Brother Laserprinter Hl 1270n User Guide

CHAPTER 3  MAINTENANCE
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How to replace the Toner Cartridge
When the Standard Capacity toner cartridge is used, the printer can print approximately 3,000
pages at 5% coverage on A4/Letter size paper with one toner cartridge.  When the High
Capacity toner cartridge is used, approximately 6,000 pages can be printed under the same
conditions.  When the toner cartridge is running low, the Alarm
 and Data
 (Toner) LEDs
blink once every 5 seconds to indicate the toner is depleted and will soon run out....

3-4
2Note
Both Alarm and Data (Toner) LEDs will blink continuously to indicate that the toner is
nearly empty.  This blinking does not stop until you have installed a new toner cartridge.
The toner cartridge is replaced in the following way.  You can also view the toner cartridge
replacement method in the instructional video on the supplied CD-ROM:
*
  1.Open the front cover.  Pull out the drum unit assembly.
Fig. 3-2  Removing the drum unit
!Caution

It is a good idea to place the drum unit assembly on...

CHAPTER 3  MAINTENANCE
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*
  2.Place the drum unit assembly on a piece of cloth or disposable paper that is on a flat,
horizontal surface. Pull the toner cartridge out of the drum unit assembly while holding down
the lock lever with your right hand.
Fig. 3-4  Removing the old toner cartridge
!Caution
Handle the toner cartridge carefully.  If toner scatters on your hands or clothes, immediately
wipe or wash it off with cold water.
*
 3.Unpack the new toner cartridge. Keeping it horizontal, gently rock...

3-6
*
 4.Remove the protective cover.
Fig.3-6  Remove the protective cover
!Caution

Wait to unpack the toner cartridge until immediately before you are ready to install it into
the printer. If toner cartridges are left unpacked for a long period of time, the toner life is
shortened.

If an unpacked drum unit is subjected to excessive direct sunlight or room light, the unit
may be damaged.

Use only a genuine Brother toner cartridge which is specially formulated to ensure top
print quality.

Printing...

CHAPTER 3  MAINTENANCE
3-7
*
 5.Install the new toner cartridge into the drum unit until it clicks into place.  When the toner
cartridge is installed correctly, the lock lever is lifted and locks automatically.
Fig. 3-9  Installing the toner cartridge
into the drum unit
!Caution
Make sure the toner cartridge is installed correctly, or the toner cartridge may separate from
the drum unit when you hold the drum unit assembly.
This Lock Lever is up
until this position.
X 

3-8
*
 6.Clean the primary corona wire inside the drum unit by gently sliding the blue tab to the right
and the left ends several times.  Return the tab to the Home position before reinstalling the
drum unit assembly.
Fig. 3-10  Cleaning the primary corona wire
!Caution
Make sure that you return the tab to the home position  (s mark position) before reinstalling
the drum unit assembly into the printer otherwise printed pages may have vertical stripes.
*
 7.Re-install the drum unit assembly into the...

CHAPTER 3  MAINTENANCE
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How to replace the Drum Unit
The printer uses a drum unit to create the print images on paper.  If the Drum LED is lit it
indicates the drum unit is near the end of its life.  Purchase a new drum unit to replace the
current one.  Even if the Drum LED is on, you may be able to continue to print without
replacing the drum unit for a while.  However, if there is a noticeable deterioration in the
output print quality even before the Drum LED lights, then the drum unit should be...

3-10
You can also view the drum unit replacement method in the instructional video on the
supplied CD-ROM.
Follow these steps to replace the drum unit.
*
  1.Open the front cover of the printer and pull out the drum unit assembly.
Fig. 3-13  Removing the drum unit assembly
!Caution
To prevent damage to the printer caused by static electricity, do no touch the electrodes shown
below.
Fig 3-14  Electrodes 

CHAPTER 3  MAINTENANCE
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*
  2.Place the drum unit assembly on a piece of cloth or disposable paper that is on a  flat,
horizontal surface. Pull the toner cartridge out of the drum unit assembly while holding down
the lock lever with your right hand.
Fig. 3-15  Removing the toner cartridge
2Note

Discard the used drum unit according to local regulations.  If you are not sure of them,
consult your local dealer/retailer.  Be sure to seal up the drum unit tightly so that toner
powder does not spill out...

3-12
!
Make sure that the toner cartridge is installed correctly, or the toner cartridge may separate
from the drum unit when you hold the drum unit assembly.
Fig. 3-16  Install the toner cartridge into the drum unit
Fig. 3-17  Installing the drum unit
X
This Lock Lever is up