Dump eeprom with a new printer Canon Pixma MG2540, in the presence of the programmer and the soldering iron, helps flush the MG2540 error 5B00. For more information about the whole process of looking at the following link: http://printblog.com.ua/remont-canon/canon-mg2440-kod-podderzhki-5b00-sbros-oshibki-schetchika-pampersa.html