OKI C8800dtn User Manual

							
C8800 User’s Guide171
Black Overprint _________________________
General Information 
Black overprint eliminates the white edge between the printed 
fonts and the colored background.
Black overprint can only be used when printing 100 percent 
black text over a background color.
Restrictions
1.Black Overprint may not be available with some software 
applications.
2. The fonts (characters) must  be 100 per cent black. If 
they are not, they are treated as graphics. Black 
overprint will not work.
Example:
If you print large letters on a color background using 
•a Microsoft Office software application 
• a True Type font 
• Windows XP, 2000, or NT 4.0 
Black Overprint won’t work.
Replace the True Type font with a printer font.
3. When the background color is  very dark, the toner may 
not fuse correctly.
Change the background color to a lighter color.
4. Black Overprint can only be used in Mac OS 10.x if you 
are using an application that  specifies RGB color space 
and you are using PostScript Color Matching.
For more information,   Windows, PostScript:   see page 172 
Windows, PCL:   see page 172 
Macintosh OS 9.x:   see page 173 
Macintosh OS 10.1, 10.2, and 10.3:   see page 173 
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Windows PostScript 
For more information,  see “General Information” on page   171.  
1. Open the file you want to print.
2. Click File  → Print.
3. Select your printer. 
4. Next: 
Windows XP:  Click Advanced. 
Windows 2000: Go to the next step.
Windows Me/98/NT:  Click Properties. 
5. On the Color tab, click Advanced.
6. Check Black Overprint.
Windows PCL 
For more information,  see “General Information” on page   171.  
1. Open the file you want to print.
2. Click File  → Print.
3. Select your printer. 
4. Next: 
Windows XP:  Click Advanced. 
Windows 2000: Go to the next step.
Windows Me/98/NT:  Click Properties. 
5. On the Job Options tab, click Advanced.
6. Check Black Overprint.
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Macintosh OS 9.x 
For more information,  see “General Information” on page   171.  
1. Open the file you want to print.
2. Click File  → Print.
3. Select your printer. 
4. Open the drop-down menu directly underneath the 
printer. 
5. In Color Options, select Black Overprint.    
Click the checkbox to enable the option. 
Macintosh OS 10.1, 10.2, and 10.3 
For more information,  see “General Information” on page   171.  
NOTES  
Black Overprint can only be used  in Mac OS 10.x if you are using 
an application that specifies RGB color space and you are using 
PostScript Color Matching. 
1. Open the file you want to print.
2. Click File  → Print.
3. Select your printer. 
4. Open the drop-down menu. Select Printer Functions.
5. By Color Options, select Black Overprint.    
Click the checkbox to enable the option.  
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C8800 User’s Guide174
Black Printing __________________________
General Information
NOTE 
To use Black Generation, Office Co lor or GraphicPro must be the 
selected Print Mode.  
    
Y o u r  p r i n t e r  p r i n t s  t h e  c o l o r  b l a c k  i n  o n e  o f  t w o  w a y s :                 
•Composite Black
• Tr u e  B l a c k
Composite Black
The cyan, magenta, yellow, and black toners are 
combined  to create composite black.
Use composite black when printing photographs. 
Composite Black can appear  as a brownish-black.
True Black
Only black toner is used to print true black.
Use True Black when printing a combination of text and 
graphics.
If you use True Black to print photographs, dark sections 
of the photos may appear black.  
For more information,  
Windows, PostScript, Office Color:   see page 175  
Windows, PostScript, Graphic Pro:   see page 177  
Windows, PCL:   see page 178   
Macintosh OS 9.x:   see page 179   
Macintosh OS 10.1, 10.2, and 10.3:   see page 180   
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Windows, PostScript 
Office Color 
1.Open the file you want to print. 
2. Click File  → Print. 
3. Select your printer.  
4. Next: 
Windows 98  / Me  / NT4.0: Click Properties. 
Windows XP: Click Properties. 
Windows 2000:  Go to the next step. 
5. Click the Color tab.
6. Click Office Color.
7. Click Options.
8. At Black Finish, make your selection.
Auto 
If Auto is selected, your printer automatically uses the 
best method (Composite or True Black) to print black, 
depending on the type of document you are printing.            
