"all in one" it is possible during boot that the system is trying to install the drivers for the other functions and don't find them and finally give up.
You should probably remove the printer drivers from add/remove and then go up in safe mode and get into device manager to see what it shows for printers and it's other functions. Remove all of them. Then unplug the unit from the USB port. Reboot in safe mode and check Device manager to see what it shows re these devices [shouldn't be any] and what it shows for the USB.
Usually these devices should not get plugged into the USB port until the drivers have been installed.
I hope that Toni Hackler checks in here to add her thoughts.
Note that you didn't tell us what operating system you are using. Knowing that may allow other troubleshooting inputs.
I am a weak crutch to lean on and hope that by replying I will bring your post to the top of the page and you get additional help.
I hope someone can help with this. I have looked everywhere on the Net and have found nothing about it.
I am wondering if anyone has ever had a problem with a PC taking ten minutes or longer to boot up with a HP printer attached to the USB port.
I have a Dell Dimension 2400 series PC running Windows XP Home. It is a year old.
I also have a HP 2175 or something on that order. It is an all in one.
Here is the problem. First, without the printer attached to the PC through a USB port the PC boots up just fine. But if I have the Printer plugged in The POST runs fine but just before the OS loads the computer hangs for about 10 minutes and has just a cursor blinking in the upper left hand corner. Eventually it will boot into windows but it takes forever.
I never get any warnings from the system saying that there is anything bad with the printer or the USB port but when I look in the device manager in Windows with the printer plugged in I have a "USBnull HPO08" by the USB ports???
If I look in the "show printers" window on the system I can see the printer and it says it is online and ready??
Does anyone have any idea why this is happening??