HP 9100C Error Code 404

[Bgrumney]

When I go through the Extended Self Test (EST) I get an error code 404 for the scanner. How do I correct/clear that code? Does it have something to do with the scanner bulb?

 

[Tmagic650]

This is called an HP 9100C Digital Sender. Was it built in 2004?

 

[Bgrumney]

Yes it was