Question about HP LaserJet 2550n Printer

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HP 2550 will not print. Green light flashes. I'm

HP 2550 will not print. Green light flashes. I'm asking it to print a page that is 159kb and I suspect it is too low on memory. Why is that? My son's Hp 2550N won't print either.

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If the machine is making "working noises" while it flashes, it is most likely calibrating. A good way to find out if the problem is due to connectivity issues with your computer is to turn the machine off, unplug for 1 minute, plug back in and turn on. Wait until the light is solid, indicating its ready to go, and then press and hold the green button until the lights flash. It should produce a demo print for you. If it doesnt, the problem may be with the printer, not the computer. Also, check in the "Printers and Faxes" settings in the control panel (if you are running windows) to see that the 2550 is set as the default printer.

Posted on May 07, 2009


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SOURCE: ml-2550

HP recommends to use genuine HP cartridges else it will damage the cartridge mechanism. Replace the samsung cartridge with genuine cartridge and check for the result.

Posted on Jun 03, 2008

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Hp 2550 test page

Press & Hold GO button(Green), once green LED flashes release the button.

Mar 20, 2013 | HP LaserJet 2550n Printer


How to print a configuration page from an HP LaserJet P1102w


The HP LaserJet Professional P1102w is a compact wireless desktop printer. It is very easy to set up and use. Unlike larger HP printers, the P1102w does not even have a true operation panel; it only has a power button, a cancel button, and a wireless button.

However, like just about every other HP printer, the P1102w has the ability to print out a configuration page that displays many of the printer's settings and statistics. This page is called the self test / device configuration page, and on it you can find the printer's page count, number of paper jams (broken down by section), amount of available memory, network settings, and more.

To print the device configuration page, make sure the printer is on and ready. The green light on the top left side of the printer should be lit. If the red light is lit or flashing, then there is a problem with the printer -- such as no toner or a paper jam -- and you won't be able to print the configuration page until the problem is rectified. You'll also need to have at least one sheet of paper loaded into the paper tray. Make sure the two side fences and the rear fence are snug against the paper to prevent misfeeding.

Press and hold the cancel button (the button with the red X on it) for about four seconds. The printer will warm up and begin making noise, and the green light will start to flash -- when these two things happen, you can release the cancel button. The printer will print out the configuration page, face down, and once it has finished the green light will stop flashing and the printer will quiet down.

on Jun 11, 2011 | HEWLETT-PACKARD Hewlett Packard P1102...


How to use all of the Toner in your HP 2550 series printer

Most laser printers on the market today use a computer chip to tell the printer/computer when it's empty. The chip does not have any kind of physical sensor to tell whether the toner is actually low or not, instead it keeps track of how many pages were printed using the toner cartridge. (there is a separate chip on each cartridge, so in a color printer there are 4 chips one of each color and one on the black)

The chips tell your printer/computer that they are low or empty long before the toner is actually low or empty. If you replace them when the computer tells you to you are throwing away a lot of good toner.

To make things worse, the printers will not print at all (color or b/w) once it believes that one of the cartridges is empty.

There are 2 ways to 'trick' your printer into not believing that a cartridge is empty.

(Solution 1)
The chips that are on the cartridges can be swapped out with new ones. There are several vendors that sell aftermarket chips for your 2550 toner cartridges. Do a general search for 2550 reset chip and you will find vendors that sell reset chips. You can also find them on eBay for around $20-$25 a set.

The chips themselves are very simple to replace. Use a small screwdriver and pry off the old chip. They are just held in place with a strong piece of double sided tape. If the old tape is still there and good, you can just put the new chip in it's place, otherwise stick the new one on with some double sided tape.

This trick can also be used to extend the life of your printer drum, as you can buy reset chips for it as well.

(Solution 2) A bit clunky, but this one is free
You can literally trick your printer into not reading the info from the chip and thus not stopping you from printing. This solution is not as nice and clean as the first one, but it does work and it's free. You will have to repeat this solution from time to time if the printer stops working.
  • Step 1: Power off your HP2550 printer.
  • Step 2: While the printer is off, press and hold the big green button on the printer.
  • Step 3: While still pressing the green button, power the printer back on using the power button (lower back corner on the left side of the printer).
  • Step 4: Continue to hold the green button while the printer initializes. During this time all of the front lights will turn on one at a time and then all but the first green light (the ready light) will turn off one at a time - this step can take several minutes to be patient and keep holding the green button.
  • Step 5: When all the lights have turned off except the front green light, release the big green button. The front lights with flash a few time, while they are flashing, press and release the red circle button 1 time.
  • Step 6: You may have to reload the printer driver at this point. If your computer has detected new hardware then go ahead and reinstall the driver.
Be aware
  • Some of the back cartridge lights (the back 4) may stay on or flash, this is OK.
  • The front green 'Ready' light will no longer be on, again this is OK.
  • If at any time your printer stops printing all together, then go through these steps again. I have had to redo this about 10 times over the past 2 1/2 years. It is a nuisance, but it saves a great deal of money.
  • If this does not work the first time then try it again. Each step must be done in order and correctly otherwise it does not work.
I have had my printer for almost 3 years now. The original cartridges that came with my printer stopped working because they told the printer they were empty about 2 1/2 years ago. I started doing this at that time and all 4 of mine (I have a 2550 color printer) are all still working and have not started to fade, so there was a lot of toner left when my printer said it was empty.

