I have ATEN USB 4 port switch US421A used to share a HP 2055d printer for a few laptops. At times, when a print job is initiated before switching to the right port, the printer will 'hang' when switched to the right port.
The status on the LCD will show printing document, but nothing will happen, if you retry printing, it will print pages of garbage. This will only go away if you turn the printer off.
Any suggestions at all will be helpful.
The laptop giving problem is usually the Lenovo T400 running Vista Sp1