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HP2840 REPLACED FUSER UNIT, IMAGING DRUM AND ALL PRINT CARTRIDGES STILL PRINTING WITH LEFT SIDE FADING FROM CENTRE

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Reseated and realigned the carousel, now printing perfect.

Posted on Mar 02, 2008

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Posted on Jan 02, 2017

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Hi i just bought a second hand konica minolta c350 and when i print something it is notting enough clarity. please anybody can help me .


I would first starts by removing the Imaging units that are locked with blue levers below toner cartridges one by one for each colour and use the cleaning tool that is provided on the door (metal rod with handle and a pad on the opposite). When you pull the Imaging unit all the way out, you will see inside a long strip of LED and next to it on left hand side about a 1-2 cm another strip of MICRO LED Array. This is essentially yor print head and it has to be spotless clean. Use the rod and padded end to clean each of the arrays. This will give better sharpness and clarity to your prints. Then put Imaging Unit back in machine and pull the blue stick from the Imaging Unit out-in-out-in. The next step is to do Stabilisation and Gradation adjustments. This can be done in Service Mode. This should improve your printing. If it doesn't then you have either worn Imaging units _or_ Transfer Belt _or_ incorrect settings on Fuser or Fuser being worn.

Sep 29, 2016 | Konica Minolta Bizhub C350 Digital Copier,...

1 Answer

Black print fading in & out . I replaced the black drum with a brand new one, but the problem still exists. I followed the instructon about rolling the drum before installing but its still the same....


If your printer prints like this:
slamfix_2.jpg
The problem is with the developer in the imaging unit. The problem can be fixed by either replacing the imaging unit for $100+ or you can fix it yourself by cleaning the imaging unit. You will need simple hand tools and if you are careful restore the print quality of your printer. I have a link to instructions that should help you http://www.fixya.com/support/r4120906-clean_developer_blades_samsung_clp_300 Hope this helps you.

Nov 30, 2010 | Samsung CLP 300 Laser Printer

1 Answer

OUR CM1017 MFP IS HAVING AN ISSUE WITH TONER ON THE PRINTED PAGE: THE LEFT AND RIGHT MARGINS, MAYBE 1 INCH INTO EITHER SIDE IS PRINTING BUT IN A FADED SHADE OF WHAT THE REST IS. CARTRIDGES ARE FINE BUT...


sounds like a imaging drum is getting old. they have a finite lifespan. Especially if the machine is used frequently. Look for an imaging drum replacement. Cheers.

Aug 25, 2010 | HP LaserJet CM1017 MFP All-In-One Color...

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I have a clp500 with vertical fading on the b&w. I have replaced both the transfer belt and the imaging unit (@ 25000 copies) and am still getting the fading if the printer sits idle for a period of...


Sounds like you may have wet toner, or was once wet toner. Ive worked on printers for years and I have actually found a few cartridges that had bad toner. Kind of like getting sugar or flower wet.
Also. sometimes the imaging unit won't charge the roller properly or the roller gets worn (I.E. Static Charge holds the toner to the drum until it is applied by the imaging unit)
So if you've replaced the imaging unit, then it almost has to be the toner itself or the toner drum. They are both part of the cartridge and the problem should go away if you replace the cartridge.

Good luck

May 14, 2010 | Samsung CLP-500 Laser Printer

1 Answer

Repeating defects problem after all consumables


Hi thpep:
Here is a repeating defects ruler. Mach the first defect at the top of the page and alighn with this ruler and it will tell you what assembly is giving you the problem.

Repeating Defects
Routine
Maintenance Item Component Distance between Defects
Imaging Unit Developer Roller [YMCK] 28 mm (1.10 in.)
Drum [YMCK] 62 mm (2.44 in.)
Drum Charge Rollers 25 mm (1 in.)
IDT 1 (Y and M, C and K) 132 mm (5.20 in.)
IDT 2 all colors together 132 mm (5.20 in.)
Transfer Roller Transfer Roller 64 mm (2.52 in.)
Fuser Assembly Fuser Assembly 82 mm (3.23 in.)

