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Lexmark X466

Lexmark X466

900.00 or 900.30 Errors Prevent Fax Forwarding on the X46x, X65x, X73x, and X86x Series MFPs

What you will see

An observed 900.00 or 900.30 Firmware Error resulting from the MFPs inability to fax forward to e-mail or FTP servers.

This is evidenced by the following behavior:

  • -The sending fax machine receives confirmation of successful fax transmission.
  • -Fax Jobs will be received but not forwarded to respective e-mail or FTP destinations.
  • -Power cycling or turning the device off and on does not eliminate the error.
  • -An observed increase in the number of pending fax jobs in the fax queue.

900 or 900.30 Errors

One of the following errors will occur:

900.00 Firmware Error Process Qsrc_2:1892 caught SIGSEGV addr=0 nip – caused by a color fax not containing the properly designated number of lines in the JPEG header;


900.00 Firmware Error .. HostSend.InOSed……failed to allocate mem from destination pool – caused by the sender not sending the proper number of EOL markers.

if you seek additional information on 900.00 errors.

Affected Products

Any of the following MFP Series:

  • - X46x* Series
  • - X65x
  • - X73x
  • - X86x

*Anx denotes any number within a specific model series; e.g., X462, X464, X466, etc.

Suggested Remedy

A known firmware update addresses this issue.

Firmware update steps:

  1. Obtain the MFP's current device firmware level.

  2. Identify fix firmware for your MFP.

  3. Look for the existence of any DLEs or special codes.

  4. After calling Lexmark to obtain the firmware, follow any of the update procedures.

Step 1: Check Device Firmware Levels

Embedded Web Server (EWS) Method:

  1. Open the printer's web page,

  2. Click on Reports.

  3. Click on Device Information.

  4. Identify value next to Base.

Optionally, print the Menu Settings Page from the device. To do this, press Menus > Reports > Menus Settings Page and look under Device Information for the equivalent Base code value.

Step 2: Identify Fix Firmware

Contact Lexmark Technical Support to obtain .P316 or .P317 software code.

X46x Series MFPsX65x Series MFPsX73x Series MFPsX86x Series MFPs
LR.BR.P316 or greaterLR.MN.P317 or greaterLR.FL.P316 or greaterLP.SP.P316 or greater

Step 3:DLEs and Special Firmware

Certain functions or applications may require special firmware. Warning! Make this information known to the call center agent and "do not" attempt to update the MFP firmware if the format of firmware number differs greatly from what is seen in the table just viewed.

Any MFP with any one of these following downloadable language emulators (DLE) may require special firmware versions:

  • Bar Code
  • IPDS
  • Printcryption
  • Forms
  • Prescribe
  • Imagequick

Click here

for an example.

Step 4: Need help updating firmware?

After you have contacted Lexmark for this firmware, extract the .fls file to a known easy-to-find directory, and for an extensive list of the firmware update procedures.

Recommendation: The printer's web page has a Update Firmware feature that is easy to use.

Still Need Help?

Please contact Lexmark to obtain firmware or seek additional assistance. NOTE: When calling for support, you will be asked for your printer model type and serial number (SN).

Please call from near the computer and printer in case the technician on the phone asks you to perform a task involving one of these devices.


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