Question about Brother MFC 7420 All-In-One Laser Printer

1 Answer

Bad copies and prints after changing the drum and toner cartridge

We recently replaced the drum and toner cartridge and everything that prints has lines and blotches on it. I don't know what caused this. It didn't happen immediately after replacing the drum and cartridge, several weeks later. Any help would be appreciated. Thanks Jeff

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  • a_windisch Jan 05, 2009

    i have the same problem and yes I have cleaned the wire. I feel like I wasted as much as it would have cost to get a new all in one. Is there anything that can be done without buying another drum?

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  • 105 Answers

Did you clean the corona wire when you replaced them? Even with the Drum being brand new, you still need to run the little piece of blue plastic back and forth across the wire that is called the corona wire. If you don't know where that is, and do not have the complete software for your printer - you can find that at the link I have provided below. The short version is that it is just in front of the toner cartridge on the drum housing. If you do have the software, open the user manual and look for the table of contents listing that refers to replacing toner and drum cartridges. This will show you a picture of where the corona wire is.
http://welcome.solutions.brother.com/BSC/Public/Templates/DownloadTop.aspx?NRMODE=Published&NRNODEGUID=%7b2C7B4D65-D5B3-47BF-958E-322BE5EFDCA8%7d&NRORIGINALURL=%2fbsc%2fpublic%2fus%2fus%2fen%2fdlf%2fdownload_top%2ehtml%3freg%3dus%26c%3dus%26lang%3den%26prod%3dmfc7420_all&NRCACHEHINT=NoModifyGuest&prod=mfc7420_all&reg=us&c=us&lang=en

Posted on Jun 18, 2008

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Canon irc4580i print dark problem


In the process used printer, will be inevitable printed page by your printer have the bad quality prints. For example: Toner specks, Light image, Vertical line, Dropouts, background, Toner smear, Vertical black line and band, Vertical white line, Background scatter, Black pages, Loose toner, Horizontal stripes, Ghost, Uneven Density, poor fusing ...
The common print quality problem Canon IRC-4580 printer
Currently, The Canon IRC-4580 is the laser printer have high speed, easy to use, friendly for user and printing clear text.
However, we can not avoid the damage of some components of the printer when used.
In this article, I will introduce some basic errors with printing quality problems of Canon IRC-4580 printer and "How to fix it".
After viewed artical, you know:
- How to fix (repair/solve) Vertical line (black or white) in Canon IRC-4580 printer
- How to fix (repair/solve) Poor fusing (loose toner) in Canon IRC-4580 printer
- How to fix (repair/solve) Uneven Density in Canon IRC-4580 printer
- How to fix (repair/solve) Light image in Canon IRC-4580 printer
- How to fix (repair/solve) Ghost in Canon IRC-4580 printer
1. Fix print quality problem "Vertical line" for Canon IRC-4580 printer How to fix print quality problem Vertical line
This plobrem "Vertical line" is usally error of Canon IRC-4580 printer. For this "Vertical line" error, technicians divided into two smaller error are: Vertical black line and band and Vertical white line.
Description:
- Vertical line and band: On the printed image appear some straight thin black vertical.
- Vertical white line: On the printed image appear some white vertical voids.
Error location:
- Surface of the charge roller
- OPC drum
- Cleaning blade
- LSU unit
- Developing roller

Cause of error "Vertical line" on the printed page:

- May be surface of charge roller scratched or dirty by toner powder.
- May be have some grooves on the OPC drum.
- May be cleaning blade is damaged.
- May be LSU window or LSU lense has dirty.
- May be surface of developing roller has scratched.

