First Case (Some times can’t printout, No USB Network Print Adapter connected)

Please use latest driver from HP Website as below link to improve printing task.

HP LaserJet Hostbased Plug and Play Basic Driver Version 20080418 (3.41 MB)

http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=bi-55240-2&lc=en&dlc=en&cc=us&product=3435684&os=228&lang=en (Same as HP Customer Care Support given)

Or full driver as below link (same version)

HP LaserJet Full Feature Software and Driver Version 5.0 (194.04 MB)

http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=bi-54963-2&lc=en&dlc=en&cc=us&product=3435684&os=228&lang=en

After complete install, please check driver version by go to Printers and Faxes and open Printer Properties then click on About tab.

Version of driver it should be 20080418.

Second Case (Some times can’t printout, connected USB Network Print Adapter)

Recommend to install latest software of USB Network Print Adapter and driver of printer as below link.

HP USB Network Print Adapter Software/Drivers   Version 1.4.4

http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=mp-54589-2&lc=en&dlc=en&cc=us&product=3368781&os=228&lang=en

HP LaserJet Hostbased Plug and Play Basic Driver Version 20080418 (3.41 MB)

http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=bi-55240-2&lc=en&dlc=en&cc=us&product=3435684&os=228&lang=en

Or full driver as below link (same version)

HP LaserJet Full Feature Software and Driver Version 5.0 (194.04 MB)

http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=bi-54963-2&lc=en&dlc=en&cc=us&product=3435684&os=228&lang=en