Question about Brother DCP-7020 All-In-One Laser Printer

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Toner not fixed to the page, rubbing off

Having replaced both the drum and toner recently, I don't know which caused the problem. Now, images that print on page can be smudged off to the point of not being readable because they are too faint. Does anyone know which is defective: the toner cartridge or the drum? Thanks in advance.

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Re: Toner not fixed to the page, rubbing off

The fuser (a large roller near final exit that is heated) is not reaching proper temperature. normally, it should be too hot to touch.

Posted on Jun 06, 2007

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I have an HP 4515 that is printing blank pages. I have tried to replace the toner and the power supply board. Neither resolved the issue. When the paper gets deliver out the paper is warm. This occurs when...

I believe I understand your issue:-
The printer is able to come to ready- your still able to navigate the menus. the printer goes through all the motions of printing except producing an image-
Having the machine print a test page ( internal Print ) tests whether the formatter is still able to generate a digital image ready for the print engine, but does not diagnose the print engine-
1) power down and remove power cord
2)remove the toner cartridge, use a pair of pliers and gently rotate the drum ( within the toner cartridge, a drive gear/mesh can be found on the end of the toner unit)- are you able to turn this drum or has it seized?
if it doesnt replace the new toner with another NEW toner and try again
3) return the power and power up the machine having first disconnected all network connections.
allow the machine to come to ready.
4) ask the printer for a config page ( internal print) and estimate when the paper is immediately below the drum surface ( toner cart) and using the power switch turn the printer off- causing a jam in the centre of the printer - this is ok we do this to see if an image has been generated on the drum surface- remove the toner cartridge and slide the drum protector plate to the side, look carefully at the drum suface ( you should see a latent image of a config page, at this point look at the paper still jammed inside the printer and see if there are any signs of toner ( there should be part of an image allready on the surface ) now if there is an image on the drum but no image on the paper then I would replace the transfer roller and or transfer HVT power unit, if however there is no image on the drum then you have a very serious problem which will require a new laser unit ( but this should really come up with a diagnostic error code)or Primary HVT unit.

Feb 06, 2014 | HP P4515n LaserJet Printer

1 Answer

Printing blank page even in test mode. hplaserjet 1200

Checking the toner cartridge
Image formation defects are many times the result of problems in the toner cartridge. If there is any doubt, always replace the toner cartridge before troubleshooting image defects.
Use the following checklist to make sure that the toner cartridge is still operable.
" Make sure that the toner cartridge is seated properly.
" Inspect the toner cartridge for toner level.
" Check the expiration date stamped on the toner cartridge box.
" Check the toner cartridge to see if it has been disassembled or refilled.
" Inspect the toner cartridge to see if toner is leaking through worn seals.
" Check the surface of the photosensitive drum in the cartridge to see if it has been damaged or scratched. Touching the drum contaminates the photosensitive surface and can cause spotting
and image defects.
" Blurred areas on printed pages indicate that the photosensitive drum in the cartridge has been overexposed to light. Because overexposure to light causes permanent damage to the photosensitive drum, the cartridge should be replaced.
Note A toner cartridge weighs approximately 863 grams (30.5 oz) when it is full, approximately 766 grams (27.0 oz) when it first fades, and approximately 742 grams (26.2 oz) when it is empty.

To redistribute toner in the cartridge

Before installing a new cartridge or when toner begins to run low, redistribute the toner by rotating the cartridge back and forth five or six times.

Jul 27, 2011 | HP LaserJet 1200 Printer

1 Answer

Laser printer horizontal streaks go away after a few pages

The operating principles behind laser printers are fairly simple. In fact, Brother machines more closely resemble large copiers than conventional laser printers, this is why they are so reliable.

There are a couple of things to look at:

On the drum unit: is the imaging drum worn or scratched? When did you last clean the corona wire?

If the drum is scratched or otherwise with defect it should be replaced. If the corona wire is dirty it can fail to properly charge the drum and lead to print defects.

On the toner cartridge: Does the toner roller have any noticeable lines or banding in the toner?

Behind the toner roller is a "Doctor Blade" that ensures an even and consistent coating of toner. If there are lines in it they can produce print defects as well. Lines would be likely caused by toner accumulation on that blade. If there are lines, are you are careful, you may be able to clean the blade by gently and slowly scrubbing the non adhesive end of a post-it note between the toner roller and the doctor blade where the lines are.

Jan 15, 2010 | Brother HL-2070N Laser Printer

1 Answer

Brother MFC-7420 just started printing a shadow image

Sounds like a bad drum cartridge. Pull the toner/drum cartridge out of the machine and set it down. Press down on a (blue?) tab to release the toner cartridge, and you can lift the toner cartridge out of the drum cartridge. There is a cleaning blade in there - a soft plastic blade that rides against the drum and scrapes off toner that didn't get transferred to the paper. If it gets stuck off the drum surface, images repeat a few inches (one drum circumference) down the page.

