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ESDA 2

THE LEADING ELECTROSTATIC IMAGING SYSTEM FOR DETECTING INDENTED WRITING
 
ESDA is the leading technology for detecting indented writing on questioned documents.
 
ESDA works by creating an electrostatic image of indented writing, which is then visualised by the application of charge sensitive toners. The sensitive imaging process reacts to sites of microscopic damages to fibres at the surface of a document, which have been created by abrasive interaction with overlying surfaces during the act of handwriting.
 
ESDA 2 features:
 
    Creation of  permanent records
    Repeatable without loss of information
    Effective on old documents
    A3-sized document bed
    Original cascade development method
    Improved toner pad development
    Optional aerosol hood for ‘powder cloud’ development
    Replaceable vacuum bed