A printing device can run into a lot of problems throughout its course. This is why it is important to know how to troubleshoot any of the possibilities that can cause a problem with the printer. If you are using an HP ScanJet, the main thing to know about an HP ScanJet 5590 troubleshooting is that there might be error messages detected early on. Most of the time, there might be a problem with the HP ScanJet 5590 printer ink which may not be compatible. In other cases, running a full scan on the printer can figure out the problem.