HP Color LaserJet 4550

How to Identify and Fix Common Problems ?

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Why is my printer printing yellow not red? It is most likely that your image is yellow where you were expecting it to be red and you may also notice that blue parts of the image appear turquoise instead. Both of these effects are caused by a lack of magenta ink/toner on your prints.
One of two issues can cause this. The toner cartridge may not be fully seated into the photoconductor unit. This can cause the seal between the two to break, allowing toner to leak out. The other possibility is that the toner cartridge or the photoconductor unit may be damaged.
Black, cyan, magenta, or yellow vertical lines or streaks can be caused by a dirty corona wire, a toner cartridge, or the drum unit. To identify if a corona wire, toner cartridge, or the drum unit could be causing the issue, follow the steps below. 1.
The Status light stays yellow and on steady (not flashing) normally to indicate that there is data remaining in the printer`s memory. Press the GO button once to print the remaining data in memory.
The light bar glows amber if there is a printing error. Look at the other lights on the printer to find and resolve the error you are experiencing. With the printer turned on, disconnect the power cord from the rear of the printer. Unplug the power cord from the wall outlet.
When it is not fusing correctly, toner can become smudged on the paper if non-fused toner sticks to the rollers. In the case of a bad drum or leaking toner, it is best to replace the entire toner cartridge. If you suspect a bad fuser is at fault, it is best to have the laser printer serviced at a repair shop.
Cleaning a Toner Spill

Unplug the printer from the power socket and let it cool for at least an hour. Remember, there are heated components inside laser printers. Use a postcard or a scraper to scoop out as much toner as possible. Next, use a soft and dry lint-free cloth to wipe a toner spill.

For cleaning, HP recommends using HP Equipment Cleaning Wipes, but you can use an HP-approved lint-free wipe and deionized or distilled water. Note: If dark spots appear on back side of prints, clean drum screen. Note: If minilab prints more than 2000 prints each day, clean drum screen up to twice daily.
Take a warm damp paper towel or coffee filter and blot the cartridge with the printhead facing down onto the paper towel. This will remove any dried ink on the printhead. Then, hold the cartridge with the printhead facing down against a dry paper towel for 2-3 minutes. A dry paper towel will wick the ink out.
Type of Documents Printed

If you print in mostly black, your black cartridge will naturally run out faster than the color cartridges.

It`s usually because the printhead inside your printer is clogged or dried out. Like with most printers, Canon printheads can clog due to ink or dust drying up and collecting in the nozzle.
It`s usually because the printhead inside your printer is clogged or dried out. Like with most printers, Canon printheads can clog due to ink or dust drying up and collecting in the nozzle.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

HP 4250, error 54.1 Remove sealing tape from toner
ANSWER : I am having the same problem as everyone else can someone send me a new link or the pdf

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HP Color LaserJet 4550

HP CLJ 8550 does not recognize new Magenta toner
ANSWER : There’s a menu option to tell the printer it has a fresh toner cartridge.

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HP Color LaserJet 4550

HP laserjet toner wiper blade fix?
ANSWER : I’m having trouble locating wiper blades & doctor blades for sale online. Can anyone suggest sources, please? I have several HP 92298X cartridges that need them.

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HP Color LaserJet 4550

Resetting of chip for hp toner Q6000A
ANSWER : HP Color Laser Jet 1600 – Thanks for all the above information. Even though the 1600 is a different printer, I followed the above: “…go to “System Configuration”; then to “Print Quality”; I then get a choice of “Replace Supplies” and then “Overide Out”…” Selecting “Overide Out” got my 1600 back to printing, although I did have do perform the steps TWICE before it seemed to take affect. Not sure what was going on, but I’m happy that people put the information out there for the rest of us to have.

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HP Color LaserJet 4550

Good toner cartridges still available for HP LJ 4V?
ANSWER : Try directpreciseimaging.Com in Calif. Don’t worry about resistance unless there is none.

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HP Color LaserJet 4550

Expired Toner and Suggestions for Source of Toner
ANSWER : Hi Frank, I had a very similar question two weeks ago, but my “old beloved workhorse” is an HP Laserjet 4L. From the good old days! I too had made bad investments in “new but old truly HP” toner cartridges, hoping to coax more life from my printer. I ended up choosing to try a remanufactured cartridge from www.4inkjets.com. It was a gamble, but the website said they had a 100% satisfaction guarantee. And I can tell you they have lighting fast service. I’ve now printed 50 pages without a flaw. JOY! While the cartridges and technology are different, I suggest you try the same place. And good luck!

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HP Color LaserJet 4550

HP laser jet 3015 "Upgrade Error Call HP Support"
ANSWER : rgtr

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HP Color LaserJet 4550

HP 2550L toner cartridge override
ANSWER : thank you very much. works fine. I’ve looked for this for a long time! (HP 2550L user)

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HP Color LaserJet 4550