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Troubleshooting
Troubleshooting
Troubleshooting
6.19 IMAGE QUALITY PROBLEMS
6.19.1 MISJUDGMENT FOR AUTO COLOR SELECTION (COPY/SCANNER)
In the Auto Color Selection (hereafter called ACS) mode, if copying or scanning an original on which color is printed only on the edge, the original will be misjudged as monochrome. If so, color is not printed on the output.
Error Condition
Copy Application
The misjudgment occurs when copying an original which has color at the edge, and that color is printed on the output 10 mm from the edge in the ACS mode.
When using the copy application, if the original is judged as monochrome, color on the document may not be printed on the output. When printing the standard 10 colors used in Microsoft Office Word 2013 (an example is shown below), the following colors with the "x" mark will disappear if the document is judged as monochrome in the ACS mode.
Colors with the "x" mark will not be printed if the document is judged as monochrome. The result may differ depending on the equipment status or environment.
Scanner Application
The misjudgment occurs when scanning an original which has color only 15 mm from the edge (using the original as a standard) in the ACS mode.
Causes
In the ACS mode, the edge of the original is excluded from the judgment. Only the center part of the original document is the target area to judge color or monochrome (in order to prevent misjudgment due to noise).
When copying in the ACS mode, ACS judgment and the image processing equivalent to full color is performed simultaneously. If judged as monochrome in the ACS judgment, color without a K component will not be printed.