A new DR-350 drum unit should fix it. have the machine's power on when replacing it. While the door is open, touch the CLEAR key. The display will read "REPLACE DRUM?" or something like that. Press 1 for Yes.

Jan 05, 2010 | Brother MFC 7420 All-In-One Laser Printer

3 Answers

My Dell 5110CN printer is printing a double image

I am having the same problem, and I am using the original toner cartridges that were supplied with the printer, so yes, they are genuine Dell toner cartridges.

Dec 27, 2009 | Dell 5110cn Laser Printer

1 Answer

The toner tray will not pull out from the machine

Replacing the Toner Cartridge
The MFC can print up to 6,000 pages using a high yield toner cartridge. When
the toner cartridge is running low, the LCD shows TONER LOW. The MFC is
supplied with a standard toner cartridge that must be replaced after
approximately 3,000 pages. Actual page count will vary depending on your
average document type (i.e., standard letter, detailed graphics).
Discard the used toner cartridge according to local regulations. If you are not
sure of them, your local Sanitation Department. Be sure to seal the toner
cartridge tightly so toner powder does not spill out of the cartridge. When
discarding used toner cartridges, keep them separate from domestic garbage.
We recommend that you clean the MFC when you replace the toner cartridge.
1 Open the front cover and pull out the drum unit.
Place the drum unit on a drop cloth or large piece of disposable paper to avoid
spilling and scattering the toner.
2 Hold down the lock lever on the right and pull the toner cartridge out of the drum
unit assembly.
Handle the toner cartridge carefully. If toner scatters on your hands or clothes,
immediately wipe it off or wash it with cold water.
3 Unpack the new toner cartridge. Place the used toner cartridge into the
aluminum bag and discard it according to local regulations.
 Wait to unpack the toner cartridge until immediately before you install it in the
MFC. If a toner cartridge is left unpacked for a long period of time, the toner life
is shortened.
 You can use only a genuine Brother toner cartridge (TN-430 or TN-460), which
is specially formulated to ensure top print quality. Using another brand of toner
cartridge may void your MFC’s warranty. Warranty coverage does not apply to
problems caused by the use of 3rd party Toner, 3rd party Toner Cartridge or 3rd
party Drum unit.
4 Gently rock the toner cartidge from side
to side five or six times to distribute the
toner evenly inside the cartridge.
5 Remove the protective cover.
6 Insert the new toner cartridge in the
drum unit until it clicks into place.
7 Clean the primary corona
wire inside the drum unit by
gently sliding the blue tab
from right to left several
times. Return the blue tab to
the Home position ( )
before reinstalling the drum
unit assembly.
Reinstall the drum unit and close the
front cover.
Replacing the Drum Unit
The MFC uses a drum unit to create print images on paper. If the LCD shows
CHANGE DRUM SOON, the drum unit is near the end of its life and it is time
to purchase a new one.
Even if the LCD shows CHANGE DRUM SOON, you may be able to continue
printing without having to replace the drum unit for a while. However, if there
is a noticeable deterioration in the output print quality (even before CHANGE
DRUM SOON appears), then the drum unit should be replaced. You should
clean the MFC when you replace the drum unit. (See page 21-18.)
When removing the drum unit, handle it carefully because it contains toner. If
toner scatters and your hands or clothes get dirty, immediately wipe or wash
with cold water.
Just after you have used the MFC, some
internal parts of the MFC are extremely
HOT! So please be careful.
The drum unit is a consumable item, and it is necessary to replace it periodically.
There are many factors that determine the actual drum life, such as temperature,
humidity, type of paper and how much toner you use for the number of pages per print
job. The estimated drum life is up to 20,000 pages. The actual number of pages your
drum will print may be significantly less than these estimates. 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.

Oct 02, 2009 | Brother MFC-9840CDW Laser Printer

2 Answers

HP Laserjet 2820 Streaks on Page


There are 3 parts to the imaging process that could cause your issue. You have the toner (x4), the imaging drum unit (Q3964A) and the fuser unit. If you are getting streaks from all colors, one or more these parts are the issue.

Let's start with the easy stuff:

Open the cover as if you were replacing toner where you can "visually" inspect the toner and imaging drum. Pull the drum out and pull back the "plastic shutter" on the top, this will expose a green drum CAUTION! Too much exposure to light and touching it can cause damage. Just take a quick look trying to see if any of the lines on your page match any marks on the drum. Check the bottom half of the unit as well there should be a white section across the bottom, expect that as well.

