Remove Upper Housing on Epson 1520

[cmd7]

Hi to all,
I have a Epson Stylus Color 1520 for the A2 print that I would to clean (and after solving a problem of block of paper in the printing).

Anyone know how to remove the Upper Housing of the printer? I have removed all screw on the top but I do not know how unlock the hooks in the bottom.

The manual recommend using tweezers, but maybe I have not the right tools.

I do not want to force and damage the printer.

Many thanks

 

[cmd7]

someone has managed similar problems?

here a guide for a stylus photo, although the hooks do not seem posteriorly equal to 1520 but only before