User Guide
Page 36
...servicing routine, a nozzle health sensor checks the printhead nozzles for an extended period of time it can periodically perform self-servicing routines. HP Photosmart Pro B9100 series User Guide 33 The printer performs a self-servicing routine if the printer is not covered by the HP warranty. Leave the printer on HP... recommends that you always leave the printer plugged in...
...servicing routine, a nozzle health sensor checks the printhead nozzles for an extended period of time it can periodically perform self-servicing routines. HP Photosmart Pro B9100 series User Guide 33 The printer performs a self-servicing routine if the printer is not covered by the HP warranty. Leave the printer on HP... recommends that you always leave the printer plugged in...