Next look at the toner, if you can look at any other color but black it will help you look for the streak marks a lot easeier. If you couldn't see any streaks on the drum on toner cartridges, it's time to look at the fuser unit. Power the machine down and turn it around, unplug it then fold down the blue clips and CAUTION! the fuser heats the toner to the page so if it's been used recently it may be hot. once the clips are down, just pull straight back and look for the streak marks.

Sorry for the book, but I hope it helps.

Jul 30, 2009 | HP LaserJet 2820 Printer

1 Answer

Deteriorating image quality

Good Evening Robert,

The setting for non dell toner only controls the fuser temperature, and will not cause you any print quality issues. Toner is actually made up of ink and plastic. The fuser melts the plastic to "fuse" the image to the paper. Dell toner is set to "fuse" at a specific temperature. when you use non Dell toners, the temperature required to fuse may be different, and when set to non dell toner setting, the fuser temperature is raised to the maximum to ensure the other toner fuses properly. The down side to this is that you will wear out the fuser sooner then it should.

As far as the print quality issue you are having, it is most likey caused by the imaging drum.

Regardless of the estimated life for the imaging drum as stated by the printer, this is just an estimate. Many things can and will cause the imaging drum need replacing. ( Just yesterday I replaced a black toner in a 3115 that was less then a month old... genuine Dell... with more then 75% expected usage left because it was defective).

On this printer, each of the 3 colors and the black are all independent of each other with the exception of the imaging drum. Even within the imaging drum, cyan and black are independent of magenta and yellow on the first stage of transfer. When you have deteriorated print quality that effects more then one color, the first step is to replace the imaging drum.

The Primary transfer, secondary transfer, and tertiary transfer of the image are ALL contained within the imaging drum.

The chances of having 3 or 4 bad Developers is very very slim. If your print quality issue was related to only ONE color, then I would say you had a bad developer unit ( the 4 items located behind the imaging drum when removed). These are far more difficult and expensive to change.

The BTR ( bios transfer roller ) is the only other item that "could" effect your print quality, however, based on the symptoms you discribed, I doubt it. Besides, if i am not mistaken, the imaging drum kit comes with a new btr anyway.

Although I am sure you may be disappointed with the fact the drum unit is failing while showing it still has life remaining, the solution to replace it should restore your unit to full operation. The unit is light sensative, and effected by physical age as well as the number of prints it has supplied.

Please evaluate the solution i have provided and, rate the solution appropriately to show your support.


Oct 11, 2008 | Dell 5100cn Laser Printer

1 Answer

Laser printer

I developed a color print that has all 4 principal pure toner colors in vertical and horizontal bars that are at least 2" wide.  If perhaps you are having a toner problem only one of the colors will be affected.  If all colors are affected there are two possible issues.  The drum, which I think is actually a belt, and the other the fuser assembly.
The fuser is a heater and pressure roller system that presses and melts toner onto a page.   The drum is an imaging device that picks up toner where images should be and transfers toner onto a piece of paper.  Any toner not transfered from the drum / belt is destined for a waste toner hopper.  If the belt is not being cleaned properly or has an image or flaw artifact that cannot be cleaned / erased you always get that printed on a page.  

Aug 04, 2008 | Konica Minolta magicolor 2400 Laser...

1 Answer

Pages full of toner / toner streaking

First off, this is a comment from a random person who may or may not know ALOT about these printers and toner/printer design in general. All toners are not designed to the same specification. Toner is a combination of plastic "pigment" and iron like shavings to make it magentically attracted to the electrical charges within the unit. Different toners conform to different grades and mainly size of the particles within the blend. The manufacturer doesnt only recommend that you use their toner to make them money, yes of course it makes money, but its because when the unit is designed it is designed to use a certain grade of toner, trust me if you put the non-branded toner vs the branded toner under a microscope you would see quite a difference. Often the non-branded toner is much larger in particle size (obviousely because its cheaper to make at this spec). This causes a variety of issues from excess toner not being cleaned off of developer rollers, IDT rollers, or clogging of toner dispenser tubes in the unit and the micro filters contained at the toner dispenser assy and developer assys. Also as for the issue not changing when switching to dell branded toner - the dispenser tubes within this unit contain up to 500-1000 pages worth of toner, making no change in toner you make immediately visible. Also depending on the damage caused by the previous toner, it may not be able to be fixed until all the components in between the toner and final delivery (drum cart) are replaced. In this case more than likely the toner dispenser assy, all developer assy's, and drum cartridge need to be replaced, and than be sure to stick with factory branded toner :)

Apr 26, 2008 | Dell 5110cn Laser Printer

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