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Old HP DeskJet/ScanJet Power Supplies Failing?
[null] asks: "Has anyone experienced problems with HP DeskJet printers (mostly 600 series) or ScanJet 4100C due to the power supply going bad? I've just got back from a friend whose scanner is currently toast as the power supply decided to put out something other than the 30VDC/400mA/14W it is spec'd for. I'm extremely suspicious because I have a DeskJet 660Cse with the same power supply brick that was working fine up until a month ago when it would go from printing fine to printing several sheets of garbage out of any given print job. I checked it with my tester and saw it giving out 37.5VDC (25% over spec). This link from HP PartSurfer lists the HP products using this power supply and has a picture. This power supply usually featuers a model number of C2175A molded on it. My friend's supply was listed as made by Lucent and mine is by NMB, causing me to wonder if the design itself is possibly defective. Google is not being very helpful in finding people with similar problems, and we are talking about pretty old hardware here that people would probably throw out rather than bother trying to order parts for. HP also has recalls on power supplies for DeskJet 800/900 series and some PhotoSmart 1x00 series printers. How about it, anyone else had problems?"
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