Lexmark pro900 will not print firmware mismatch

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This is usually caused by a fonts mismatch (especially when printing from a web page) and the machine doesn't know what to do with the print job. Quick fix is to delete the current job from the print queue and restart the printer. Permanent fix is to download the latest firmware from http://support.lexmark.com and latest print drivers. Instructions on how to do firmware come with the download file. Make Your Selection

A firmware update for your model addresses print quality issues. Please visit the Lexmark website to download and install the Lexmark Pro900 Series Firmware Update.
After successfully updating your printer, do a deep clean function. From the printer touchscreen panel, touch Ink Levels > More Options > Deep Clean Printhead. This will help clean the nozzles from possible clogs and dirt.
Then try to print a document again to verify that the problem is fixed.
If that doesn't help, please contact Lexmark Technical Support Center for further assistance.

A firmware update for your model addresses the print quality issues. Please visit the Lexmark website to download and install the Lexmark Pro900 Series Firmware Update. After successfully updating, run the Deep Clean Printhead function on your printer. Press the Ink Levels > More Options > Deep Clean Printhead. Then, try to print a document again to verify that the problem is fixed.

There is a firmware update for the Lexmark Pro900 Series printer that addresses print quality issues. Please visit the Lexmark website to download and install the Lexmark Pro900 Series Firmware Update.
After successfully updating your printer, try to print, scan or make a copy again to verify that the problem is fixed.
Should the problem continue, it might be a printhead problem. Please contact Lexmark Technical Support Center for further assistance.

A firmware update addresses a number of known issues for the Lexmark Pro901 including print quality problems. Please visit the Lexmark website to download and install the Lexmark Pro900 Series Firmware Update.
If the problem continues, it could be that your printhead is experiencing the printhead problem that is affecting a limited number of our devices. I would highly recommend you contact Lexmark Technical Support Center to further diagnose the problem.

Are you having some issues with your printer? Can you give me more details about any issues you're experiencing on your printer?
If you meant to say that your printer is not printing "color" or "black and white", make sure your firmware is updated. Please visit the Lexmark website to download and install the Lexmark Pro900 Series Firmware Update.
The update helps fix print quality issues and will give you a highly reliable print system. If this does not help, please contact Lexmark Technical Support Center for additional assistance.

The statement below applies to 2009 Lexmark products: S300, S400, S500, S600, Pro200, Pro700, Pro800 & Pro900 Series

If your device is displaying a 'printhead error' on the hardware and/or you are suddenly experiencing a print quality issue, please contact the Lexmark Technical Support Center at 1-800-539-6275 or point your browser to http://bit.ly/lFKDzs for online technical assistance.

Lexmark agents are prepared and able to help diagnose and resolve your issue. This may involve updating your printer firmware and/or replacing the printhead for your printer, at no charge to you, our customer. Installation is quick and easy for any customer to perform.

Your satisfaction with your Lexmark devices is our primary concern, and we are confident and committed to quickly correcting these issues.

The firmware update for the Lexmark Pro900 Series will help fix the problem where the printer is having trouble waking up from power saver mode. You can download and install the update by visiting the Lexmark website at http://bit.ly/p905fw.

It could be a software issue. Try to uninstall the existing Lexmark Pro901 driver from your desktop pc by going to Start menu -> Programs -> Lexmark -> Pro900 Series -> Uninstall Lexmark Pro900 Series. Reboot pc when prompted.
Now, check your Windows 7 if it's running on 32-bit or 64-bit by going to the Start menu -> right-click on Computer -> Properties. Take note of the System Type.
To reinstall, download the Lexmark Pro900 Series driver using the links below: - Lexmark Pro901 driver for Windows 7 32-bit - Lexmark Pro901 driver for Windows 7 64-bit
Download, execute the file and follow the instructions on the software.
I hope this information has been helpful. Thanks.