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Amazon.com: Accessory USA® 12V AC Adapter for HP ScanJet 0957-2291 2400 3500 3670 3690 3770 3800 Scanner Power Supply PSU : Electronics
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Amazon.com: MyVolts 12V Power Supply Adaptor Compatible with/Replacement for HP Scanjet 3770 Scanner - US Plug : Tools & Home Improvement
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Amazon.com: MyVolts 12V Power Supply Adaptor Compatible with/Replacement for HP Scanjet 3770 Scanner - US Plug : Tools & Home Improvement
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Amazon.com: MyVolts 12V Power Supply Adaptor Compatible with/Replacement for HP Scanjet 3770 Scanner - US Plug : Tools & Home Improvement
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