Defects Associated with Specific Printer Components
Some print-quality problems can be associated with specific assemblies, the most
common problems and the associated assemblies are listed below. Also, refer to the
specific print-quality troubleshooting procedure for more information.
Imaging Unit
■ Streaks
■ Fine Lines
■ Banding in Process Direction
■ Uneven Density
■ Voids
■ Repeating Defects
Transfer Roller
■ Toner on the back side of the printed page (simplex mode)
■ Light Prints
■ Repeating Defects
Fuser
■ Hot or Cold Offsetting
■ Repeating Defects

Hope this helps
pdouglasss@hotmail.com

Jul 16, 2009 | Xerox Office Equipment & Supplies

3 Answers

Black vertical lines on laserjet 4650 print out


99% of the time, this is the imaging drum or fuser.

Pull the imaging unit (same as imaging drum - they are interchangable) and examine the greenish glass tube. Does it have black streaks along the same lines that are on the paper? If so, then it needs cleaning / replacing. Don't touch the glass!! Use Q-tips and rubbing alcohol to gently clean the lines off. Air dry and replace into the machine.

If the imaging unit doesn't have lines, then it's the fuser. This can be replaced as part of a maintenance kit. If you've been using the printer regularly for more than 9-12 months, It's probably time for a Maintenance Kit for the machine anyway, which includes a fuser. I recommend Parts Now (http://www.partsnow.com/) for replacement kits, which have instructions on how to install with them.

Jun 22, 2009 | HP LaserJet 4650 Color Printer

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When printing the printer is leaving smears on the left side of the page and random letters. If I make 20 copies, the first 5 and the last few will have the marks. I already changed the drum and all...


you need check
1) you may make sure the smear occur after the photo drum unit or after fuser unit, you can stop printing when the paper goes around between the drum unit and fuser unit,
2) clean or change fuser leaner if the random smear occur after the fuser unit(not after the drum unit).
3) still check new drum unit there is a cleaner on it, it could be the smear occured if not enough cleaned drum surface
hope you fix it

May 06, 2009 | HP LaserJet 2840 Printer

1 Answer

Printer leaves black spots on paper


The black spots mean you either need a new imaging drum, transfer kit or fuser. You'll have to print some stuff and try to catch where the black marks are appearing. Try this method (it's called a Half-self test)

Load 2 -3 sheets of letter paper in tray one (manual feed) and remove paper from the rest of the trays.
From the information menu, request a demo page
The MOMENT the tail end of the paper disappears into the printer, open the right door. Open the front doors and release the levers for the imaging drum and the transfer drum. Carefully remove both pieces and examine your paper.



You should find the paper partway on the transfer belt but not in the fuser. If you see black marks here, start with the imaging drum. Open the shutter that covers the sea green shiny roller and look for marks on the drum (you'll see build up on the edges, that's normal, you should not see any scratches, pockmarks or toner on the center of the drum). If it looks clear, take a look at the transfer drum for marks or cuts on it's surface. (note: the transfer drum can be cleaned off with a dry lint free cloth, do not touch the shiny sea green roller of the image drum)

If everything looks good there, then likely the black marks are coming from the fuser. Let the printer sit, turned off for about half an hour to allow the fuser to cool. You can then remove the fuser and look at the rollers to see if there is any build up or damage there.

If you are not seeing any obvious issues with any of these parts, then start with the imaging drum. If you know that any of these parts have never been changed, then change them as they do have a limit to how many pages and how much time they can be used for.

Sep 16, 2008 | HP DeskJet 6540 InkJet Printer

1 Answer

Dell 5100cn printer


The only effect that the "non Dell toner" setting has is to raise the fuser temperature to the maximum. Since all toners are made up of ink and plastic, the fuser is what melts the fine plastic to the paper.

Dell toner is designed to melt at a lower temperature, however, since the non dell toners temperature value is unknow, this setting allows for that unknown.

In any case, neither of these things will cause lite, or faded print. In Fact, the toner cartridge for this model is actually nothing more then a toner storage device. Some cartridges contain the toner, the developer, and the drum. On the 5100 and the 5110 this is not the case.

The photo developers are located behind the imaging drum. you can see the 4 seperate developers, in the developer frame, when you remove the drum unit.

More then likely, if only the black is printing poorly, and the colors are printing ok, then the black photo developer is defective. This is a very messy job if you do not know what you are doing, and very involved.

You need to remove the top cover, the left side cover, the high voltage power supply, the supply tubes ( where the toner travels from the actual toner cartridges down to the developers ). Then once the tubes are removed, you have to remove the developer frame from the printer. Then you can get to the actual photo developer.

Good luck.

Aug 22, 2008 | Dell 5100cn Laser Printer

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