Brother Laserprinter Color Hl 3450cn User Guide

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! Caution 
We strongly recommend using genuine Brother toner cartridges. Using 
generic or refilled toner cartridges may void the warranty for this printer. 
Toner Nearly Empty Message 
Check printed pages, page counter, and display messages periodically. If 
the  indicator starts blinking (!), the printer has nearly run out of toner or 
the toner is not evenly distributed inside...

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Replacing the Toner Cartridges 
! Caution 
When replacing the Toner Cartridges, handle them carefully so that toner 
does not spill. 
 
Note 
To ensure optimum print quality, use genuine Brother toner cartridges. Third 
party toner cartridges may not work in your printer. 
To obtain genuine Brother supplies, consult the dealer where you purchased 
the printer.  
 
To replace the toner cartridge(s), follow these steps:   
1.  Open the Front Cover of the printer. 
2.  Remove the...

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4.   Insert the new Toner Cartridge(s) by positioning
 it  in the correct guide(s). 
Slide it gently into the printer. Do not try to lock or push it in; it s\
hould rest 
loosely in the guide rails.  Note that each color cartridge is individua\
lly 
keyed to prevent improper installation. Match each cartridge color label\
 to 
the corresponding label on the printer. 
 
 
Fig. 5-2 
5.   Close the Front Cover. 
  

CHAPTER 5 MAINTENANCE 
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! Caution 
 Insert the toner cartridges gently into the printer. Do not try to lock 
them into place by pushing them. Toner cartridges should rest loosely 
in the guide rails; they will be correctly positioned when the front cover 
is closed. 
 The printer may be damaged or may not work correctly if you install 
consumables other than genuine Brother supplies or if you use refilled 
toner cartridges. This could void your warranty. 
 Do not stand the toner cartridge on its...

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Oil Bottle Low Message 
When the Oil has almost run out, the following message appears on the 
LCD panel.  Obtain a new Oil Bottle to replace the nearly empty bottle. After 
this message appears, you can print approximately 30 pages: 
 
 
Oil Bottle Empty Message 
When the Oil completely runs out, the following message appears on the 
LCD panel and the printer stops printing. When you see this message, you 
must...

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! Wa r n i n g  
The Fusing Unit and the parts around it are HOT! Be sure to wait until 
the Fusing Unit has cooled sufficiently before replacing the Oil Bottle. 
If you touch the HOT parts, you might get injured. 
 
 
 
! Caution 
Be careful not to spill oil inside the printer.   I may cause considerable 
damage and void your warranty. If you spill some oil, consult your dealer or 
Brother authorized service representative. 
     

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Replacing the Oil Bottle 
 
1.  Press the Power button to turn off the printer and wait until it has cooled 
down sufficiently. 
2.  Open the Top Cover. 
3.  Release the Oil Bottle Lock 
Levers as shown:  
 
Fig. 5-4 
4.  Remove the empty Oil Bottle from the Fusing Unit. Hold a sheet of paper 
under the Oil Bottle and lift it out of the Fusing Unit. Move the bottle away 
from the printer to the right so the oil will not spill into it. Be careful not to 
spill oil inside the...

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5.  Install the new Oil Bottle into the 
Fusing Unit with the label facing 
you. The Oil Bottle is keyed to 
prevent incorrect installation. 
 
Fig. 5-6 
6.  Lock the Oil Bottle Lock Levers securely. 
7.  Close the Top Cover. 
8.  Press the Power button to turn the printer On.  

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Fuser Cleaner Message 
When the following message appears on the LCD panel, the printer will 
stop printing and the Fuser Cleaner will need to be replaced: 
 
 
Fuser Cleaner Change Message 
When the following message appears on the LCD panel and the printer 
stops printing, you must replace the Fuser Cleaner: 
 
 
    
REPLACE FCR !
!! !
  READY 
 
CHANGE FCR 
Replace the cleaning roller  

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Replacing the Fuser Cleaner 
 
! Wa r n i n g  
The Fusing unit and the parts around it are HOT! Be sure to wait until 
the Fusing Unit has cooled sufficiently before replacing the Fuser 
Cleaner. 
If you touch the HOT parts, you might get injured. 
 
 
1.   Press the Power button to turn the printer off and wait until it has cooled 
down sufficiently. 
2.  Open the Top Cover. 
3.  Release the Fuser Cleaner Lock 
Levers on both sides as shown: 
 
Fig. 5-7