How to fix(repair) "Vertical black Line and Band" for {{SPkey1}} machine:

- Replace the charge roller of toner cartridge.
- Replace the OCP drum.
- Replace the cleaning blade
If printed page are not improved
- Clean the LSU unit by soft cotton cloth and try to print. If Vertical line is not clear on the printed page you should replace LSU unit.
- Replace new axis developer and try to print
2. Solve print quality problem "Poor fusing (loose toner)" for Canon IRC-4580 printer. How to fix print quality problem loose toner
Description loose toner: Toner is not properly fixed on paper, use to hand rubbing lightly on the printed image toner powder may be stick in hand
Error location: toner cartridge or fuser unit

Cause of error "Dark Image or black" on the printed page:

When toner cartridge is empty. You toner refilled by toner powder ware not compatible. This is makes toner cartridge components demaged and temperature of fuser unit is not enough melt to toner powder

How to fix(repair)"Poor fusing (loose toner)" on the printed page for Canon IRC-4580 printer:

With this error, you should replace toner cartridge or fuser unit to fix it.
3. How to fix print quality problem "Uneven Density" for Canon IRC-4580 printe How to fix print quality problem Uneven Density
Description: The printed page has one half light and one half clear.
Error location: Toner cartridge, transfer roller, springs, doctor blade

Cause of error "Uneven Density":

- The pressure force on the left and right springs of the transfer roller is not even.
- May be toner low also causes this error
- Doctor blade has bent
How to repair error "Uneven Density" on the printed page for Canon IRC-4580 printer:
- Replace springs and transfer roller.
- Toner refill toner cartridge Canon IRC-4580 and reset toner cartridge chip (replace new chip) or replace new genuine toner cartridge.
- Replace doctor blade.
4. How to solve print quality problem "Light image" for Canon IRC-4580 printer How to fix print quality problem light image
Description: The printed image is all light and no Ghost.
Error location: Toner cartridge, Developer, HVPS board

Cause of error "Light image" on the printed page

- Enabled toner save.
- Toner cartridge is low
- OPC drum may be faulty by strong light intensity
- Temperature in room is below than 10*C
- Bad contact caused by the toner dirty between the high voltage terminal in the HVPS and the one in the set
- Abnormalities output from the HVPS

How to fix(repair) error "Light image" on the printed page for Canon IRC-4580 printer:

- Disable toner save by change in printer driver.
- Toner refill toner cartridge Canon IRC-4580 and reset toner cartridge chip (replace new chip) or replace new genuine toner cartridge.
- Replace the OPC drum.
- Replace developer.
- After printer is power on, wait 30 minutes then start printing
- Clean up the contact between the high voltage terminal in the HVPS and the one in the se- Replace the new HVPS if the problems are not solved by 4 away above.
5. How to fix print quality problem "Ghost" for Canon IRC-4580 printer How to fix print quality problem Ghost
Description: Ghost occurs intervals of the OPC drum or transfer roller.
Error location: Toner cartridge, Developer, HVPS board

Cause of error "Light image" on the printed page

- OPC drum has fauty.
- The life of the transfer roller has been expired
- The high voltage terminal is contaminated by toner powder or

How to fix(repair) error "Light image" on the printed page for Canon IRC-4580 printer:

- Replace OPC drum
- Replace transfer roller
- If performed 2 away and the error does not clear, you should replace ganuine toner cartridge .
- Replacce HVPS board.

Oct 29, 2016 | Canon Office Equipment & Supplies

1 Answer

My brother mfc 7440N prints splotches every 3-3.5" on every page printed. This occurred with the previous and new toner cartridges. How to fix?


For crying out loud.

The "blotch" is caused by damage to the drum or to the toner fusing roller.

If the "blotch" is loose toner (in other words you can smear it) then the fuser roller is damaged and that assembly needs to be replaced.

If the "blotch" is fused (in other words you cannot smear it around) then the drum is damaged and that assembly needs to be replaced.

The original MSRP for the Brother MFC-7440n in 2008 was $429 (US) / 213 pounds [FixYa couldn't handle the pound sign!! =8-) ] (UK) / $499 (AU). The present street value is about $199 according to Brother ( http://www.brother-usa.com/MFC/ModelCompare/4/MFC7440N_MFC7460DN#.UXBKKKLq3yA ).


A drum unit is $80 (Amazon) or $115 (Staples).

