If you got this error:
! Undefined control sequence. <argument> ... }{\mddefault }{\updefault }{\color [rgb]{0,0,0}$some_latex_text$}} l.xx }}}}
or
./directory/figure_file.pdf_t:line_number:Undifined Control Sequence }}}}
(in Kile for example)
It's becauce jinst.cls class does not understand (or has a wrong interpretation) of the \color LaTeX command.
Just add:
\providecommand{\color}[2][1]{}
This will do the job !
Be careful: not tested if the LaTeX text inside the figure is not in black !
In addtion, it seems that jinst class and subfig package are not compatible. I use subfigure instead, but this page gives the following solution:
\usepackage[caption=false]{subfig} % Make \subref robust \makeatletter \AtBeginDocument{% \DeclareRobustCommand*\subref{\@ifstar\sf@@subref\sf@subref}} \makeatother
source