HP Color LaserJet 8550

How to Identify and Fix Common Problems ?

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Ghost prints happen when the drum or fuser unit within your printer become faulty. Because a fault with this element won`t heat the particles of the toner to a high enough temperature, the marks being made on the paper are much lighter in colour and appear more faded than typical documents.
What causes ghosting? The most likely culprit is either the imaging drum unit or the fuser unit, however humidity and the incorrect paper type can all play a role in ghosting. Ghosting is often caused by a malfunctioning imaging drum unit.
Usually a quick paper setting adjustment will clear up a ghosting issue right away. Run a cleaning – Most printers have a cleaning function built into the machine. Run this a couple of times to attempt to clear up the printing issue. Inspect the drum – Sometimes excess toner powder can stick to the drum.
Binocular double vision is the result of misaligned eyes. This can cause the images you see to be off, resulting in ghost images.
The only real workaround is to remap your keyboard so that the key combination you want to use is one that your keyboard is able to register. Remapping your keyboard means changing the response that each key gives. For example, you can remap your keys so that when you press the A key, your computer types a B.
Ghost images, like those created by cataracts, usually are seen by only one eye. Ghost images can occur after corneal surgery, such as LASIK, PRK or a corneal transplant. Most of these problems disappear when the problem is resolved, like after cataract surgery or when the refractive surgery heals.
Relationship experts and psychologists agree that people who ghost are avoiding an uncomfortable situation. This evasion, while perceived as a lack of regard, is often because they feel it`s the best way to handle their own distress or inability to clearly communicate.
The most common cause of ghosting in a personal relationship is to avoid emotional discomfort in a relationship. A person ghosting typically has little acknowledgment of how it will make the other person feel.
Ghosts can occur when leftover ink from a previous print run gets trapped in the nooks and crannies of your screen mesh, or when underexposed emulsion reacts with your screen cleaning chemicals.
Description: Ghosting is a photographic term used to describe the unwanted double-exposure of an object within a single frame. It occurs when too much light enters the camera lens and causes identical objects to appear more than once in the same photo.
Ghost images are light images of pages that were previously printed that are appearing on the currently printed page. This is usually caused by the erasure lamp or cleaning blade. The cleaning blade is part of the toner cartridge and is easier to replace than the erasure lamp. Try replacing it first.
Ghosts can occur when leftover ink from a previous print run gets trapped in the nooks and crannies of your screen mesh, or when underexposed emulsion reacts with your screen cleaning chemicals.
Dots are typically caused by foreign material inside the machine (for example, paper dust, glue from labels or envelopes, paper clips, staples) sticking to or damaging the surface of the drum. Toner builds up on or sticks to these areas on the drum and creates black dots on the printed page.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Samsung CLP-300 Image Ghosting
ANSWER : Hi there – did you resolve your issue? It exactly mirrors the issue with my Samsung CLP-310. Each print carries across to the subsequent print as a ghost/smeared image and I diagnosis has revealed the transfer belt (ITB) has smeared toner remaining post each print. I was therefore considering replacing the Transfer Belt, but fear it is not the issue as you found. Whatever should be removing the toner from the Transfer Belt post print, is not, and then I get smeared ghosting on subsequent prints of the last print. The only mitigation is to print 5 blank pages post print, then the ghosting/smearing reduces to nearly zero (proving that the toner is being removed partially at least)…. Any help gratefully received.

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HP Color LaserJet 8550

replace with new imaging unit error
ANSWER : samsung clp 365w firmware

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HP Color LaserJet 8550

replace imaging drug
ANSWER : Open the top lid. Grab the handle in the middle of the drum and pull up.

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HP Color LaserJet 8550

Print Quality Issue (Streaks and Ghosting)
ANSWER : Streaks are mostly caused by internal drum wiper blades that clean left over toner off the drum to prepare it for a new image. Ghosting is caused by a leftover image on the drum. The 6 inches that you mention would be the circumference of the part that is causing it. Fusers will never cause either problem.

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HP Color LaserJet 8550

image drum message
ANSWER : You don’t have to replace it until it wears enough to affect the print quality. You’ll get spots or stripes. Here you go on a free reset. If you read the thread, someone says the procedure also works on your model. http://www.fixyourownprinter.com/posts/33634

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HP Color LaserJet 8550

Ghosting
ANSWER : NO. Ghosting can be caused by either the toner cartridge or the fuser assembly. To determine which, you do a half-stop test. Feed the print job from the manual tray. When you see the tail end of the paper start to enter, open the door. Take out the cartridge. Look at the print. Ghosting means a bad toner cartridge. No ghosting means a bad fuser.

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HP Color LaserJet 8550

Laserjet 4250 print quality issue (see image)
ANSWER : It looks like a fuser problem. One way to prove it is with the half-stop test. Put a sheet in the drop down manual feed tray. Send a print job and watch the paper. When the end of it is about to enter the printer, open the lid and take out the toner cartridge. Look at the printed image. If it looks OK, then it is a fuser problem. If not, then it is a toner cartridge issue since it hasn’t gone through the fuser.

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HP Color LaserJet 8550

reset toners and image drum life
ANSWER : They both have chips that need to be replaced. There are videos on YouTube that show how to refill the toners and how to replace the chips.

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HP Color LaserJet 8550