Možná zkusit HP LaserJet Fix Scan Utility.
Fixes several "Can Not Communicate", "Device Not Connected", or "HP Imaging Device Could Not Be Initialized" messages when scanning.
http://h20000.www2.hp.com/bizsupport/TechSupport/So ftwareIndex.jsp?lang=en&cc=us&prodNameId=1140779&pr odTypeId=18972&prodSeriesId=1140784&swLang=8&taskId =135&swEnvOID=228