Question about HP LaserJet 2550n Printer

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Image drum light is on and printer will not print

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  • 81 Answers

You will need to replace the image drum assembly. If it's a 2550 then the part number should be Q3964A . Once you replace this the counter automatically resets and the printer will be back and working

Posted on Oct 13, 2009

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Posted on Jan 02, 2017

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SOURCE: hp2820 noise when printing

Try substituting a new imaging drum. The problem may be a bad bearing.

Posted on Oct 10, 2008

  • 670 Answers

SOURCE: samsung laser printer prints faded in center

You probally had the imaging unit replaced. The image drum is part of the imaging unit. The problem you described is a common problem with this printer. The cause is that the developer blades in the imaging unit gets coated with toner, and that coating blocks the toner from getting onto the paper to make the image. It get less and less and it shows up as light printing.
It can be fixed by replacing the imaging unit or you can clean the blades yourself if you are handy. If you look at my tips section, I have a detail instructions with pictures showing you how to do it. Hope this helps.

Posted on May 01, 2010

BaronVonNuke
  • 1915 Answers

SOURCE: We just replaced the imaging drum on our HP 2840.

A repetitive defect at that spacing points to the transfer roller. This is the roller in the bottom of the drum/cartridge cavity. Most likely you will need to aquire a Q3948-67920 transfer roller kit.

Posted on Mar 16, 2011

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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

Printing too light


For understand the issue, little bit technical knowledge required: Take half test page, check how much dark image formed on paper, check on cartridge drum how much dark image created?..(half test page: while printing half of the page switch off the printer, take cartridge out as well as take half printed page)If half page print quality is good on paper: Fuser faulty(teflon sleeve)If half test page print not good & image on drum is OK: Fault with Transfer roller or its bios voltage contacts..If there is proper image on paper & image drum: Problem with laser scanner assembly..find the problem, then remedy is easy..

Feb 02, 2012 | HP LaserJet 3030 All-In-One Printer

1 Answer

Hi, we have the hp color laserjet 2840 series and we are getting a supply error (10.1004). The picture shows that there is a problem with our imaging drum. We bought a brand new imagind drum and it is...


Reseat the toner cartridge. Turn the printer off, and then back on again. You may want to try a new cartridge, but if that does not eliminate the error, call your HP support line. If the imaging-drum light is still blinking but the Attention light is not on, you must replace the imaging drum before the printer can continue printing. The imaging-drum light might be blinking by itself or at the same time another light is on or blinking. If another light is also on or blinking, turn the imaging-drum light off in the simulator and turn the other light on or blinking to isolate the condition. The printer has determined that it cannot read or write to the e-label on the imaging drum.Reseat the imaging drum, and then power cycle the printer. If this does not work, replace the imaging drum. If the imaging drum light is still blinking but the Attention light is not on, turn the printer off, and then back on. If the problem persists, replace the imaging drum E-label reader. The imaging-drum light might be blinking by itself or at the same time another light is on or blinking. If another light is also on or blinking, turn the imaging-drum light off in the simulator and turn the other light on or blinking to isolate the condition.

If Hope that this helps,, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response. Thanks,Joe


Feb 04, 2011 | Office Equipment & Supplies

2 Answers

Drum light flashing


We have just changed our drum unit but the drum light is still flashing. The printer is printing though. Any suggestions?

Apr 12, 2010 | Brother HL-2150N Laser Printer

1 Answer

Imaging drum light is on, did open the front door and did press the delite butten and then the warnig light is on...i can not print


Yea, these printers will not print if it detects the imaging drum needs replacing. I had the same problem on my printer and it wouldn't work until I actually replaced the drum.

Nov 19, 2009 | HP LaserJet 2550L Printer

1 Answer

Light copies


Hi katie44l:
Depending on the eviroment the printer is in depends on weather you have dust on the laser lenses. If you are in a dusty eviroment then the laser mirrors may have excessive dust on them preventing the laser beam from giving you the print quality that you need. The only way to fix this problem is to open the laser scanner motor assembly and clean the mirrors. That will require an HP certified technician to service the printer.

Image formation system
Laser printing requires the interaction of several different
technologies including electronics, optics, and electrophotographics
to provide a printed page. Each process functions independently and
must be coordinated with the other printer processes. Image
formation consists of seven processes:
Print cartridge
As the focal point of the image formation system, the print cartridge
contains toner and houses the cleaning, conditioning, and developing
stages of the process. The print cartridge contains the photosensitive
drum, primary charging roller, developing station, toner cavity, and
cleaning station. By including these components (which wear,
degrade, or are consumed) in the replaceable print cartridge, the
need for many service calls is eliminated. The special photosensitive
properties of the drum form an image on the drum surface and then
transfer the image to media.
CAUTION The print cartridge does not include a light-blocking shutter. Do not
expose the drum to light, which can permanently damage the drum.
Protect the print cartridge whenever you remove it.

Hope this helps.

Jul 02, 2009 | Dell 3110cn Laser Printer

1 Answer

Hp deskjet 1513 all in one


Great you changed the toner cartridges but you may also need to do the following as well.

Imaging drum is low Light pattern c00189128.jpg Description The imaging-drum light is on. The printer continues to print without any action required until the imaging drum is empty. Action Order a new imaging drum. Have a good day

Jun 18, 2009 | HP Office Equipment & Supplies

2 Answers

Orange light is flashing and printer is not printing. It is not the crescent , not the triangle, but the one abve the triangle and below the colored catridge rotation button.


Imaging drum is empty or missing (Error 40204) Light pattern c00187081.jpg Description The imaging drum is empty or missing. The imaging drum light is blinking, and then printer stops printing. An error 40204 is written to the event log. The printer cannot detect the imaging drum correctly. Action
  1. Reinsert or replace the imaging drum.
  2. If the imaging drum light is still blinking but the Attention light is not on, turn the printer off, and then back on.
  3. Repeat Steps 1 and 2 with a new imaging drum.
  4. If the problem continues, contact HP Customer Care at http://www.hp.com/support/clj2550 or see the flyer that came in the printer box for other contact information.
Imaging drum e-label reader is faulty (Error 10004) Light pattern c00187081.jpg Description The imaging drum light is blinking, and then printer stops printing. An error 10004 is written to the event log. The imaging drum e-label reader is faulty and the printer cannot detect the imaging drum correctly. Action
  1. Reinsert or replace the imaging drum.
  2. If the imaging drum light is still blinking but the Attention light is not on, turn the printer off, and then back on.
  3. Repeat Steps 1 and 2 with a new imaging drum.
  4. If the problem continues, contact HP Customer Care at http://www.hp.com/support/clj2550 or see the flyer that came in the printer box for other contact information.

Apr 27, 2009 | HP Color Laser 2550N Printer

1 Answer

Change Image Drum light blinking


You have to reset the drum counter. Leave the front cover open Press and hold the "cancel" button until all the lights flash in sequence Close the front cover You should be good fro another 30 - 40 thousand copies. Hope it helps Ed

May 22, 2007 | Dell 1710n Laser Printer

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