Question about HP Scanjet 5400c Flatbed Scanner

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Loss of power

I was using the 5400c when it went blank, like the power cord was unplugged. I check all connection and they are good. Does this machine have a fuse or reset? I have not been able to find it. I would really appreciate any suggestions or where I may send it for repairs. Thanks a million. Angeldog

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  • Sarbanharble Nov 26, 2007

    I have the exact same problem.  I'm using a mac, but I've tried it on a pc as well.  The funny thing is, the scanner worked fine until I installed the driver.  Now it won't turn on at all.

  • Anonymous Sep 01, 2008

    I have the same problem

  • Bugee Jan 18, 2009

    One day, the power on the 5400c scanner was gone. Checked and rechecked outlets, etc., jiggled cable etc., nothing... I would rather get a new power supply unit than repurchase a new scanner.. any suggestions?

  • Anonymous Feb 20, 2009

    It's dead! It won't start up. It's plugged in & everything is connected

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I have a similar scanner, scanjet 5470c which is using the same power supply as 5400c and 5490c
2 weeks ago the scanner stopped working, yesterday i checked the scanner and found out that there was no power (12V)
the power module (black box) going into the 220V is a plastic box without service possibility. I took a screwdriver and a hammer to open the box. Inside the box i found a lot of electronics and yes a Fuse aswell. I did not have spare fuses, so like all bad boys i replaced the fuse with a wire, and guess what? .. yep I blew several main fuses in the house and now have a burned-out power supply.
the power module is still available at the HP Parts Store the part number is C8517-84201 i see a list price of 23 EUR

Before a buy a new power module I will first test the scanner with a spare 12VDC and see if he still works.

I will come back and tell you if it works...

Posted on Dec 23, 2007

  • Patrick Van Deynse Dec 27, 2007

    I've done it, using an adjustable power supply all i needed was 12VDC - 2Amp, the power connector going to the scanner is a 4 pin mini-DIN male, so i've ripped of the cable from the original bad power module, cable has inside 2 wires one black one white and a shielding. Black and schielding are connected together and are going to the minus, the white one is going to +12V

    guess what? .... my scanner is working again

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I have had the power go out on my HP 5400c scanner, It was the power supply. What I had found out or was told by the parts person that sold ne a new one was if you leave them pluged in the will eventually burn out. It took about 3 yr. to o that before I had to replace it.

Posted on Dec 18, 2008

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Dear sir:
My scanjet HP 5400c was working before and was not in use for sometime. Then I pressed the on buttom and there was no power light at the machine. With no apparent power to the unit I check the power cord voltage and no response in the test meter. Is the power supply cord at fault or something internally went wrong? Is there a reset button or fuse to change or power supply transforme problem? Please help.
Thanks.


Posted on Nov 24, 2008

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power_module.gifpower_cord.gif

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