Jim has an HP OfficeJet 6700 printer and he's having trouble printing in color now that he's upgraded to Yosemite. Leo says that HP probably has an updated driver for it. He should click on the drivers button at HP.com and it'll give him the drivers for his OS X version. He should just be sure he gets the driver that's compatible with OS X Yosemite. It's up to the manufacturers, especially with older hardware, to update the drivers and sometimes a software update will simply break connectivity.