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  1. #1
    New Lounger
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    I am running Win7 32 bit on a desktop and up until a couple of weeks ago my sleep mode worked perfectly and then it quit working at all. It will not sleep on it's own or if you try to put it to sleep manually it will instantly wake. I researched on the net etc. and tryed a bunch of stuff and nothing worked, but I finally discovered if I unplug the usb cable from my printer it will work. Turning the printer off doesn't work but if I unplug the cable it works. I have all the usb ports set to not wake the computer etc. The thing is everything worked and now it doesn't. I tryed uninstalling and reinstalling the printer to no avail. Does anyone have any ideas is this a printer problem or computer problem.

  2. #2
    Plutonium Lounger Medico's Avatar
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    Mike, Welcome to the Lounge.

    A question first although I think I know the answer, do you have any print jobs spooled to print, or perhaps scheduled to print? I assume probably not. It almost sounds as though there is some expected activity coming from the printer and thus Windows can't sleep because it is waiting for something. I see turning the printer off does not solve the problem either. Does plugging the printer into all the various USB ports give the same problem, or perhaps are there any USB ports that do not show the symptoms, i.e. some monitors or keyboards also have built in USB ports, or PC's have both front and rear USB ports? Is this USB 1 or 2?
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  3. #3
    3 Star Lounger jockmullin's Avatar
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    Hi Mike

    I have seen this problem on a couple of systems, and in both cases it turned out to be a wireless mouse. It never occurred to me to try unplugging other USB devices, but the fact it makes no difference whether the printer is on or off suggests it may be a RF-related problem where the printer cable is acting as an antenna. The printer cable should have 1 or 2 chokes on it to prevent this.

    Having said that, I do think Ted's suggestion is a more likely scenario. If not any print jobs, there may be a printer monitor service trying to query the printer status periodically which is triggering the wakeup.

    Jock

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  5. #4
    New Lounger
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    Thanks for the replys.

    Yes I did check for spooled print jobs and I did try a different port although not all of them. I like the idea about the printer cable acting as an antenna because this hardware setup did work until a couple of weeks ago and my cable is fairly long. These chokes are they something you can add on or do I have to get a new cable or possibly put the printer on the printer port?

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