If you are
experiencing dots or marks on printed pages from your Brother machine, please
complete the following steps to troubleshoot this issue:
1. Make sure the
paper or media type you are printing on is within specification. Below is the
media type supported by the machine.
- Use paper that is
between 20 lb to 43 lb. If you are printing on paper that is over 28 lb, use the
MP tray to print. The MP tray can be used for paper that is 20 lb to 43 lb.
- If you are
printing on glossy paper that is 43 lb or more, print only 1 sheet at a time
from the MP tray with back cover open.
Xerox 4200 20lb or
Hammer mill Laser Print 24 lb (90 g/m2)
specific brand recommended
Avery Laser Labels
specific brand recommended
Office Depot Brand
Glossy Laser Presentation Paper 65 lb* (100 g/m2)
machine supports paper up to 43 lb bond paper. The Office Depot Brand Glossy
Laser Presentation Paper 65 lb is a "Tag" Transformation Paper Type which is
equivalent to 31 lb bond paper.
Media Type and
Capacity by Tray
Paper (20 to 28 lb or
75g/m2 to 105g/m2): Can be printed from Tray 1, Tray 2, MP Tray, or
Paper: Can be printed
from Tray 1, Tray 2, MP Tray, or Duplex
Paper (16 to 43 lb or
60g/m2 to 163g/m2): MP Tray only
Paper (16 to 20 lb or
60g/m2 to 75g/m2): Can be printed from Tray 1, Tray 2, MP Tray, or
(28 to 43 lb or
105g/m2 to 163g/m2): MP Tray
Labels: MP Tray
Envelopes: MP Tray
(16 to 43 lb or
60g/m2 to 163g/m2): MP Tray,
print in Duplex if Glossy paper is between 16 lb to 28 lb.
not use paper designed for inkjet printing as it may cause damage to your
machine. This damage is not covered under any Brother warranty or service
The machine is
designed to work well with most types of xerographic and bond paper. However,
some paper variables may have an effect on print quality and handling
reliability. Always test samples of paper before purchasing large quantities to
ensure desirable performance. Use neutral paper; do not use acidic or alkaline
paper. Use long grain paper. Use paper with a moisture content of approximately
5%. This machine can use recycled paper that meets DIN 19309
Using paper heavier than 43 lb can damage the drum unit, fusing unit or other
parts of the units which can result in dots or smears on printed
2. The drum unit is
causing the issue and will need to be cleaned by following the steps
a. Make sure the
machine is displaying the "Date & Time".
MENU, Print Reports, DOWN ARROW to display Drum Dot
Print, press Drum Dot Print, and press BLACK START or COLOR
START to printout the drum dot check sheet.
c. Turn the machine
off using the power switch located on the right side of the machine.
d. Press the front
cover release button and then open the front cover.
e. Hold the green
handle of the drum unit. Pull the drum unit out until it stops.
f. Turn the green
lock lever (1) at the left of the machine counterclockwise to the release
position. Holding the green handles of the drum unit, lift the front of the drum
unit and remove it from the machine.
recommend that you place the drum unit and/or toner cartridges on a clean, flat
surface with a piece of disposable paper underneath it in case you accidentally
spill or scatter toner.
g. Hold the handle
of the toner cartridges and slightly push it to unlock. Then pull it out of the
drum unit. Repeat this for all the toner cartridges.
h. Turn the drum
unit over by holding the green handles. Make sure that the drum unit gears (1)
are on the left hand side.
i. Read the
following information from the drum dot check sheet.
Dot color problem:
The color of the printed dots is the color of the drum you should
Dot location: The
sheet has eight numbered columns. The number of the column with the printed dot
in it is used to find the dot position on the drum unit.
j. Confirm the
suspected area of the appropriate color drum by using the numbers beside the
drum which relate to the numbers of column.
k. Turn the drum
unit gear toward you by hand while looking at surface of the suspected
l. When you have
found the mark on the drum that matches the drum dot check sheet, wipe the
surface of the drum gently with a isopropyl alcohol pad or a soft cloth dampen
in isopropyl alcohol until the mark on the surface comes off.
not clean the surface of the photosensitive drum with a sharp object.
m. Repeat STEPS i - l if you are getting dots with a different
color and are shown on the drum dot check sheet.
n. After cleaning
the drum unit, turn the drum over to the correct position.
o. Hold the handle
of the toner cartridge and slide it into the appropriate colored section of the
drum unit until it clicks into place.
p. Make sure the
green lock lever (1) is in the release position as shown below.
q. Match the guide
ends (2) of the drum unit to the arrow marks (1) on both sides of the machine,
then gently slide the drum unit until it stops at the green lock
r. Turn the green
lock lever clockwise to the lock position.
s. Push the drum
unit in until it stops.
t. Close the front
cover of the machine and power the machine back on.
3. Verify the
firmware of the Brother machine.
a. Press the #
(pound) and * (asterisk/star) keys at the same time. The LCD will
display alphanumeric number.
- If the first
letter is K or below, continue to STEP
- If the first
letter is L or above, go to STEP
4. Update the
firmware of the machine.
A firmware update
tool is available that will allow you to update your Brother machine with the
most recent version firmware by downloading updates over the Internet. The
updated firmware will assist in optimizing toner usage.
refer to the solution "How
do I perform a firmware update or firmware upgrade on my Brother
Once the firmware
has been updated, continue to STEP
5. Print a
a. Print the Test
Print. Press MENU, Printer, Print Options, Test
Print, and BLACK START or COLOR START to print the Test
- If the test print
does not have dots or marks, the issue is resolved.
- If the dots or
marks still appear, please call Brother Customer Service by calling
1-877-Brother (1-877-276-8437) Monday through Friday, excluding