Composite Black (CMYK)   
The cyan, magenta, yellow, and black toners are 
combined to create composite black.
Use composite black when printing photographs. 
Composite Black can appear  as a brownish-black.
True Black (K)
Only black toner is used to print true black.
Use True Black when printing a combination of text and 
graphics.
If you use True Black to print photographs, dark sections 
of the photos may appear black.  
9. Change any other settings as desired.
10. Click OK.
11. The Color tab screen appears.
12. Change any other settings as desired.
13. Click OK.
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14.The main Print screen appears.
15. Change any other settings as desired.
16. Click OK.
17. The document prints.
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Windows, PostScript 
Graphic Pro 
1.Open the file you want to print.
2. Click File  → Print.
3. Select your printer. 
4. Next:
Windows 98  / Me  / NT4.0/XP: Click Properties.
Windows 2000:  Go to the next step.
5. Click the Color tab.
6. Click Graphic Pro.
7. Click Options.
8. At Pure Black Text/Graphics, make your selection.
If the box has a check mark, the feature is ON.
If the box is empty, the feature is OFF.
9. Change any other settings as desired.
10. Click OK.
11. The Color tab screen appears.
12. Change any other settings as desired.
13. Click OK.
14. The main Print screen appears.
15. Change any other settings as desired.
16. Click OK.
17. The document prints.
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C8800 User’s Guide178
Windows PCL 
1.Open the file you want to print.
2. Click File  → Print.
3. Select your printer.
4. Next:
Windows 98  / Me  / NT4.0/XP: Click Properties.
Windows 2000:  Go to the next step.
5. Click the Job Options tab.
6. Click Advanced.
7. At “Always use K toner for 100% Black areas”, make your 
selection.
If the box has a check mark, the feature is ON.
If the box is empty, the feature is OFF.
8. Change any other settings as desired.
9. Click OK.
10. The Job Option tab screen appears.
11. Change any other settings as desired.
12. Click OK.
13. The main Print screen appears.
14. Change any other settings as desired.
15. Click OK.
16. The document prints.
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C8800 User’s Guide179
Macintosh OS 9.x 
Most applications allow the printer properties to be accessed 
from within the document print dialog.
This section will only detail options as they apply to the 
LaserWriter
® 8 driver. 
Refer to manufacturer’s guidelines regarding other driver 
operations, for example  the AdobePS™ driver.
1. Open the file you want to print.
2. Click File  → Print.
3. Select your printer.
4. Open the drop-down menu directly underneath the 
printer.
5. At Color Option, select Office Color or Graphic Pro 3.
6. At Black Generation, make your selection.
Automatic 
If Auto is selected, your printer automatically uses the 
best method (Composite or True Black) to print black, 
depending on the type of document you are printing.            
Generation from CMYK Toner 
(Composite Black) 
The cyan, magenta, yellow, and black toners are 
combined to create composite black.
Use composite black when printing photographs. 
Composite Black can appear  as a brownish-black.
Generation only from Black (K) Toner 
(True Black) 
Only black toner is used to print true black.
Use True Black when printing a combination of text and 
graphics.
If you use True Black to print photographs, dark sections 
of the photos may appear black.  
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Macintosh OS 10.1, 10.2, and 10.3 
For more information,  see “General Information” on page   174.  
1. Open the file you want to print.
2. Click File  → Print.
3. Select your printer.
4. Open the drop-down menu an d select Printer Functions.
5. At Print Mode, select Office Color or Graphic Pro 3.
6. At Black Generation, choose a method. 
Automatic 
If Auto is selected, your printer automatically uses the 
best method (Composite or True Black) to print black, 
depending on the type of document you are printing.            
Generation from CMYK Toner 
(Composite Black)  
The cyan, magenta, yellow, and black toners are 
combined to create composite black.
Use composite black when printing photographs. 
Composite Black can appear  as a brownish-black.
Generation only from Black (K) Toner 
(True Black) 
Only black toner is used to print true black.
Use True Black when printing a combination of text and 
graphics.
If you use True Black to print photographs, dark sections 
of the photos may appear black.  
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