Lase paper jam TI microplaser pro 600

I have a Texas Instruments Microlaser Pro 600 connected to an ancient Mac. I use the computer only to print files created in a program that is obsolete and will not work on later MACs. After almost every completed print job, the printer announces a paper jam, but there is no paper jam. Sometimes opening and closing the paper drawer does the trick, sometimes I have to turn the printer off and then on to get it to print another job. Any idea how to get rid of this malfunction?