I have a wideformat printer which only connects via scsi or parallel cable. On the printing unit, it has 2 ports - there's what obviously looks like a parallel port - 25 hole for a 25 pin connector. There's also another port which is small, slim and looks like a stretched out triangle - actually it has 4 corner points but it closely resembles a rectangle. Today, I went to get a parallel cable and found out that I'd get more out of a scsi cable, because it's way faster. However - I went online and saw various scsi cables - also the back of my desktop doesn't have the triangular port - only the parallel port (which is why I was looking into purchasing a parallel cable). I saw ones that had 25 pins and I saw ones that had the triangular shape that looked like it'll fit in the other port on the printing unit. My question is: Will the 25 pin scsi cable work if I plug it into the parallel port on my computer and the parallel port on the printing unit? Which scsi connector is best to get - the 25 pin or triangular one? If the triangular one is the best to get is there a card available that has the triangular port , that I could install on my computer? The wide format printer I have is Canon BJ W9000 - it's an old but functional printer. Thank you very much.

Scleros

Canon's web site info for the W9000 makes no mention of a parallel port. That "obvious" parallel port may in fact be a narrow 25 pin SCSI port. You would need to add to your computer a SCSI adapter card such as the Adaptec 2906. Also see SCSI Connectors. Are the HD50 connectors your other connector? An Adaptec 2930 would suit that style of connector.

Note I used Adaptec as an example only, numerous other vendors make compatible (and probably less expensive) SCSI adapters.