Quality assessment of hard copy recorders
View Patent ↗Quality of a hard copy recorder is assessed by generating a hard copy of a test image stored in digital form. Test values can be measured on the generated test image inside the recorder and an image quality report can be generated on the tested recorder.
1. Method of assessing the quality of the recording characteristics of a hard copy recorder comprising the steps of
retrieving from a memory a digital signal representation of a test image,
controlling the recorder to generate a hard copy of said test image corresponding with said digital signal representation,
performing at least one density measurement on the hard copy of said test image by means of a densitometer part of said recorder,
generating a digital quality report of said hard copy recorder, said quality report comprising at least the results of said density measurement,
storing said quality report.
2. Method according to claim 1 wherein said digital quality report comprises data identifying the date of the measurement.
3. Method according to claim 1 wherein a hard copy of said quality report is generated by means of said hard copy recorder.
4. A hard copy recorder comprising
a memory wherein a digital signal representation of a test image is stored,
means for controlling said recorder to generate a hard copy corresponding with the digital signal representation of said test image on a recording material,
a densitometer part of said recorder arranged for performing at least one density measurement on said test image,
means for generating a digital quality report of said hard copy recorder, said quality report at least comprising the results of said density measurement,
means for storing said digital quality report.
5. A hard copy recorder according to claim 4 arranged for generating a hard copy of said quality report.
6. A thermal hard copy recorder according to claim 5 .
7. A thermal hard copy recorder according to claim 4 .