These sponges are located on the right side of the printer where they are similar to the ink cartridges and are used to clean the printer device in order to fix Canon Printer Error Code 6A00.And as a result of this issue, you are unable to print and see a message with the error code 6A00 on the printer's LCD display. For a print job to be successful, the printer's cartridge mechanism must be unblocked when the issue occurs. Contact Us For more Information +1-855-277-9993