I bought an HP Scanjet G4000 series several years ago. Will this scanner work on an iMac? I have never installed the scanner on any computer.
Yes, the scanner will work on an iMac, but the iMac needs to have Mac OS X 10.6 installed, because for higher versions, you need to order a CD/USB with the drivers and the software.
More information can be found on the support page: http://support.hp.com/us-en/drivers/selfservice/HP-Scanjet-G4010-Photo-Scanner/3236364/model/3236365#Z7_3054ICK0KGTE30AQO5O3KA30R1