Question about Dell 3100cn Laser Printer

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Printing Problem You have informed us the cause of our problem : "This could be caused by the scanner(printhead) image drum or fuser." so should we change this printhead or the fuse?

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MESSAGE 024 -965 DISPLAYED.

WILL NOT PRINT -

CHECKED PAPER AND TRAY PUSHED IN TIGHT

Posted on Jun 04, 2008

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Posted on Jan 02, 2017

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Hp laser jet 3015, 7 horizontal lines, with ghost images printing/copying.


Hi:

Ghost images or repetitive image defects can be caused by one of two things. Either your toner cartridge is defective or your fuser is bad. The fuser is the component that heats up and fuses the toner to the paper. To determine which one it is do this. Start to print or copy something and shut off the printer just as the paper is going under the image drum but before it enters the fuser. If the problem you described is evident on the paper at this point then the problem is related to the drum. If the problem is not showing up on the paper at this point then the fuser is the culprit and it most likely would cost more then the unit is worth to repair.
Andrew

Nov 12, 2013 | HP LaserJet 3015 All-In-One Printer

Tip

Troubleshooting common laserjet printers problems


In order to understand and troubleshoot a Laserjet printer, I think it is important to understand how the printer functions. Laser printers for the most part contain some standard assemblies: Toner cartridge, Laser Scanning Assembly, High Voltage Power Supply, DC Power Supply, Paper Transport Assembly, Transfer Corona Assembly, Fusing Assembly, Printer Controller Circuitry, and Ozone Filter.
A laser printer undergoes a six step process that helps form images on paper. The six major steps are:

1. CLEANING- This is the first step in the process in which a rubber blade inside the printer cartridge scrapes any toner left on the drum into a used toner receptacle inside the cartridge. A fluorescent lamp discharges any remaining charge on the photosensitive drum (the photosensitive drum or EP drum loses its charge when exposed to light).

2. CHARGING- A special wire called the charging corona within the toner cartridge located above the photosensitive drum receives a high voltage from the High Voltage Power Supply. This high voltage is used to apply a strong , uniform negative charge to the surface of the drum.

3. WRITING- The laser is turned on and scans the drum from side to side, flashing on and off according to the bits of information the printer controller sends as it communicates the individual bits of the image. Where ever the laser touches, the photosensitive drum's charge is reduced to a slight negative charge. As the drum rotates, a pattern of the exposed areas is formed, representing the images to be printed.

4. DEVELOPING- Now the surface of the drum holds and electrical representation of the image being printed. Toner can now be transferred to the areas that were exposed in the writing step. A metallic roller called the developing roller inside the cartridge now acquires a charge from the HVPS. The toner sticks to this roller because there is a magnet located inside the roller and because of the electrostatic charges between the toner and the developing roller. The developing roller rotates toward the EP drum, the toner comes between the the developing roller and EP drum and is attracted to the areas that have been exposed by the laser and the toner is repelled by the areas that were not exposed to the laser. The EP drum continues to rotate until the developed image is ready to be transferred to paper.

5. TRANSFERRING- The developed image into position. The controller notifies the registration rollers that the paper should be fed through. The rollers move the paper underneath the EP drum, and the transfer process can begin. The controller sends a signal to the corona wire or corona roller (depending on which the printer has) and tells it to turn on. The corona wire/roller then acquires a strong positive charge from the HVPS and applies it to the paper. Now that the paper is charged, it pulls the toner from the EP drum and the line of contact between the roller and the paper. Once the rollers move the paper past the corona wire, the static-eliminator strip removes all charge from that line of paper.

6. FUSING- This is the final step in the process where the toner image is made permanent. The roller push the paper toward the fuser rollers. The fuser rollers grab the paper and is now in control of the paper. As the paper passes through the fuser, the 180 degree fuser roller melts the resin of the toner, and the rubberized pressure roller presses it permanently into the paper. The paper continues on through the fuser and then exits the printer.

The following picture will give you a general idea of the process and components.

