Printer is unable to print a single copy.

Hi friends,
I have a Canon ImageClass mf4270 s/c/p/f. The problem I am facing with this is that, “The default setting is stuck to 2-sided printing. ” The Copy Setting default field says “Off” for two sided printing but the shortcut button always says “On” that means it will print 2-sided copy.
I have to turn it off manually, each time, for single page printing.
Help me with this problem.
