Comment 5 for bug 1015319

Can you please clearly specify what is your problem? Is the problem happening only in duplex mode? If so, please do the following changes..

- Goto the folder where you have extracted hplip-3.12.6. Go inside /scan/sane and open bb_ledm.c file
- Goto line#805, and replace the line

if(strstr(buf, ADF_EMPTY)) return 0;

with the following..

  if(strstr(buf, ADF_EMPTY))
  {

     if (ps->currentInputSource ==IS_ADF_DUPLEX && ps->page_id % 2 == 1)
        return 1;
     else
        return 0;
  }

- Now goto /hplip-3.12.6 folder and do 'make' and 'sudo make install'. Hope this would solve your problem.