Objective To explore the characteristics of different sequences of laser printing and gel pen writing without intersecting strokes.Methods Two groups of document were made by laser printing and volunteers' handwriting in different sequences, and then the documents were observed with Optem A-Zoom 2 video topography microscope.Results There were at least five classes of feature differentiae in different sequences of laser printing and gel pen writing without intersecting strokes.Conclusion These differentiae provided base for determination of sequence between laser printing and gel pen writing without intersecting strokes.
Key words
intersecting strokes /
laser printer /
gel pen /
sequence /
document examination
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References
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Footnotes
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