CompuServe Messages

I need some help in getting a print queue for an Apple Laserwriter to work properly on a MicroVax. I've set up a standard terminal print queue and can get one form to print fine , but then the ready light on the laser writer continues to blink after the form is done and the printer won't accept another form. We have software (PASSPORT by FORTEX) which creates the Postscript file to send to the laserwriter. I've tried sending a file with a Ctrl/D in it, but that still doesn't set the printer back to ready. Could it be some kind of error condition. I don't have a Mac. Is there someway I can get the Error-Handler loaded? I have the 3-volume Postscript handbooks put out by A-W. The only way I can print another form now is to On/Off the printer.