ISSN: 0022-1198
CODEN: JFSCA
Page Count: 7

Restoring Texts of Typewriter Ribbons: A Reliability Study of the RAW-1 Ribbon Analysis Workstation
Puckett, JT
Senior Document Analyst, IRS National Forensic Laboratory, OK

Hunton, RK
Senior Document Analyst, IRS National Forensic Laboratory, IL

(Received 15 April 1993; accepted 3 July 1993)

Abstract

The ribbon analysis workstation (RAW-1) is a computer driven electro-mechanical device designed to enable specialists in questioned documents to transcribe and analyze any of a wide range of multi-row, single-strike, carbon film ribbons. The time consuming method of manually reading a single-strike ribbon makes the introduction of the RAW-1 a unique labor saving instrument. This study examines the accuracy of the RAW-1 in reproducing an accurate transcription of an original text from a carbon film ribbon. Ten single-strike ribbons, with a predetermined text of ten thousand words, were processed on the RAW-1. The texts from the ribbons were then compared to the printout from the RAW-1 for accuracy and repeatability.

Keywords:
questioned documents, computer, typewriter, ribbon, printer, laser printer, electro-mechanical unit

Paper ID: JFS13567J
DOI: 10.1520/JFS13567J
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