OKI C7350DTN User Manual

C7350/7550 User’s Guide: Setting Up   •  31
Toner
Printing Black
Your printer prints the color black in one of two ways:
•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. 
True Black
Only black toner is used to print true black.
Use true black when printing a combination of text and graphics.  
Printer (Menu) Setting: True Black
True Black is turned on or off through the...

C7350/7550 User’s Guide: Setting Up   •  32
Loading Paper
Tray 1
  
1.Pull out the paper tray.
 paper tray removek.eps 
2.Load paper.
CAUTION!
To prevent paper jams 
• Don’t leave space between the paper and the paper 
guides and rear stopper.
• Don’t overfill the paper tray. Capacity depends on 
the type of paper and the paper weight. (max. 550 
sheets of 20-lb. US Bond—75 g/m²—paper).
• Don’t load damaged paper.
• Don’t load paper of different sizes, paper quality or 
thickness at the same time.
•...

C7350/7550 User’s Guide: Setting Up   •  33
3.Adjust the paper guides and rear stopper for the size of paper 
being used. 
  paper guidesk.eps and rear paper stopperk.eps  
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C7350/7550 User’s Guide: Setting Up   •  34
4.A lower paper tray cannot be used for printing if any tray above 
it is not inserted.
  multi-traysk.eps 
(1)
(2)
9
(1)
(2)
9
(1)
(2)
8
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C7350/7550 User’s Guide: Setting Up   •  35
5.Gently close the paper tray. paper tray insertk.eps 
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C7350/7550 User’s Guide: Setting Up   •  36
Loading Paper
Letterhead
1.Load letterhead paper face down (for both portrait and 
landscape). 
  letterheadk.eps  
Envelopes
1.Load envelopes face up (flap down) as shown for both portrait 
and landscape printing. 
 letterhead manual feedk.eps  
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C7350/7550 User’s Guide: Setting Up   •  37
Loading Paper
Paper Out
Use paper from next available tray
(Automatic Tray Switching)
  
If one paper tray runs out of paper during a print job, the printer 
can use paper from the next available paper source (tray).
This feature is called Automatic Tray Switching.
You can also specify the order in which the paper trays are used 
during Automatic Tray Switching.
The factory defaults for these settings are:
Automatic Tray Switching is ON.
Tray Sequence is DOWN....

C7350/7550 User’s Guide: Setting Up   •  38
Loading Paper
Paper Out
Use paper from next available tray
(Automatic Tray Switching)
Turn on or off
1.Press MENU until PRINT MENU displays.
2.Press SELECT.
3.Press ITEM (either + or 1) until 
AUTO TRAY SWITCH displays.
4.Press VALUE (either + or 1) until the desired setting displays.
5.Press SELECT.
6.Press ONLINE.  The printer goes online.  
ONLINE displays.
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C7350/7550 User’s Guide: Setting Up   •  39
Loading Paper
Paper Out
Use paper from next available tray
(Automatic Tray Switching)
Set the sequence of use
1.Make sure Automatic Tray Switching is ON.  
See “Turn the feature on or off” on page 45.
2.Press MENU until 
PRINT MENU displays.
3.Press SELECT.
4.Press ITEM (either + or 1) until 
TRAY SEQUENCE displays.
5.Press VALUE (either + or 1) to select the desired setting.
Choices are down, up, and paper feed tray.
The factory default for this setting is:...

C7350/7550 User’s Guide: Setting Up   •  40
Loading Paper
Choosing the Paper Tray (Paper Feed)
 
  
control panel - paper feed selectionk.eps  
1.Press ONLINE.  OFFLINE displays.
2.Press MENU repeatedly until 
PRINT MENU displays.
3.Press SELECT.
4.Press ITEM (either + or -) until 
PAPER FEED displays.
5.Press VALUE (either + or -) until the required paper feed 
displays
6.Press SELECT.
An asterisk (*) appears next to the selected paper feed.
7.When you are finished, press ONLINE.  
ONLINE displays....