• Download the Canon IP2770 Driver
• Extract the downloaded file
• Just run the install.sh if you can't run install this you need following this step
• Open the install.sh with texteditor like gedit.
• Delete line 1224 until 1250 which contains the following code

C_FUNC_get_system()
{
 local c_system_rpm=""
 local c_system_deb=""

 ## Judge is the distribution supporting rpm? ##
 rpm --version 1> /dev/null 2>&1
 c_system_rpm=$?

 ## Judge is the distribution supporting dpkg(debian)? ##
 dpkg --version 1> /dev/null 2>&1
 c_system_deb=$?

 ## rpm and deb are error, or rpm and deb are no error, is error ##
 if [ $c_system_rpm = 0 -a $c_system_deb = 0 ] || [ $c_system_rpm != 0 -a $c_system_deb != 0 ]; then
  printf "$L_INST_COM_01_02"
  return $C_ERR_CODE
 else
  if test $c_system_rpm -eq 0; then
   C_system="rpm"
  else
   C_system="deb"
  fi
 fi
 
 return 0
}

• Replace with this code

C_FUNC_get_system()
{
C_system="deb"
return 0
}

• After do that, try click twice on install.sh for instalation
• Choose run with terminal
• Insert your password and plug your printer device

For 64bit user, there is some trick from Aditia

• You don't need changing the install.sh file
• Don't plug your printer device during instalation
• Just write this command on your terminal (make sure your terminal is accessing the folder where you save the file)

• sudo dpkg --force-architecture -i cnijfilter-common_3.30-1_i386.deb 

• sudo dpkg --force-architecture -i cnijfilter-ip2700series_3.30-1_i386.deb 

• After do that plug your printer device and you will get notification that your printer ready for using

I hope with this tips and trick you can using your printer in Ubuntu.