I'm using a very basic (low cost) four year old Brother laser printer with a not terribly fast W7 desktop. The printing process has always been quite fast once the printer goes through it's strange and noisy startup sequence (10-15 seconds). Multiple page printing jobs come feeding onto the out tray in a continual sequence with no delays between pages. In fact too fast when I occasionally realise that I've asked it to print all pages of the file and not just the current page
I think you could expect that any modern and current laser printer should fulfill your reasonable expectations about continuous printing once the job has started.