on Dec 30, 2009 | HP LaserJet 2550n Printer

1 Answer

I have an hp laser printer 2550. all os a sudden

What has wrong is the toner cartridge holder has jumped a tooth and thats what is causing it. It is a easy fix but very hard to tell you over fixya. Steven 818-888-0006

Mar 12, 2010 | HP Color LaserJet 2550n printer + HP Color...

1 Answer

Green horseshoe light is continually lit

If it is solid on, it means the printer is ready to print; no action is required. If it's flashing, it means the printer is processing data and should print soon.

If you are printing from your computer and nothing comes out, with the "Horseshoe" light staying solid, I suggest checking the connection between your computer and the printer, or at least the printer configuration. Most of the time, unplugging, then plugging cables back in does the trick.

Jul 06, 2009 | HP Color LaserJet 2550n printer + HP Color...

1 Answer

Printing problem

Turn off printer
Hold down green button
Power on printer. (cold reset)
In printer properties choose print directly to printer, then choose print test page.

Weird problem

Feb 06, 2009 | HP LaserJet 1320 Printer

4 Answers

Printing quality off? 2550 HP laser jet?

When installing new cartridges, it's always a great idea to perform a cleaning and recalibration of the machine. Below are the steps needed to do just such a task. You may want to print these out or save them somewhere for future reference as well. They are directly from the HP website.
Please rate the tip accordingly and thanks for using
Cleaning the printer
  1. Verify the printer is turned on and in the Ready state.
  2. Open the HP Color LaserJet 2500 Toolbox. Click Cleaning Page on the Troubleshooting tab, and the click Print (HP Color LaserJet 1500 or 2500) or Cleaning Page (HP Color LaserJet 2550). A page with a pattern prints from the printer.
  3. Remove any paper that may be in tray 1.
  4. Remove the page that printed and load it face down into tray 1.
  5. At the computer, press Clean .
Calibrating the printer There are two methods of calibrating the printer manual: at the printer or from the Toolbox on the computer. From the printer Turn the printer off and then on again. From the HP Color LaserJet 1500 or 2500 Toolbox on the computer
  1. Open the HP Color LaserJet 1500 or 2500 Toolbox in one of the following ways:
    • Double-click the HP Color LaserJet 1500 or 2500 Toolbox icon on the computer desktop.
    • Select Start , Programs , HP Color LaserJet 2500 , and then HP Color LaserJet 1500 or 2500 Toolbox to open the Toolbox from the Windows desktop.
  2. Click Diagnostic Tools on the left side of the screen on the Troubleshooting tab.
  3. Click Color Calibration to perform the calibration procedure.
From the HP Color LaserJet 2550 Toolbox on the computer
  1. Open the HP Color LaserJet 2550 Toolbox in one of the following ways:
    • Double-click the HP Color LaserJet 2550 Toolbox icon on the computer desktop.
    • Select Start , Programs , Hewlett-Packard HP Color LaserJet 2550 series , and then HP LaserJet Toolbox to open the Toolbox from the Windows desktop.
  2. Click Print Quality Tools on the left side of the screen on the Troubleshooting tab.
  3. Click the Calibrate Now button to perform the calibration procedure.

Nov 04, 2008 | HP LaserJet 2550Ln Printer

1 Answer

Color toners are empty

Press Green Tick, Right, -> System Setup -> Right, Right, -> Print Quality, Right -> Replace Supplies. Change from stop at out, to override at out. It'll let you print, and you'll get loads more out of your toner before the pages start to fade.
Dan :-)

Sep 30, 2008 | HP Color LaserJet 2600n Printer

2 Answers

Flashing Lights

From the User Guide:

Black, Cyan, Magenta, and Yellow Supplies Status lights
These lights indicate when a print cartridge is low (the light is on), or empty or missing (the
light blinks). The lights also indicate when a non-HP print cartridge is installed (the light
blinks and the Attention light is on).

If you don't have a User Guide click on the link below and save it for future reference.

2550n User Guide

If this solution has been helpful, please rate it. Thanks!

Jul 16, 2008 | HP Color LaserJet 2550n printer + HP Color...

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