6e8ecec.gif


TROUBLESHOOTING:

PAPER JAMS- These are by far the most common problem encountered by all printers at one point or another. Some common causes of paper jams are as follows:

1. The paper is wrinkled or has upturned edges, the wrong type of paper is used, the paper is not place properly in the feed tray (usually not even).

2. If paper jams start happening at a frequent rate then the problem could be a worn roller (which can be replaced and are not that expensive). The following pictures shows the rollers.

9016659.jpg

6a2eae9.jpg

3. Anther cause could be related to the drive gear of the pickup roller, shown here:
381b1a8.jpg


BLANK PAGES:

If your printer is printing nothing but blank pages, then the toner is not being put on the paper. There are three major causes for this happening.

1. The toner cartridge could be empty or if you have just bought a new cartridge it is possible that you purchased a defective one. If you forget to remove the sealing tape the toner will not be able to be accessed properly by the printer.

2. The Corona Assembly could have a malfunction such as a missing or damaged corona wire. If this is the case the developed image will not transfer from the EP drum to the paper. The following is a picture of Corona Assembly:
423433f.gif

3. Another cause is the High Voltage Power Supply. If the power supply does not charge the components with the proper voltages. Picture of an HVPS:
451fd29.jpg

REPETITIVE SMALL MARKS OR DEFECTS:

This usually happens with heavily used or older laser printers. The following could be causing the problem.

1. Toner may have been spilled inside the printer.

2. A chip or crack in the EP drum can be another cause which can cause a toner build up and can get stuck on one of the rollers. EP drum picture:
f036288.jpg

VERTICAL BLACK LINES ON THE PAGE:

This can be caused by the following:

1. A groove or scratch in the EP drum.

2. A dirty Corona Wire which prevents a sufficient charge from being placed on the EP drum.

VERTICAL WHITE LINES ON THE PAGE:

The number one cause is the following:

1. This usually happens when proper cleaning and maintenance is not performed on the printer. Foreign matter gets caught on the transfer Corona Wire.

IMAGE SMUDGING:

This happens when you pick up a paper that has just come out of the printer and when you touch the ink, it smudges or smears.

1. The fuser could be malfunctioning or need replacement due to a burnt out halogen light inside the heating roller.
87c0647.jpg

2. Dents or cold spots in the fuser heat roller can also cause the problem.

GHOSTING:

Ghosting is what you have when you can see light images of previously printed pages on the current page. Usually one of two things cause this problem.

1. Bad erasure lamps. This causes the previous electrostatic discharges to not be completely wiped away.

2. A broken cleaning blade. This causes old toner to build up on the EP drum and presents itself in the next printed image.

PRINTER PRINTS PAGES OF GARBAGE:

This happens when the print on the paper comes out like garbage and is not understandable or looks like some government secret code on the page. The following are usually the causes.

1. The printer driver software is not the proper driver for the printer or it is not configured for the correct page-description language (PCL or PostScript).

2. A bad formatter board. Remember the formatter board receives information from the computer and turns it into commands for the various components in the printer.

44a98cc.jpg


The following are some extra pictures to gain a better idea of some of the terminology used in this tip and get a better view of its components.
8c70d6a.jpg


Close up of Laser Assembly and mirrors:
96cb825.jpg


Laser diagram on how the process works:
84c37fe.gif

Fuser Gear:
c0f407d.jpg

Separation pad where pickup roller attached:
de7421c.jpg

Common Fuser Parts:
e7902b2.jpg

HP LASERJET ERROR MESSAGES:

00 Ready--The printer is in standby mode and ready to print.
02 Warming Up--The fuser is being warmed up before the 00 ready state.
05 Self Test--Full self test has been initiated from front panel.
11 Paper Out--The paper tray sensor is reporting no paper in tray.
13 Paper Jam--A piece of paper is caught in the paper path. Open the cover and remove any jammed paper and close the cover.
14 No EP Cart--No EP cartridge (toner cartridge) installed in the printer.
15 Engine Test--An engine self test is in progress.
16 Toner Low--The toner cartridge is low. Replace the toner soon.
50 Service--A fuser error has occurred. Commonly caused by a fuser lamp failure.
51 Error--Laser scanning assembly problem.
52 Error--Scanner motor in laser has malfunctioned.
55 Error--Communication problem between formatter and DC controller.

on Mar 16, 2010 | Office Equipment & Supplies

1 Answer

Background printing


This can be caused by not using genuine toner. Drum,developer or fuser unit may require replacing.

