You could find an online Edition of your respective printer's instruction manual on Canon's website by clicking SUPPORT, deciding on MANUALS in the drop-down menu, clicking Printers, and acquiring your printer's product quantity. The USB-A connector is rectangular and connects to the Laptop. The USB-B connector is much more square https://canon-printer-ink12468.theblogfairy.com/36798656/5-easy-facts-about-printer-canon-lbp2900b-described 
