I recently bought a Prusa i3 variant by Blomker Industries (http://reprap.org/wiki/Prusa_i3_Blomker). Right now, the hot end is clogged, and I have no clue on how to unclog it. I'm not even sure how to disassemble it, since it was already assembled when I bought it. So far, I've tried pushing the filament through (using a small allen key), but it wouldn't budge. I'm hoping that some of you could advice me on how to disassemble it, or maybe even unclog it without disassembling the hot end.

Here's a picture of the hot end for reference:

WP_000970.jpg