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Solution 3: press the on button more slowly, Solution 4: contact hp to replace the power supply, Solution 5: contact hp support for service – HP Photosmart C4680 All-in-One Printer User Manual

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Solution 3: press the on button more slowly, Solution 4: contact hp to replace the power supply, Solution 5: contact hp support for service | HP Photosmart C4680 All-in-One Printer User Manual | Page 54 / 135 Solution 3: press the on button more slowly, Solution 4: contact hp to replace the power supply, Solution 5: contact hp support for service | HP Photosmart C4680 All-in-One Printer User Manual | Page 54 / 135