Toner-Printed Character, Fusion Quality Gauge
Original Publication Date: 1985-Aug-01
Included in the Prior Art Database: 2005-Feb-19
Apparatus for testing the fusion quality of toner-printed characters is shown. The assessment of the degree to which toner-printed characters are well fused to paper has long been highly subjective. This apparatus is designed to reduce that subjectivity to a tolerable level and provide a means by which the measurement is made repeatable. The apparatus comprises a precisely machined blade 10 which is pivoted on a suitable mounting pin 12 in a block 14. Also mounted on the block 14 and cooperating with the blade is a force gauge 16 which can be adjusted to load the blade to an appropriate force. To test the fusion quality, the gauge is moved over the printed character a determined number of times and a judgment is then made based on the percentage of toner removed, for example, thereby providing the fusion quality measurement.