Konica Minolta AccurioPress C14000 UK-301 Auto Inspection User Guide - Page 58

KONICAMINOLTA CONFIDENTIAL 9. FAQ Q A stain on the gradation image was not detected. Why is that? A stain that has a sufficient difference in density compared to the background can be detected. C-4 Detection A Example NG OK Q Can a stain on the colored paper be detected? Not detectable if the density difference between the colored paper and the stain is too small. Also, note that it cannot be registered as the ref. image IQ-501 C-5 Detection cannot detect the paper edge. A Example NG Even in the case where plural stains are apparent on the sheet, Q circles (○) are not attached to all of them. Why is that? 1. The stain size is within the margin of error（±0.2ｍｍ）. 2. Density difference compared to the background is too small. 3. If stains exist in the peripheral area on the edge of the background image, it is classified as the non-detection area due C-6 Detection to the setting of detection sensitivity of the image edge periphery A In the cases like above, circles (○) may not be attached on the report on out of criteria images. Example of the cases where detection is not made. (no circles (○) attached) NG NG NG NG What is the threshold of the edge density, which enables judgement Q on alignment error? C-7 Detection Edges on the paper base with the print density 15% or more of A single color (C,M,Y,K) can be used as the sample for alignment error detection. Is it possible to detect the thickness or the difference in obliqueness Q of character? C-8 Detection Not detectable. However, if the thickness changes to the level where the edge A position is apparently changed or obliqueness changes to a large extent, it may be detected as an alignment error. 54