Mar 17, 2013 | Kyocera Mita FS-1920 Laser Printer

1 Answer

Duplicate print below each line on copies/printing/fax, changed fuser unit and drum unit and had cleaned. Seems to happen after toner changes, can the toner cartridge holder be defective and cause this...


Try to stop the copier (by jamming a sensor or opening a cover) mid-way through the printing cycle. Remove the 1/2 copied document out from the drum area. Look to see if you have the double printing. This will eliminate the fuser as the problem. If you don't have the double printing then the fuser's cleaning roller may be shot causing repeat image. If it is in the drum area it will be hard to determine since you already replaced the drum(?). But there is a "cleaning" lamp or charge wire on the drum to check.

Aug 10, 2010 | Ricoh Aficio 1013 All-In-One Laser Printer

1 Answer

Hp 4250 laser jet vertical streak ghost image


Hello,
The problem you are having is caused by the fuser. The fuser is the part in the printer that heats up and basically melts ( fuses) the toner to the page. The fuser has a heat roller that is coated with teflon, your fuser coating has worn off in spots so the toner is sticking to the roller and causing the ghost image. You will need to order a replacement fuser. You can do a search on Google to find a replacement, the parts number is RM1-1082.

I hope this helps, if so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com

May 04, 2010 | HP LaserJet 4250 Printer

1 Answer

Printed image repeats later


I have a Dell 5100CN, and believe that this problem is caused by the drum not releasing the full charge which holds the ink in place on the drum until the page is printed. After the image is transfered to the Drum, the 'Fuser' unit heats up the paper and pressure forces the paper against the drum to transfer the toner from the drum to the paper.

Since the Image is printing, and you are getting a ghost, I guess that the problem is most likely the 'Pressure Roller' or 'Heater' in the 'Fuser' unit.

Buying the Fuser unit from Dell could cost you around $200 from Dell, but I just found one on eBay for $129 Got to www.ebay.com and search for item number 190388919845

I highly recommend that you buy a new OEM (original Equipment Manufacturer (Genuine Dell)) 'Fuser Unit'

Good Luck

Apr 23, 2010 | Dell 3010cn Laser Printer

3 Answers

I have a Lexmark E450dn displaying a "935.15 Service Printhead" error message and will not print. Seeing as Laser Printers do not have printheads, instead they have Scanners and Fusers, which should I be...


a 935 printhead error is a fatal error which means the scanner motor has failed to initialize. the term printhead is short for printhead scanner. this error can be caused by either the engine board or the scanner % wise 40%engine board 60% scanner ive done 120 repairs on lexmark laser for the last 7 years trust me one of these is the problem

Jun 16, 2009 | Lexmark E450dn Laser Printer

1 Answer

HP Colour Laserjet 3550 printing problems


I can tell you that it is NOT the Fuser unit. I would change the drum unit first. This would be the most likely cause.

Mar 11, 2009 | HP Color LaserJet 3500 Printer

1 Answer

Faxes come out faded


possible causes are low toner, worn drum, bad fuser, or defective polygon laser scanner, for a laser based faxes. for inkjet based fax machines faded prints are usually caused by low ink levels, worn printhead/s.Good Luck!

Sep 16, 2008 | Office Equipment & Supplies

1 Answer

Printing problems in a 3100 colour lazer printer


This could be caused by the scanner(printhead) image drum or fuser.

May 18, 2008 | Dell 3100cn Laser Printer

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