This International Standard specifies the essential performance characteristics of reader-printers designed for viewing and making hard copies from microfilm with a maximum width of 35mm, whether in microfilm strips or in roll form, in open reels, cartridges or cassettes, microfiche, jackets and image cards. It applies to reader-printers with a magnification less than or equal to 50:1.
The requirements for the functions of readers, as specified in ISO6198, are summarized in clause4 for convenience of the users of this International Standard.
This International Standard establishes minimum criteria for the hard copy prints produced by reader-printers based on the use of microtest charts ISO No. 1 and ISO No. 2 or from microforms with a specified minimum quality, either an original or a duplicate.
This International Standard does not apply to special reader-printers that produce colour or other types of specialized microforms or prints. In addition, it does not necessarily apply to enlarger-printers.