strongly recommends that customers use only genuine Brother drum units and/or
toner cartridges. Each Brother laser printer is designed to work at pre-set
temperatures that are matched exactly to each of our individual toner
formulations. Each individual component is designed to work with the other
to ensure quality and reliability. Using non-Brother supplies may affect the
hardware performance, print quality, and machine reliability. The Brother
limited warranty does not apply to any problem that is caused by the use of
third party drum units, toner cartridges, or toner.
DR720 drum unit can print approximately 30,000 A4 or Letter size single-sided
pages at 1 per/job.
- There are many
factors that determine the actual drum life, such as the temperature, humidity,
type of paper, type of toner used, number of pages per print job and so on.
Under ideal conditions, the average drum life is estimated at approximately
30,000 pages. The actual number of pages that your drum will print may be
significantly less than this estimate. Because we have no control over the many
factors that determine the actual drum life, we cannot guarantee a minimum
number of pages that will be printed by your drum.
- For best
performance, use only genuine Brother toner. The printer should be used only in
a clean, dust-free environment with adequate ventilation.
- Printing with a
non-Brother drum unit may reduce not only the print quality but also the quality
and life of the machine itself. Warranty coverage does not apply to problems
caused by the use of a non-Brother drum unit.
the steps below to install a new drum unit.
Make sure the machine is powered on. Leave the machine on for at least 10
minutes to cool down.
Press the front cover release button and open the front cover.
Take out the drum unit and toner cartridge assembly by pulling on the handle in
the middle of the drum unit and toner cartridge assembly.
recommend that you place the drum unit and toner cartridge assembly on a piece
of paper in case you accidentally spill or scatter toner.
you have just used the machine, some internal parts of the machine will be
extremely hot. Wait for the machine to cool down before you touch the internal
parts of the machine.
prevent damage to the machine from static electricity, DO NOT touch the
electrodes shown below.
Push down the green lock lever on the right side of the drum unit and toner
cartridge assembly and then lift the toner cartridge out of the drum unit.
Handle the toner cartridge carefully. If toner scatters on your hands or
clothes, immediately wash it off with cold water.
NOT put a toner cartridge or a toner cartridge and drum unit into a fire. It
could explode, resulting in injuries.
use flammable substances, any type of spray, or an organic solvent/liquid
containing alcohol or ammonia to clean the inside or outside of the machine.
Doing so could cause a fire. Instead, use only a dry, lint-free
careful not to inhale toner.
avoid print quality problems, DO NOT touch the shaded parts shown
Be sure to seal up the drum unit tightly in a suitable bag so that toner powder
does not spill out of the drum unit.
Go to http://www.brother-usa.com/environment/tonerinkdisposal.aspx
for instructions on how to return your used consumable items to the Brother
collection program. If you choose not to return your used consumable, please
discard the used consumable according to local regulations, keeping it separate
from domestic waste. If you have questions, call your local waste disposal
Unpack the new drum unit.
Put the toner cartridge firmly into the new drum unit until you hear it lock
into place. If you put it in properly, the green lock lever will lift
Put the drum unit and toner cartridge assembly back in the machine. Do not close
the front cover yet.
When you replace
the drum unit with a new one, you need to reset the drum counter. DO NOT
reset the drum counter when you only replace the toner cartridge.
Stop/Exit to interrupt the error temporarily.
3. Press the UP
OR DOWN ARROW key to display Machine Info. Press Machine
4. Press Reset
menu. Press Drum.
5. The machine will
display Reset Drum? Press Yes.