Brother Laserprinter Color Hl 3450cn User Guide

CHAPTER 5 MAINTENANCE 
5-35 
10. Press Set, and then press + until “240K KIT” appears. 
11. Press Set, and then press Go.  The printer is now in the READY state. 
 
 
Note 
 User replacement of some of these parts is not recommended. 
 For replacement of the Paper Feeding Roller, Separator Pad and the 
Transfer Drum, consult your local dealer/retailer. 
 Actions 7 to 11 should only be carried out by your dealer or Brother 
authorized service center when they replace the Paper Feeding 
Roller,...

CHAPTER 5 MAINTENANCE 
5-36 
   
C C
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Clean the printer exterior and interior periodically with a dry soft cloth. If the 
printed page gets stained with toner, clean the printer interior with a dry soft 
cloth. 
C C
CL L
L
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E
A A
A
N N
N
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N
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T T
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Clean the printer exterior as follows:   
1....

CHAPTER 5 MAINTENANCE 
5-37 
P P
PE E
E
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O O
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D D
D
I I
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 C C
CL L
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G
   
    
 
After every 20,000 pages printed or every 12 months, we recommend 
cleaning the following parts with a dry cloth. 
Clean the Paper Guide and Registration Roller to prevent paper jams. 
 
Fig. 5-36 
Clean the Exit Roller after opening the Top Cover slightly. This will help to 
prevent paper jams at the paper exit or dirt...

CHAPTER 5 MAINTENANCE 
5-38 
   
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! Caution, Warning 
 Whenever you transport the printer ALWAYS use the packing 
materials that were provided with your printer. Follow the steps 
detailed below to re-pack the printer or the printer may be 
damaged. This will void the printer’s warranty.   
 Before you ship or move the printer, be sure to take out the...

CHAPTER 5 MAINTENANCE 
5-39 
H H
HO O
O
W W
W
   
 
T T
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O
   
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1. Press the Power button to turn off the printer, and then unplug the 
printer. 
2. Remove the Waste Toner Pack, the Toner Cartridges, the Fusing Unit 
and the OPC Belt Cartridge from the printer.  Place them in their 
original packaging. Do not pack them together with the printer in the 
printer carton. 
3. Place the printer...

CHPTER 6 OPTIONS 
C C
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6 6
6
   
 
   
 
   
 
   
 
   
 
   
 
O O
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CHAPTER 6 OPTIONS 
6-1 
   
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Y Y
   
U U
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( (
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- -
3 3
4 4
C C
L L
) )
   
L L
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LO O
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PA A
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RC C
CA A
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E
The lower tray functions as a second paper source. It can hold a maximum 
of 500 sheets of paper (75 g/m2 or 20 lbs). To purchase the optional lower 
tray unit, please consult...

CHAPTER 6 OPTIONS 
6-2 
 
1.  Remove the Paper Cassette from the printer. 
2.  Place the Lower Tray Unit on a flat surface. 
3.  Adjust the Anchor Feet, located 
at the rear and right hand side at 
the bottom of the Lower Tray 
Unit, to level the tray unit. The 
Anchor Foot moves up and down 
as it is turned. Adjustment is 
completed when the Anchor Foot 
touches the surface of the work 
surface and the tray unit is level. 
Turn the lock screw to secure the 
Anchor Foot. 
 
Fig. 6-1 
4.  Remove both side...

CHAPTER 6 OPTIONS 
6-3 
6.  Check the two alignment pins on 
the Lower Tray Unit. Use two 
people to lift the printer and 
place it onto the Lower Tray Unit.  
Be sure to use the handholds 
located at the bottom four 
corners of the printer. Check to 
ensure that the pins align 
correctly into the printer. 
 
Fig. 6-4 
7.  Remove the Connection Cable 
cover. 
 
Fig. 6-5 
8.  Securely connect the printer and 
the Tray Unit at the rear with the 
metal lock plate and the screw. 
Undo the screw a little to...

CHAPTER 6 OPTIONS 
6-4 
 
9.  Insert the connection cable into 
the printer’s connector. 
 
Fig. 6-7 
10.Lock the printer and the Tray unit 
at the front by turning the Metal 
Plate Lock as shown below. 
 
Fig. 6-8 
11.Install the covers on both sides 
of the Lower Tray Unit. Install the 
covers by fitting them first to the 
rear of the printer and then fit the 
cover into the front of the printer. 
 
Fig. 6-9