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#21
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Don't know if anyone's still having this problem, but this worked for me, and was actually quite easy (and worked for both my HP LaserJet 1100 AND Canon Pixma iP6000D, neither of which had x64 drivers). When installing my printers as network printers, the "Windows Update" option for drivers was not showing up.
I plugged the printer into my Win 7 PC. Everything installed fine. I then moved teh printer back to its network position. Added the printer as a network printer, just chose the Generic -> Text Only driver (it doesn't matter which you choose). Then I right click the printer and selected Printer Properties. Under Advanced, you can either use the dropdown menu under Driver to select the proper driver, or click New Driver... and THEN the Windows Update option appears.
I did this and everything is working flawlessly.