling

Service Errors Addressed

Managed Print Service (MPS) and Network

• 900.00 errors related to the following functions:
  • PKCS11 (Public Key Cryptography Standards #11)
  • Job Accounting log
  • Random 900 errors
  • PCL/XL Incorrect media selection

• 900.31
• 900.40
• 900.43
• 900.57
• 900.68
• 976

• Fix: Issue withy Job Accounting and Quota App
• Improved MPS SNMP data reporting
• Improved Bonjour support
• Fix: Numerous issues that cause printer hangs
• Updated Embedded Web Server (EWS) images
• Expanded and improved information returned via Web Services
• Added port 456 for SMTP support

Security and User Interface

Printer PDL Emulations and Other Miscellaneous

• Fix: Memory leak issue
• Fix: PKCS11 (Public Key Cryptography Standards #11)
• Log hostname / ip address for all processes
• Upgrade openSSL
• Now use SHA-256
• Fix: Cross-site scripting vulnerability
• Fix: Numerous security configuration issues
• Fix: Translation issues
• Fix: Some blank screen issues

• Fix: Numerous undefined error conditions
• FIx: PDF printing issues via USB drive
• Fix: XPS printing issues via USB drive
• Fix: Print Permissions
• Fix: Offset stacking issue

Functional Enhancements

Security

• Added an HD Encryption option to the Initial Setup Wizard
• Added support for smart cards / PCKS11
• Added item to "clean" device NVRAM for device disposal to the Configuration Menu
• Enabled HD Automatic Wiping by default. (Users upgrading to EC1 will have to set this manually.)

Network and Notifications

• Beacons are enabled for all screens, not just Status / Supplies
• Added support for the latest Wi-Fi Protected Setup (WPS) wireless ISP option card

Solutions

• Added support for widgets and workflows
• Widgets and Workflows can be protected by per-widget/workflow Function Access Controls (FAC).
• Solution software (eSF) applications can now be protected by application-specific FACs.
• Added support for the User Quota™ application

Other

• Added display support and keyboard entry for DBCS languages: Simplified Chinese, Traditional Chinese, Korean, and Japanese
• Sleep mode is now available during some system intervention situations
• User interface performance improvement
• Volume can now be adjusted by pressing the backspace key from the Home screen
• New - Implemented Numpad Assist mode

Other Improvements or Fixes

• Translations
• Device hangs
• Job Accounting
• USB Direct access
• USB device support
• Support for internal ISP cards
• Improved jam error display locations and help
• Removed Hole Punching for Legal paper

Error detection enhancements or fixes

Errors

• "39 complex page" error
• 31.xx - "Missing or defective <color> cartridge" error message after waking up from sleep mode
• 110.25 and 110.26 Service Printhead errors
• 121.03 and 121.13 Service Fuser errors - If fuser is removed when the side door was closed

"Paper jam" errors:

• Updated paper jam codes: 200.40 --> 241.40; 200.49 --> 241.49
• 24x.38 - Possible paper jam when the 2000-Sheet High Capacity Feeder side cover is shut while the elevator is moving up
• 24x.48 - Possible paper jam after the inserting tray into the 2000-Sheet High Capacity Feeder
• 456.36 - Paper jam with a Staple Finisher. (non-recoverable)

• 432.40 - Increased time out to avoid error on the Five Bin Mailbox output option
• 900.00 Firmware Error during low memory conditions

"Service Engine Software" errors:

• 913.11
• 913.44
• 914.37
• 915.08
• 915.30
• 915.32
• 915.92
• 938.06, 938.07, and 938.08 errors
• 938.28 Service System Electronic errors instead of expected 125.13 error with the "Transfer Module" belt
• 990.01 Service HTU error when attempting to enter Sleep mode during a Color Adjust calibration

Printer 

• Fix - Potential remote memory corruption while entering Hibernate mode
• Fix - Hang that could occur after canceling a print job or stopping the printer
• Fix - Not able to access fuser memory device
• Fix - Busy hang that should have been a paper jam
• Fix - Unsafe time for remote memory communication
• Support EC1 option Drawer / Feeder hardware updates
• Added new detection capabilities (algorithm) to a paper path sensor for increased media-length measurement accuracy
• Update for Tray 1 hardware updates
• Added new detection capabilities to output bin full sensor to detect paper jams

