Photocopies

Photocopies can sometimes be identified with the machine producing them if the exemplars and questioned copies are relatively contemporaneous. The possible make and model of the photocopy machine can sometimes be determined by comparison with the reference file.

Procedures for Obtaining Known Photocopy Exemplars
 
* Obtain at least ten exemplars with no document on the glass plate, with the cover down.

* Obtain at least ten exemplars with no document on the glass plate, with the cover up.

* Obtain at least ten exemplars with a document on the glass plate, with the cover down.

* Record on each exemplar the date the exemplars were obtained, the name of the person who directed the exemplars, and the conditions underwhich the exemplars were made.
 
* Record the make, model, and serial number of the photocopy machine, information about the toner supplies and components, whether the paper supply is sheet or roll fed, and options such as color, reduction, enlargement, zoom, mask, trim, or editor board.

* Do not store or ship photocopies in plastic envelopes.