Ricoh Pro C651EX Troubleshooting Manual page 57

Procedure 1: Increasing the image transfer current for black in full color
mode
1. In [Advanced Settings] for the custom paper in use, select [27: Image
Transfer Current: FC: Black].
2. Increase the value by 10 μA.
3. Print the image. Is the problem resolved?
Yes Finished!
Increase the value by 5 μA.
No
4. Repeat Step 3. If doing this adversely affects colors other than black, reduce
the value by 5 μA and carry out Procedure 2, "Executing image processing".
Procedure 2: Executing image processing
Do the following on the Command WorkStation (CWS).
1. Select "Properties..." for the image.
2. Click the "Color" tab.
3. In "Color mode", select "Expert Settings...".
4. If "CMYK/Grayscale" is set to "Colorwise OFF", change it to an appropriate
image process.
5. If 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).
1. Select "Properties..." for the image.
2. Click the "Color" tab.
3. In "Color mode", select "Expert Settings...".
4. Click the "Gray & Black processing" tab.
5. Set "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.
6. If the problem persists, contact your service representative.
57