Question about Brother MFC-8840D All-In-One Laser Printer

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The pages that print are dark with toner all over the paper.

Would this be caused by a dirty drum? I have changed the toner twice since buying the printer 5-6 months ago. How do we clean the drum? or does it have to be replaced?

Barb

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Barb,
1) if you are refilling the toner cartridge, it may be the blade and roller need to be replaced.
2) if you are using a high yield cartridge, the drum unit will need to be replaced every 2 1/2 cartridges.
The yield for the drum unit is every 20K pages. The drum unit may also be remanufactured.

Posted on May 26, 2009

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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

Printed pages look terrible...


I'm more familiar with HP printers, but it sounds like a fuser is bad. The fuser effects print quality as well. If you've replaced the toner, as you have.

Apr 24, 2009 | Sharp FO 5550 Plain Paper Laser Fax

1 Answer

Bad photo quality after changing drum


your laser printer
1) print color quality is now distorted that means print skew (technician called)
2) print tint means the print color not enough density,
3) print mottle means print dirty
you may try
1) print distorted--- find out the skew adjustment from your printer manu, it is adjust the image before transfer to the drum.
2) print skew could be happened when the drum replace install not very accurate, so install it more carefully.
3) print tint---you may increase print density from the manu, not fix,
4) print tint---the toner caridge near life cycle or using the less compatible toner. so you have change the quality toner or cartridge (if near life cycle) to improve quality photo print
5)print mottle---toner quality ? or cartridge near life cycle also cause print dirty paper,

Feb 08, 2009 | Konica Minolta magicolor 2300DL Laser...

1 Answer

Dark Horizontal Lines on Faxes


on the drum unit that you put your toner inn, There is a blue or green slide lever move the slide back and fourth 10-15 times. If you have some van air blow that area out ( F.Y.I. if you do this some toner will fly out ) if this does not take care of it the drum unit my be bad,

do a 1/2 print test. copier something with a lot of print. open front cover when the paper is 1/2 way through the machine remove drum. Look art the paper and the green drum if the marks are on the paper & drum then the drum is bad. If not the fuser asm is bad, the part that gits hot when melting the toner on the paper,

Jan 29, 2009 | Brother IntelliFax-2820 Laser Fax

1 Answer

PRINTING IS DARK


Dark copies (whole pages) are usually a result of poor charge of the drum. Drum is that green thing (usually, seen blue ones too). You get text and graphics in places, where the drum has been discharged (light discharges drum). So if everything is dark - the drum is discharged fully, or not charged at all. Look for bent, dirty or missing connector plates, springs, paper covering contacts. If you get lines it could also be the fuser (hot thing) - needs replacing. Everything depends on how the copy looks like, I would have to see it. Hope this is helpful somehow ;-)

Aug 28, 2008 | Brother HL 5140 Laser Printer

1 Answer

HP laserjet 2100


You could do whats called a 1/2 test...put paper in the mp tray, do a print and when there is only about 2-3 inches of the paper sticking out the mp tray open the toner lid and lift out the toner cartridge..pull back the toner drum protector/flap and look at the image on the drum or the image that was about to go down on the paper...is it nice and dark on the drum..if so then you have a toner transfer issue...getting the toner from the cartridge to the paper. If this is the case then you may want to start with a new transfer roller. If the image is not dark on the toner drum then this an image formation problem. Some of the solutions here are bad toner cartridge (suggest using an OEM until problem isolated)....bad laser scanner or a dirty scanner....or a bad high voltage power supply ...

Inkworks

Apr 17, 2008 | HP LaserJet 2100 Printer

1 Answer

Faded print on left hand side of paper


This type of printing defect is normally caused by 1 of a few problems - the easier one first:

1. Toner cartridges sometimes do not have the toner evenly distributed - close the toner cartridge and inspect the hopper right below it for even distribution of toner.

The harder ones:

2. This type of defect can also be caused by dirty charging section - for the drum to pick up the toner it must be charged electrically prior to exposure - if the charge grid is not clean then it will not give the drum an even charge - not sure were this is in this printer yet - looks like it comes as part of the drum kit so this should not be causing this issue.

3. The last and most difficult to check is paper alignment with the drum - is the paper contacting the drum evenly - look for possible problems in the paper path with the drum unit removed - look for something uneven around the area were the paper contacts the drum

Mar 27, 2008 | OKI B4350 Laser Printer

1 Answer

PRINTING PROBLEMS


Have you tried a New Drum Cartridge?
It sounds like the drum cartridge is bad. Do you know how old the drum cartridge is or how many copies are on it?
If you take the drum cartridge out (Do not tip this upside down or touch the drum) you should be able to see a shiny long cylinder called the drum underneat the unit. Does it look like its covered with toner?
If it is covered with toner, then the cartridge needs to be replaced and that will take care of your problem with the dark copies.
If its not covered, then it could be a dirty optics which would require for your machine to be serviced. But 99 out of 100 times its the drum cartridge.

Hope this helps.
good luck.
mac

Feb 12, 2008 | Panasonic Panafax UF-585 Plain Paper Laser...

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