20 Most Recent HP Color LaserJet 2550n printer + HP Color Training and extended warranty ;U4929E, Next-Day exhange... Questions & Answers

Remove toner cartirdge and check gears on cart as well as all of the gears you can see inside the unit for any signs of wear. You may also need to remove the fuser assembly and perform the same task with the gears back there. MAKE SURE THE POWER HAS BEEN TURNED OFF AND THE PRINTER UNPLUGGED FOR AT LEAST 30 MINUTES BEFORE ATTEMPTING TO TOUCH THE FUSER. IT WILL BE HOT!!! Most frequently these kinds of noises from the printer are due to gears slipping. Sometimes simply reseating the fuser assembly or toner cartridge will fix it. If there appears to be excessive wear on any of the gears, you will need to replace them.

TONER CHIP on CP2025 printer: This resource may help http://resources.lasertekservices.com/hp-smart-chips-overriding-this-lockout-mechanism-with-reset-chips/ Gives types of chips to use, sales in USA, and certain things to take note of. The toner reset chip replaces the original HP ID chip and is designed to be used only on refilled HP cartridges. It is not recommended to force toner cartridges to run on empty, as this can cause damage to both the printer and the toner cartridge. The reset chips are dedicated to one color only, so that user can not swap toners. As for actual physical installation, just push the new ID chip in until it clicks into place. The correctly manufactured ones should be a snug fit. I have seen techs using a drop of contact glue behind the chip-board to secure it. Copper pads face outwards towards matching printer pins. See photo for polarity 'square' pad. My printer is Samsung, not HP, so your toner cartridge may be a different shape.

Is the print quality poor on left side for all colors? You may have one bad cartridge. Create a paint document with Yellow, Magenta and Cyan squares on the left side and see if one color prints better than the others. You can also gently shake the cartridges to redistribute toner.

Open front door, check on the color facing you, close door, press the color cartridge to advance the carousel to the color you need to replace, pull out the cartridge and replace with new one.

If you look at the transfer belt, it will probly have yellow all over it. More than likely, by have a bad yellow toner.

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

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what issue for blank copy page comming in hp clj 2550

Make sure you don't have anything qued up in the printer, flashing usually means something is printing...

Instructions are usually included with the new unit.

Open top cover. grasp green handle and lift out.. replace with new one...


http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=115&prodSeriesId=388394&prodTypeId=18972&prodSeriesId=388394&objectID=c00140035

Do you have more than one computer in your office?
Can you connect the printer to a different computer,
and then access the manufacturer's web-site: http://support.hp.com
and download the device-driver for your printer, and your Operating System, and install that device-driver ?
If it prints on that computer, then there is something wrong with the software on the first computer.

http://h20000.www2.hp.com/bizsupport/TechSupport/DriverDownload.jsp?pnameOID=388402&locale=en_US&taskId=135&prodSeriesId=388394&prodTypeId=18972

hi try the above link.

check on the printer driver if the paper size is set to the type of paper that you are using.

This could be a very serious problem. Have it check by a qualified technician


Good Luck

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