Unknown Printer

How to Identify and Fix Common Problems ?

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Toner is the powder ink that latches on to the paper to create text and images. It is stored in the toner cartridge. An image drum is the unit that copies the text and images from the computer and then transfers them to the paper, along with the toner.
An image drum is a vital part of a laser printer that is responsible for transferring the toner and image or text to paper. It has several different names, it`s also called the imaging unit, drum unit or photoreceptor drum.
The imaging drum is the heart of the laser printer or the copier. It transfers the print image, consisting of toner, onto the paper. An imaging drum is also called OPC, imaging unit or just drum by some manufacturers. A dirty or worn out drum reduces extremely the printing quality of a laser printer.
The most obvious is most common on laser color printers and can be detected by a flashing message on the printer display screen. Other signs of a bad printer drum include printing blank pages, printing gray pages and strange sounds coming from the printer as it prints.
The toner cartridge contains several components including the color pigment used to create letters and images. The imaging drum is the unit that transfers the toner to paper by following the principles of electrophotography. Not all laser printer models require both toner cartridge and imaging drums.
Developing – The toner is applied to the latent image on the drum. 5. Transferring – The toner attached to the latent image is transferred to the paper.
Laser printers have a drum. A primary charge roller (or in some cases a corona wire) applies between -500 and -1,000 VDC to the imaging drum. This charge neutralizes the photosensitive surface of the drum and prepares it to receive an image.
But the laser printers need the assistance of a photosensitive imaging drum (popularly known as the printer drum), to transfer the fine powders from the toner to the paper.
The drum uses static electricity to attract powdered toner to the drums cylinder. The drum rolls the toner onto the paper in the form of your print. The toner is melted & pressed onto the paper by heat from a fuser as it passes through its rollers. Your print comes out of the printer.
The drum unit may need replacing if you notice the printer producing blurry, low-quality images. Black or colored toner spots on printouts also indicates a failing drum unit. In some cases, horizontal lines may develop across the printout every time the paper passes the failing part of the drum.
There are many factors that determine the actual drum life, such as the temperature, humidity, type of paper, type of toner used, number of pages per print job and so on. Under ideal conditions, the average drum life is estimated at approximately 12,000 pages.
An image drum is the image carrier or imaging device used in some non-impact methods of printing. The image being printed is created on the surface of the image drum, which then transfers toner onto the substrate in the correct position to form the final printed image.
An imaging drum is an essential part in the operation of your modern laser printer. Along with the toner and roller, the imaging drum helps finalize the ink-to-paper process, receiving the image or text and then transferring it to paper.
The drum-unit is an important component in the copier/MFP/laserprinter. Its primary role is to attract the toner particles by electrostatic polarities. Also known as Photoconductor-Unit (PCU) or Imaging-Unit (IU), the design of the drum-unit vary depending on the brand and model of the device.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Toner drum blades.
ANSWER : http://www.partsmart-corp.com/wb-bx-wiper-blade-hp4vcanonbx/28395

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HP 2840 All-in-one ,image drum counter reset
ANSWER : Hi, My HP 2840 is showing replace supplies on all but black , to print color all I have to do is send print command before the printer shows ready and it will print full color , also the windows test print works at any time ? It’s a pain but it works !

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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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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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Toner dots fused to drum
ANSWER : You can try alcohol on a cotton pad to remove the toner. Wipe dry afterwards. If the drum does not have nicks in the coating, it should be OK.

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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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41.3 unexpected paper size on a 4050
ANSWER : I have 3 white plastic levers towards the back of it. The top is set in the next 2 are out. Top one is loose. I have a two tray so I switched 2 to 1, and 1 to 2. still get the 41.3 Help

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HP 2600n LaserJet leaking toner?
ANSWER : yes, the refill toners are about 3 times more lonely to cause quality issues.

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