900 Firmware Error Kernel Crash when the printer is connected to certain networks

Issue description

A 900.xx firmware error follows the connection of the printer to certain networks; these networks where identified to have transmission frames containing over 1500-byte packets, which exceeds the limit set by the IEEE 802.3 standard.

Solution

1. Disconnect the printer from the network.



2. Perform a Power- On Reset (POR).



3. Perform a copy or print an internal test page.



4. Clear ALL jobs from all print queues.



5. Reconnect the printer to the network.



6. Does 900.xx return immediately?

   • Yes: Contact Lexmark Technical Support.
   • No: Perform additional testing and attempt to answer the following:
   

   1. Does the error occur only when performing a print job?

      • If Yes, then identify the following:
      • the driver language, e.g., PS, PCL, XPS
      • the driver type, e.g., UPD, System Driver
      • the driver version number (#)
      • the exact print job
      • the software application used to generate the print file
      • the file type, e.g., .ps, docx, .pdf, .xls, .prn, .jpg, .gif...
      • If No, then identify the job type, for example, copy, scan-to-function, or name of the solution software
   

   2. If the firmware‑level is not current, update the firmware.