Changed the imaging drum,the ready light is green. nothing will print.printer is hp 2550 laser jet series

Does the paper feed but not print?

By load the toner, if you mean inserting the toner cartridge.Then i will give you instructions.In laser toner printer, there is toner cartridge, and not ink jet cartridge.In laser toner cartridges, there is a black color toner power and it does have any liquid ink, which ink jet cartridges have.To remove the laser toner cartridge from hp laser jet 1100 printer, its simple.The front door open and old toner cartridge comes out.Just pull the front door towards you.While inserting cartridge.If you have problem, then take note that, sticker side of the cartridge is towards you.On the cartridge there is a rectangle flap, which you hold in your hand.This is meant for holding the cartridge, while removing and inserting cartridge.The stick side will be in your side.There is a green color drum, the drum side will be on opposite site.-------------- Still any problem.Keep updated.But i think that will help.Thanks.Helpmech.

Try a "head-cleaning" cycle -- if the ink inside the cartridges is not getting through the print-head mechanism, then nothing will reach the paper.

Given that a replacement HP printer will be inexpensive, when compared to taking the printer to a qualified service technician, I recommend that you responsibly recycle the printer, and buy a new HP printer that uses the same ink-jet cartridges as your current printer.

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

Hi,
first your printer connected to your PC and install the printer software for printing. After Installation you press the power button of your Printer, so your printer is on go for Printing Documents/Pictures.


Thanks

This is the imaging unit/drum light it has likely expired. try reinstalling it but you may need a new one.

Hope this helps

I believe you are being referred to the "Users Manual"
Do you still have the book that came with it?

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.

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.
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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.

You will need to replace the image drum. This is either due to the face that you have exceeded the number of pages/cycles that the drum supports or the drum has damage. If this is the drum that came with the printer, it is likely they shipped it with "starter" supplies which last a fraction of the time as the regular "full retail" replacement supplies. A URL for HP's instructions on how to replace tn image drum on the HPCLJ 2550 series follows:
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=125&prodSeriesId=388394&prodTypeId=18972&prodSeriesId=388394&objectID=bpl12241