Dear Epson, There is a good news. At around 1:06:18 PM, my brain worked in right direction and I went to Settings and selected Printer. After that I tried to change the settings and activated the driver. And I got positive Printer Test Page. I printed some page. Motivations provided by the Epson Service Team, Manual provided by Boss Linux, helped me. I thank the whole team. Regards, Prit Ranjan Jha. 9525706202, 8434519346.