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Star TSP Printer keeps changing USB Port when unplugged and plugged back in

Posted on 2011-09-16
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Last Modified: 2012-05-12
Hi;

A client has a star USB printer which any time it is unplugged and plugged back in either creates a new copy in printers and faxes or if it is the same copy it changes the USB port on which it is connected.
It has gotten to the point where I had to change the host because I can't seem to find which port it works on. Let me explain. If the first working copy printed on USB 001 the new copy will connect to port 002 but it will not print unless I manually change the port to 001. Or it may not create a new copy however the port will still change to 002 and I have to manually change the port back.

Recently all of the copies were removed from the machine by another tech so now it does not print at all because I have no idea which port it actually works on. I need to put it back to the original computer and have it work there but I also need to force it to only use one port.

The machines are running Windows XP SP3

Your assistance will be appreciated.
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Question by:mavcom
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Drivers are normally installed on a specific usb port, when you plug the same device in another usb port the operating system must install the printer drivers for that specific usb port. So let say if you originally had the printer plugged into the usb port 1, the os will install the printer drivers to that port, if you unplug the printer and plug another usb device into port 1 then the os will install drivers for this new device and that usb port will be tied to this new device. If you unplug this new device and replug in the printer into the usb port 1 you will need to reinstall drivers for that printer tied to this port. If you plug the printer into another usb port lets say port 2 the printer will have to install drivers tied to this port, this is why you will see copies of the same printer, when you open the view to see which printers are installed. It is always best to keep the one usb port to be used by the printer only. This will avoid the confusion of finding which usb port the printer works on. For example if you installed the drivers for this printer on usb port that is right behind the nic plugin, tell the staff to only plug in the printer in this port and do not plug another device into this port.  The following article may help solving usb problems, by removing transparent usb icons in the device manager. http://answers.microsoft.com/en-us/windows/forum/windows_vista-hardware/usb-mass-storage-drivers-stopped-working/f190e06d-939b-4dc6-b2cc-0ca64b0d49dc?page=2
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by:mavcom
ID: 36815248
This has already proven helpful on another situation
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