Xeroxing thumb nails

[TROUBLEZ]

I've been reading how artists first make thumbnails then blow them up with a xerox machine.

I have a couple questions about that:

1) Does Kinko's have xeroxes that produce pages the size of the standard comic art board?
2)How convenient is this? It seems like it would be very bothersome to go out to Kinko's or the local copy store to make a copy? Is there another method that can produce the same results? Or is it practical to just buy a copy machine?

[Crowforge]

I've scanned my stuff (at home) and blew it up either by stretching the image to the page during print setup or via image editing software. That way is very practical and is only limited by the size of the paper in the tray.
I also find it convenient if I want to experiment with different looks or color schemes.

[TROUBLEZ]

Thanks for the reply.

I'll probably look into buying those larger scanners. Now I need to find printers that print that large.

[Pro]

I work at a copy store aside being an illustrator. It is helpfull.

But yea A4 printer/scanner combo works fine, specially combined with a lightbox.
Often my drawings tend to be composites of several sketches I blew up on my comp and printed to refine them into a finalised drawing on my lightbox.

these days I do some of the sketching with photoshop and a penmouse because it gives me a bit more options with regard to variety. And if i get a good sketch using photoshop I recently start using that instead of bothering with pencil art.
In such a case I turn the sketch into a silhouette, then add the basic highlights in it and I detail it from there.
While it'll take a lot of practice it wil eventually allow me to quickly make a bunch of variations on a theme. In the game industry for example this is a fairly common practice. It allows you to focus on shape first and details second.
Once you got a good thumbnail silhouette the rest is easier to fill in.