Depends, kinda. If I'm in "work mode" then after finishing a page or batch, I'll usually wait until the next day to start sketching the next set (or maybe 1 or 2 days later, depending). But that's mostly just because by the time I'm done coloring pages I've usually already been working on comics for a while that day and am ready/need to do other stuff.
But I'm a big believer in taking breaks when you need them, so if I finish a page and aren't mentally prepared to keep doing more comics, then I might take several days or a week off, depending. I've been feeling this a lot with my current project- It's somewhat episodic, so after I'm done with one episode although there's a lot more script ahead of me to draw, it doesn't feel so much like I need to get to the next page right away since it's its own thing. So I've been taking a few days between finishing one episode and starting the next.