HP Printer not recognised

  dandruff 14:27 07 Feb 08

I am running vista and have a hp deskjet 840C printer,the printer works ok but when I switch it on I get USB device not recognised,if I switch the printer on/off 2 or 3 times it works ok ,the computer knows where the printer is but wont recognise it, can anyone help please?
Also how much does ccleaner cost to buy?

  NewestRoyWidd1 14:48 07 Feb 08

To answer the last part of your query,CC Cleaner is free click here the printer problems,be patient,I'm sure you will get the answers/solutions from other forum members.

  sunny staines 15:23 07 Feb 08

reinstall any usb and printer drivers make sure they are vita ones.

  Marko797 15:39 07 Feb 08

I have a deskjet 940c which I tried to connect to my wife's vista laptop.

After going onto hp official driver site it was apparent there was no vista usb driver, although vista comes with hp940c print driver which is not usb. The fact that there is no parallel port connection (I think that's what it's called) on the laptop means we can't use the printer via her laptop. It's therefore connected to the xp desktop and works fine on xp usb driver.

All this, unless someone can advise differently?

  Totally-braindead 15:46 07 Feb 08

Marko797 according to HP the 940c driver is built into Vista so its meant to install automatically click here& click here

According to HP the 840c is the same. I would do what the others have suggested clean out all printers and reinstall from scratch.

  weatherstation 15:49 07 Feb 08

I have found the HP (hp.com)web site very useful for sorting problems. you can even have a on line chat if needed. You just need to look at all the various options, and I am sure you will resolve your problems

  Marko797 15:51 07 Feb 08

I stand corrected!
However, when I did plug in the printer on usb (a while ago) it did recognise the printer if I recall correclty, but wouldn't print at all. Maybe I'll give it another shot.
Thnx for putting me right.

  Marko797 16:15 07 Feb 08

it worked. Tried via the network but unsuccessful on this. Error 0x000006be. Don't want to hijack the thread so will leave it there. Thnx again TB...I just need another lead now into the printer.

  Totally-braindead 16:19 07 Feb 08

I have to point one thing out. At the bottom of the page on the HP website it mentions that some specialist things might not work. Now for me and my Epson 680 what that meant was the printer would run perfectly and print fine but the program that kept track of how much ink you had left didn't work and wouldn't work under Vista.
Only reason I mention this is HP might be the same in that you might find some bits don't work.
Which is bloody annoying I might add.

  dandruff 18:13 09 Feb 08

Still no luck but will keep trying

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