Our customer currently has an ImageWriter II and Color StyleWriter Pro connected to their computer via an A/B switch box. They are able to print to the StyleWriter, then switch and print to the ImageWriter, but when they switch back to print to the StyleWriter, they get the message "The serial port is currently in use by another program, please quit that program and try printing again."
This message will continue to appear until they restart the machine and then it prints fine.
What is the problem?