• Fix - Printer not able to enter Sleep mode
• Fix - "Busy" reporting after exiting Sleep mode
• Fix - Blank (black) op panel screen if the engine declared a service error while in Sleep mode
• Fix - Engine detects the wrong Tray/Drawer media levels if the media level was changed while in Sleep mode
• Directional Lights on paper feed options to not operate correctly after exiting Sleep mode
• Improved Sleep mode entry response time

Print quality and performance

• Fix - Updates to prevent a ghost print artifact
• Fix - "Color Adjust" calibration wasn't being injected before a print job when printer was busy printing

• Potential margin issue avoided after the Transfer Module belt was replaced
• Top margin in 1200 dpi Print Resolution mode consistent with 4800 CQ Print Resolution mode
• Fix - Potential print defect (back-side contamination)

• Improved color alignment
• Enhanced "Color Adjust" settings
• Improve dry environment printing
• Correction to avoid print defect that could occur after a cartridge is replaced
• Improved print quality consistency with relation to temperature and humidity

• Reduced Time To First Copy (TTFC) by starting printing process before scanning is complete under certain circumstances
• Time To First Page (TTFP) more consistent.
• Reduced Time To First Page (TTFP) from Sleep mode with attached input and/or output feed options
• Improved media feeding reliability
• Improved banner feeding reliability with media longer than 14 inches or 35.6cm
• Improved Tray 1 and Multi-purpose feeder (MPF) feeding reliability

• Throughput when printing custom / universal length media
• Throughput with vinyl labels (normal weight)
• Throughput when delays between print pages were sufficient to pause the printing process, but less than 15 seconds apart

General fixes and improvements
 

• Improved accuracy of toner coverage reporting for low coverage (< 20%) print jobs. Note: This update is only available in LHS1.HC.E129a [EC1.1] (or later) releases
• Incorrect cartridge toner level reporting.
• Not able to detect toner cartridge change

• Flashing Directional Lights on the base printer would get out of sync with paper feed options.
• Directional lights not activating for obstruction jams (jams caused by media being left in the paper path after a previous jam or service error)
• Directional lights on paper feed options to not operate correctly after exiting Sleep mode
• Directional lights behave incorrectly when replacing a Transfer Module belt
• Improved directional light behavior for input paper feed options to provide constant lighting when removing paper jam
• Improved directional light behavior for the Horizontal Transport Unit (HTU) cover; this light was turning off after the attached paper feed output option was undocked
• Directional Lights to activate in the wrong paper feed option
• X792 - Disabled the output bin cave Directional Light  when a paper feed output option is attached
• Improved Directional Light feedback for clearing media after an MPF paper jam
• Improved Directional Light feedback for clearing media after paper jams that require the user to open the fuser latch

Diagnostics fixes or improvements
 

• Fix – Diagnostics test for paper feed output options
• Fix – Corrected a problem declaring proper service error if an unsupported controller card is detected
• Fix – Corrected electrical problem in transfer module belt causing 938.28 Service System Electronics error instead of the desired 125.13 error
• Fix – Printer to report a 31.02 error instead of the desired 40.70 error
• Fix – 125.08 error if the Transfer Module belt is missing when the machine is powered up instead of the desired "83.xx Transfer belt missing"
• New decreased delay before declaring an error in the rare circumstance of a shorted cartridge communication bus
• Improved fuser error detection algorithm to provide a more specific error code
• Updated paper jam codes: 200.40 --> 241.40; 200.49 --> 241.49

Click here to download the latest firmware package.

Microsoft users

Use the .exe* version of this file. Note: Requires a USB or network connection to the printer.

Macintosh users

Use the .fls version of this file, and you will need the PrinterFileLoader application also included in this download package. 

Other operating systems

Use the .fls version of this file and see update methods section below.

Alternative download location

Go to http://support.lexmark.com/printerfirmware and enter keycode c792 to download individual base/engine .fls firmware files.

See update methods below for additional firmware update instructions and make sure that you send both .fls files to the printer if not using the combined base/engine code file.

Contact Lexmark Technical Support

Contact Lexmark Technical Support

Contact Lexmark Technical Support

Look for the code level under “Device Information”. 

Click on Reports.