hp deskjet 3550

[Adobo]

Hello experts. I have a problem with my hp deskjet 3550. The printer is working well past few days. Right now when I tried to turn it on, the power always turns off. It will blink for a while then off again. I already check on the cables its ok. What seems to be the problem.

I'm thinking to troubleshoot the hp's ac power adapter. But I'm confuse on how to do it. I saw the label at the back +15V / symbol chassis ground / +32V. Using a multitester.

Thank you very much and waiting for your expert advise.:)

[MichaelTech]

Yes, you are right in suspecting the P\S. If you bought this at a reputible store, take it in and ask to try another P\S.
Also, the cable end you plug into the unit may just be loose.