My HP Scanjet 5400C Scanner has decided to stop working. The 12 volt mains transformer feels cold and no light comes on the scanner. It appears that the transformer is US. Where can I buy a replacement

You need to log in as an administrator. Copy and paste the following link to your browsers address bar at the top.

http://windows.microsoft.com/en-US/windows7/How-do-I-log-on-as-an-administrator

Hope that helps
Bye Ian

You can download the HP scanner drivers from their supportWEB site. Please click on this link and select your model scanner to download:- http://welcome.hp.com/country/us/en/support.html

you probably need to contact Hp directly. there is now windows 7 drivers on their website and I have heard people getting it to work with the XP drivers on the 32 bit version, but the 64 bit version is a whole new beast. I would suspect you are going to be shopping for a new scanner
sorry....

I’m happy to help further over the phone at https://www.6ya.com/expert/thomas_b83e841f114394f4

For that scanner you will need AC power module, in this link you can see power modules for that scanner:

https://hardtechgroup.net/catalog/index.php?manufacturers_id=9&sort=2a&filter_id=61&language=en&osCsid=rpk6qsosuq7prj7ko7s99fehc0

hi

go to folowing link you will find your solution for scanner

http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&dlc=en&cc=uk&docname=c00027908

Hi timkin
Click on the link
http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?product=59064&lc=en&cc=us&dlc=en&lang=en&cc=us

You will see the drivers there.
If your O/S is not listed there, Hp does not provide a driver
Good luck
luciana44

check power cord, usb cables, & fuse.

http://fixunix.com/hewlett-packard/101142-scanjet-5400c-dead.html

following this link i've found resetting instructions for this scanner:


1.. Disconnect the USB cable and the power cable from the
scanner. Make sure the power cable is still connected to the
power source.
2.. Press the Scan and Email buttons at the same time, while
plugging the power cable back into the scanner. The scanner will
enter a Demo Mode.
3.. Press the Cancel button on the scanner to start the test.
4.. To end the test, disconnect and reconnect the power cable
without holding the buttons down.


I've had exactly the same problem with my scanjet 5400c (blue distorted images) but after resetting the scanner (see instuctions posted above) the problem was fixed

You may want to try this web page that tells you how to get the HP 5300C
working in Vista. It works fine on HP 5400C as well.

'Tutorials - How to get your HP Scanjet 5300c working in Windows Vista'
(http://www.pixel2life.com/publish/tu...windows_vista/)

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...