Question about HP LaserJet 2840 Printer

2 Answers

Printer only prints partial page

The first half of the page prints properly, but fades to white on the second half. The printer has new toners, fuser, & drum units and had just been serviced recently.

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  • Foxy007 Feb 27, 2008

    i have a printing problem, the first half of the page copies fine then fades away to a blank white at the other end.

  • stuartme Mar 14, 2008

    I have a similar problem whereby I have replaced the drum and cartridges, but the image is printing one half OK and the other fading to white. This happens length ways down an A4 sheet.

    regards
    Stuart

  • smjlfn Dec 22, 2008

    I have the same issue to. The drum and all the ink has been replaced. I need this printer to work. Help.:0) Thannks.
    Sharon

  • Anonymous May 01, 2009

    How to fix the "carousel central axel"?

  • tranchitran May 09, 2009

    i have a printing problem, the first half of the page copies fine then fades away to a blank white at the other end. HP 2840

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Hmmm...did you get new printer drivers when you re serviced machine..

www.hp.com


sort of like changing the fluids after an engine job

check your computer warranty here 4 FREE

Posted on Feb 27, 2008

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The carousel central axel has been twisted.

Posted on Mar 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 Printers & Copiers

1 Answer

My hp4p has a 2"


check half page test..give print command when it printing half page stop the printer open the door remove the cartridge take out paper see is this quality what you are observed. if yes its needs to clean the laser scanner assm.. if half test page is good then check the fuser assm, might be toner partials deposited on Teflon sleeve..its avail replace teflon sleeve or fuser..

Sep 06, 2011 | HP LaserJet 4 plus Printer

1 Answer

My hp1012 is printing dark with shading on the pages and shadow or echos. Can something be replaced or fixed?


with this issue, you pretty much have to run a half way test unless you have the convieniance of another toner to try. basically, it's either going to br your toner or your fuser and a halfway test will determine this if you don't have another toner to try.

The Half-way Test

You will need to print a page and open the toner lid when you think the paper is underneath the toner cartridge. This will stop the printing so you can pull the toner cartridge out and look at the partially printed paper. It may take a few tries to time this test correctly so the paper stops under the toner but not completely into the fuser.
1. Print a test page from Tray 1, the "fold-down" Multi-Purpose tray on your printer.
2. Just as the test page completely disappears into the printer, open the toner lid door. The print job will stop, sensing an error.

3. Pull the toner cartridge out, and you will find the test page sitting directly underneath the toner.
4. Carefully remove the page by gently pulling the page upwards & free from the toner cavity. Careful! The toner has not yet been fused to the paper, so the print can be somewhat messy on your hands and may smudge easily.

Examine the printout.
1. If you do not see the print defect on your test page, that means the defect is being added later in the print process by the fuser. Fusers are the main component in a maintenance kit; click here to view our selection of maintenance kits for various LaserJet printers.
2. If the print defect is visible on this printout, that means the print defect is occurring before the fuser. Try replacing the toner cartridge (click here to view our selection of toner cartridges).
If you determine the print defect is occurring before the fuser, and swapping toners doesn’t fix the problem, there could be several things causing the problem. In the order of most likely to least likely: you could have two defective toner cartridges, the transfer roller might be faulty, the laser scanner could be dirty or defective, or the high voltage power supply could be bad. You might want to email or call since these scenarios are not as common.

Order Fuser Here!

Order Transfer Roller Here!

hope this helps and if so please mark FixYa!!

Jul 24, 2010 | HP LaserJet 1012 Printer

1 Answer

My printer worked very well until I changed the toner. I see dust around the back toner. I brought the generic toner. The store manager said that was the problem. Then I brought new HP toner. It is the...


Smeared output can result when you refeed a printed page into the printer to make a double-sided page. This happens because the rubber rollers that grip the paper to pull it into the printer can pick up toner from the first side’s printing and smear it. So before replacing parts, this is an easy thing to check. Printing multiple pages consecutively will make the pages print progressively cleaner or you can clean the rollers with rubbing alcohol.

Smeared toner also happens because the nonstick coating on the fusing roller is scratched or has baked-on debris. This can happen if the printer is in a dirty environment especially. If you are comfortable removing the fuser, you can try to clean it with a soft cloth and alcohol, but make sure you let it cool down first!

Finally, if this does not resolve your issue then make sure the fuser is heating; toner that is not heated properly will fall from the page and smear. If the thermostat is bad or the fuser not working properly, you will most likely need to replace the entire fuser assembly. This will be pretty expensive to repair so hopefully it's one of those other issues.

Apr 08, 2010 | HP Hewlett Packard LaserJet 2605dn Printer

2 Answers

I'm getting ghost images on multi prints to the point it is unreadable, is this the drum or fuser?


The only way to tell is to start a print and power off when print is still inside. If you see the ghost before the fuser it's the drum, if clean before the fuser, it's the fuser. You can also open the back door and look at the fuser roller with a light, the fuser roller should be clean but if the roller has images it's time for a fuser.

Feb 19, 2010 | Brother DCP-7020 All-In-One Laser Printer

1 Answer

The print on the right side of the page is faded.


Could be the fuser, or the drum is not getting the charge on that side.

Dec 08, 2009 | Konica Minolta PagePro 1350W Laser Printer

1 Answer

Only printing 1/2 of page and the other half is so faded you can't see it.


Sounds like the scanner, toner, or fuser assy. Try the toner first.

Nov 19, 2009 | Samsung CLX 3160fn All-In-One Printer

1 Answer

Phaser 7300 - one color fading on diagnostics page


Are you using third party toner? That is one thing that causes that problem. Use only xerox toner.
The other thing is that your image unit could have come defected, if it was brand new. Try changing the image unit and that should fix that problem. Good luck. 016-1993-00 image unit & toner 016-1977-00

Oct 02, 2009 | Xerox Phaser 7300DN Laser Printer

1 Answer

Info Print 1352 one half faded other half normal print.


You require a replacement transfer roller, if you remove the toner cartridge and look in the printer, you will see a roller which sits underneath the toner cartridge, this is what you need to replace

Jan 13, 2009 | IBM Infoprint 1352 Laser Printer

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