disable \r\n\t

my problem is the \r\n\t and \r\n character that ckeditor append in the string entered by user, even if the text field contains only one word or is empty.

There is a way to disable it?

i search in the forum but i find only this post for fckeditor: http://cksource.com/forums/viewtopic.php?f=5&t=11502
and the property isn't valid for ckeditor.

this is my config:

CKEDITOR.editorConfig = function (config) {
   // Define changes to default configuration here. For example:
   config.language = 'it';
   config.uiColor = '#A6C9E2';
   config.htmlEncodeOutput = 'false';
   config.AutoUpdateElement = 'true';
   config.resize_dir = 'vertical';
   config.height = '100';
   config.toolbar = 'MyToolbar';
   config.extraPlugins = 'ajax';
   config.resize_minHeight = '40';

   config.toolbar_MyToolbar =
   [
      { name: 'documento', items: ['Print', 'Maximize'] },
      { name: 'clipboard', items: ['Cut', 'Copy', 'Paste', 'PasteText', 'PasteFromWord', '-', 'Undo', 'Redo'] },
      { name: 'editing', items: ['Find', 'Replace', '-', 'SelectAll', '-', 'SpellChecker', 'Scayt'] }

   ];

   config.removePlugins = 'elementspath';
   config.scayt_sLang = 'it_IT';
};