That same $200 could get you a Canon Pixma MX-922 (Canon http://www.usa.canon.com/cusa/consumer/products/printers_multifunction/office_all_in_one_inkjet_printers/pixma_mx922). Inkjet? Yes. But fast. Airprint. 2-sided ADF and copying. Auto-duplexing. CD/DVD disc printing. Frankly, if I didn't already have an Epson 835, I would buy this one. My old Canon 820 still chugs along as beautifully as the day I got it (about a zillion years ago).

For $50 more you can get a top-rated laser, their imageCLASS MF4880dw (though oddly, without Airprint - for Airprint in a Canon laser, you have to step up to the big boy: the imageCLASS MF8580Cdw).
.

Well. Have fun!

Mar 31, 2013 | Brother MFC-7440N Laser Printer

3 Answers

I get blotches on my printouts on my Brother HL5270. I have tried "cleaning sheets" and also tried the toner and drum from another Brother printer which prints OK - still get the blotches, so...


First, the print head may be getting clogged and you need toremove the print head and soak (a couple of hours) it in warm distilled waterto dissolve the dried ink. Blot the print head dry with a lint free cloth beingcareful not to rub the electronics. Second, the new ink cartridges (if they arenot OEM) could be causing a problem. Reloaded or second party cartridges maynot always match the specifications for quality required by the printermanufacturer and may accelerate "gumming of the print head". Anotherpossibility of this problemis toner leak. Check if your toner leaks in the rubber filter and cause it to fall and the quality of your prints badly. Hope this willhelp you. Good Luck.

Aug 01, 2011 | Brother HL-5270DN Laser Printer

1 Answer

Our Hp 5550 prints thin vertical black lines on high res images. They are evenly spaced (3cm apart on an A4 print).


This is caused by a damaged drum. The drum is the long metal cylinder inside the toner cartridge. You will have to replace the hold cartridge. You should be able to flip a plastic cover on the toner and see the drum. If it has black toner lines then it usually means the drum is scratched and there for toner fills the scratch and produces lines.
Replace the print cartridge (toner cartridge) and the lines should go away.

Jul 19, 2011 | HP LaserJet 5550 Printer

1 Answer

Toner blotched on printed material When printing


If the line has a 1/8" white margin on either side, clean your glass and mirrors.

If the line is all the way across your page, consult your users manual for cleaning the sawtooth electrode (open the front door and take out your waste tank, there is a green rod on each drum cartridge you can pull and hear a zipping noise) and cleaning the laser lens (there should be a cleaning wand under your waste tank, turn pad side down and insert in the gap underneath your drum cartridge)

Jan 14, 2011 | Sharp MX-3501N All-In-One Printer

1 Answer

Printer wants toner cartridge replaced, though not empty


unfortunately the drum within the cartridge has reached end of life so changing to a new drum cartridge would resolve this issue.

Mar 25, 2010 | Panasonic KX-FLB801 All-In-One Laser...

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

2 Answers

Brother MCF-7340 first time toner replacement


If this model comes with the drum separately of the cartridge, only replace the cartridge. There's no need to change it every time. until prints start to get lines or dots. Don't expose the drum to light too much.

Jul 30, 2009 | Brother MFC-7340 All-In-One Laser Printer

1 Answer

Laserwriter 8500 prints splotches all over the page.


Toner bubbles are characterized by large blotches of color toner on
printed pages caused by color toner leaking from cartridges directly
onto the transfer drum.

Solve the problem of toner bubbles by checking the manufacturing
codes on the toner cartridges and replacing cartridges as needed. Compatible carts are notoroius for this so don't use them.

Heat-stamped on the toner cartridge, opposite the label-end of the
cartridge, is a manufacturing code. If a portion of the code does not
match the list below, replace the toner cartridge.

Use toner cartridges that contain any of the following manufacturing
codes:
 9I
 9J
 9K
 9L
 and any cartridge that begins with the numbers 0 through 6 in place of
the 9

Jun 08, 2009 | Apple LaserWriter 8500 Printer

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