Overview
An “Invalid Firmware” error appears on the printer's operator panel.
Troubleshooting
Steps | Actions |
1 | Leave the printer powered on for at least ten seconds with the error message showing on its screen. |
2 | Then power off the printer for at least another ten seconds. |
3 | Power it on again and see whether the error has cleared. If issue persists, proceed with the steps below. |
4 | This issue can be due to an older level of firmware; please update the firmware to the latest version. |
5 | Download the latest firmware code.Go to Lexmark Support website. Click the Support & Downloads link on the left-hand pane. Type your printer model inside the “Search by Product or Software Name” box, and then hit Select. Example: Lexmark CS310 or CX310. Click the “Downloads” tab and check the latest firmware version. Click the “Download” button and save the file. Make a note as to where you have the files saved.
Note:The downloaded ZIP file should contain a text document (Update Instructions) and an “.fls” file (actual code).
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6 | If this issue occurs again or if you are having difficulties doing the code update, please contact Lexmark Technical Support for other troubleshooting suggestions. |
Contacting Lexmark
Please contact Lexmark Technical Support if you need additional assistance.
NOTE: When calling for support, you will be asked for your machine/model type and serial number (SN). If you need help locating your printer's model type and serial number, How to Locate the Serial Number, TLI, Config ID, and Machine Type on a Lexmark CS310, CS410, CS510, CX310, CX410, and CX510.
Please call from near the printer in case the technician on the phone asks you to perform a task involving the printer.
LEGACY ID: SO7377