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Solution:

Carry out the following sequence of procedures. Terminate the sequence as soon as the problem is resolved.

Procedure 1: Increasing the image transfer current for black in full color mode

1In [Advanced Settings] for the custom paper in use, select [Image Transfer Current: FC: K].

2Increase the value by 10 microA.

3Print the image. Is the problem resolved?

Yes

Finished!

No

Increase the value by 5 microA

4Repeat Step 3. If doing this adversely affects colors other than black, reduce the value by 5 microA and carry out Procedure 2, "Executing image processing".

Procedure 2: Executing image processing

Do the following on the Command WorkStation (CWS).

1Select "Properties..." for the image.

2Click the "Color" tab.

3In "Color mode", select "Expert Settings...".

4If "CMYK/Grayscale" is set to "Colorwise OFF", change it to an appropriate image process.

5If the problem persists even after an appropriate image process is selected, carry out Procedure 3, "Printing black using four colors (YMCK) in full-color mode".

Procedure 3: Printing black using four colors (YMCK) in full-color mode

Do the following on the Command WorkStation (CWS).

1Select "Properties..." for the image.

2Click the "Color" tab.

3In "Color mode", select "Expert Settings...".

4Click the "Gray & Black processing" tab.

5Set "Black text and graphics:" to "Normal".

Black is printed with 4 colors (YMCK).

Note

  • If "Black text and graphics:" is set to "Pure Black On", black is printed with only black toner.

6If the problem persists, contact your service representative.